July 2013 - The Aquaculturists round-up

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The Aquaculturist A regular look inside the aquaculture industry

July 2013

THE AQUACULTURIST | July 2013

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THE AQUACULTURIST | July 2013 Additives

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The Aquaculturists blog is an online offshoot of International Aquafeed magazine. While the bi-monthly magazine covers aquafeed issues in-depth, the Aquaculturists takes a lighter approach.

Our columnists have a keen eye for the most interesting, relevant and (let’s face it) bizarre aquaculture stories from across the world. Each weekday we scour the internet for topnotch news and package it for your perusal in one neat daily digest.

The Aquaculturists are also massive fans of industry events and shows and can often be found out on the road. Here they share stories (and photos) from their travels and, being unable to keep a secret, share details of upcoming events.

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If you have any aquaculture news you think we should shout about, email Alice at alicen@ perendale.co.uk

01/07/13: Seal proof cages; fish farming in the Amazon; help develop the ASC Feed Standard

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Despite being cute, seals are a pest to fish framers, regularly breaking into cages and munching on the fish inside. In Scotland, farmers are allowed to shoot rogue seals but in Tasmania, Australia farmers are taking a less deadly approach.

Huon Aquaculture, which has the largest holding pens in the world, will invest AU$40 million dollars over the next three years to install state of the art seal proof cages.

The company has also bought a Owner of Huon Aquaculture Peter Bender said the company has also invested in a new $1.3 million boat to install the new cages.

Although AU$40 million, is a hefty price tag, seals cost an estimated 10 percent loss in revenue for Huon each year.

More information...

Brazil has chosen Norway as its collaboration partner to modernize and up-scale its aquaculture industry.

“The perspectives are reduced deforestation in the Amazon, less CO2 emissions and increased food security for the population in a developing country,” says Atle Mortensen, senior scientist, Nofima.

Since 2009 Nofima (more than 400 employees) has had an agreement with Brazil’s largest research institute for fisheries and aquaculture, Embrapa (approximately 9,000 employees). The collaboration agreement has the complete approval of the fisheries ministers in both countries.

“But the collaboration has still not taken off to the degree one could expect in an area with such enormous potential. The freshwater resources in the Amazon are enormous. There is more fresh water here than in the world’s 11 next largest rivers combined. This is in addition to the enormous economic zone off the 8,500 km long coastline,” says Mortensen.

Read more...

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The Aquaculture Stewardship Council (ASC) has launched a project which aims to develop the ASC Feed Standard. ASC invites experts from the aquaculture feed industry to join a working group and actively contribute to the future of responsible aquaculture feed.

The project is starting shortly and a new, globally applicable, ASC Feed Standard should be ready by the end of 2015. www.satake-group.com 3

THE AQUACULTURIST | July 2013

The standard will set out requirements and introduce consistency for the aquaculture feed industry to operate on a more environmentally sound and socially responsible basis. It will allow manufacturers who have demonstrated their environmentally responsible production practices to gain recognition for their efforts.

For further information, please contact Michiel Fransen. Information on the Feed Project can be found on the ASC website under Projects.

Pilot tests of the Feed Standard are expected to start in the second half of 2014.

More information...

02/07/13: State of Norwegian aquaculture; Barramundi in Sri Lanka; Nigeria targets catfish production Norway has a thriving aquaculture industry which makes a considerable contribution to the country's economy. In this speech, Lisbeth BergHansen, minister of fisheries and coastal affairs, outlines the reasons behind the success and looks forward to the future of the industry.

Read the full speech...

Barramundi may be the next big fish trend in Sri Lanka after the government approved a US$2.5 million for a farming project off the coast of Trincomalee in North Eastern Sri Lanka.

Oceanpick, a Sri Lankan firm, will partner with a Scottish company to farm the fish in cages, in the first aquaculture facility in open water in the country.

Although around 50 percent of seafood in the world comes from farming, in Sri Lanka 90 percent is still from the wild catch.

More information...

Catfish farmers are aiming to increase catfish fish production to 1 million metric tons a year by 2018, reports the Guardian newspaper in Nigeria.

The drive will take place in the south east of the country which and will create more than 500,000 jobs.

Read more...

Event: Aquaculture Europe 2013 latest update

As you may know the European Aquaculture Society is organising its Aquaculture Europe 2013 event in Trondheim, Norway from August 9-12, 2013. Registration for AE2013 is available online and the next deadline is July 14, 2013. Please also consider joining EAS when registering to get the member rate, as well as the numerous benefits that membership provides.

The Research Council of Norway, Innovation Norway, the Norwegian Seafood Research Fund and the European Aquaculture Society have teamed up to organise the seminar 'Making Sense of Science' on Tuesday, August 13 - the opening day of the Aqua Nor 2013 exhibition.

The purpose of the seminar is to turn the spotlight on knowledge needs in connection with the development of sustainable solutions for the aquaculture industry.The seminar is divided into two parts: Part I is targeted towards the aquaculture industry and contains presentations and discussion on feeds and feeding; sea lice; recirculation and water saving; sterile fish and innovation driving industry.

Part II is targeted towards industry leaders, the authorities and politicians, with presentations on research perspectives, domestication and markets; genetic effects of escapes; veterinary medicines; value-addition and growth.Â

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THE AQUACULTURIST | July 2013

Part II of the seminar will be officially opened by Norwegian Minister of Fisheries and Coastal Affairs Lisbeth Berg-Hansen. See the programme here.

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Important note: All AE2013 delegates have free access to Aqua Nor and hence to this event. However, all those that wish to attend Part II of the seminar need to register online (at the same pages as the programme, as seating capacity is limited).

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YSI has launched a new laboratory instrument product line to measure pH, ORP, conductivity or BODs. According to Tim Grooms, YSI director of Water Quality Products, “Our MultiLab IDS line has a unique multiparameter trick up its sleeve. Just one meter can measure three paramaters at a time — any three of pH, ORP, BOD, or conductivity, or even three of the same parameters. No other competitive product on the market can do that.”

The YSI MultiLab IDS line includes the MultiLab 4010‐1 (one channel), MultiLab 4010‐2 (dual channel), and the MultiLab 4010‐3 (three channel) as well as smart digital probes for optical based BOD5, pH, ORP and conductivity measurement. The product line has been engineered from the ground up for the laboratory, with an easy‐to‐use and ‐calibrate menu‐driven operation and improved data integrity and security.

Each of the instruments channels can be used for any probe. The one channel instrument offers an easy‐to‐read monochrome graphic LCD while the two‐ and three‐channel versions offer color LCD displays, another unique feature in the industry.

“Another advantage has been built into the digital sensors,” says Grooms. “As soon as they’re plugged in, the digital sensors are automatically recognized by the MultiLab IDS. That explains the IDS in the name (Intelligent Digital Sensors).”

More information...

No impact from salmon farming on wild stocks

On the publication of a peer-reviewed scientific paper confirming the lack of evidence of negative impacts on wild salmon stocks from fish farming, IFA says it is now time to think of coastal communities and for all sides in the divisive debate to work together to create badly-needed jobs and economic activity in peripheral areas.

The paper, using data on 352,142 wild fish at eight locations between 2001 and 2009 finds no correlation between the presence of aquaculture and the performance of adjacent wild salmon stocks. The paper states “In fact, the rivers in the River Basin Districts with salmon farms have performed best in terms of meeting their Conservation Limits and also in terms of ability to support a commercial catch by way of a commercial draft net fishery”. The paper supports previous scientific work which found that potential impacts of sea lice from farmed salmon on wild stocks were, at worst, negligible. The scientists involved work mainly for the Marine Institute, the chief scientific advisor to the Minister for the Marine and the Government on wild and farmed fish issues.

IFA Aquaculture executive Richie Flynn said, “The drive and focus of Europe under the new Common Fisheries Policy is to develop fish and shellfish farming and neither industry nor government should be distracted any longer from this important task. We need to fill a huge 8 million tonne gap between production and consumption of seafood in the EU using the experience, quality control, environmental management and confident skills of the EU industry to produce world class farmed fish and shellfish.”

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THE AQUACULTURIST | July 2013

One new full time job can be created for every 50 tonnes of added farmed output we can create. We have the environment, the markets, the people and forty years’ experience to farm raw material for export and our artisanal smokers and processors at home in labour intensive industries.

There is an acknowledged untapped huge potential in the tourism sector which bodies such as the IFI should be promoting instead of doing the opposite and wasting taxpayers money and the State’s time and energy scapegoating the fish farming sector and turning off potential visitors to fish in our rivers.

In the face of such overwhelming evidence, the media, politicians and public will have to question the motives of anyone who persists in creating divisions and casting slurs (by way, for example, of illegally defacing the countryside with posters) on their neighbours for advancing an indigenous and sustainable food sector and to what possible alternative to constructive co-operation between two compatible sectors they can offer.

Read the journal...

03/07/13: DNA tesing on escaped barramundi; tainted tilapia hospitalises mourners

Researchers in Queensland, Australia are using DNA technology to study the impact of fish escapees.

The effect of mass escapes from fish farms is not documented so when up to 100,000 barramundi were lost from a North Queensland fish farm destroyed in Cyclone Yasi two years ago, researchers saw an opportunity to learn more.

Professor Dean Jerry and a team from James Cook University are working with recreational and commercial fishers in order to extract DNA from the fins of fish caught in the Hinchinbrook Channel, near Cardwell.

DNA parentage analysis is used to determine if fish have derived from broodstock parents known to have been used to breed the fish stocked into the farm.

Read more...

04/07/2013: Ghana launches aquaculture development; tilapia and tomatoes

The Ghana National Aquaculture Development Plan (GNADP) has been launched, as the country's first blueprint to guide the sustainable development of the aquaculture value chain.

Mr Nayon Bilijo, Minister of Fisheries and Aquaculture Development, on Wednesday expressed the ministry’s displeasure and abhorrence to the haphazard siting of cages on the Volta Lake by fish farmers.

He mentioned Sedorm, Gyakiti, Kpeve, Kagyanya and Akuse as communities in the Volta and Eastern regions were the offending farmers were located and advised them to follow laid down procedures.

Implementation of the plan will cover a five year period at a cost of US$85 million.

Read more...

Tomatoes and fish thrive in an artificial environment that uses technology to ensure optimal results. Dirty water from fish tanks provides nutrients that are essential for plant growth.

As a result, a new project in Berlin aims to grow vegetables and farm fish together in zero emission conditions.

Read more...

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THE AQUACULTURIST | July 2013

05/07/13: Cage culture brings hope to Haitians; Delaware Aquaculture Act passed; copper prevents fish from avoiding danger

Haiti is the poorest country in the western hemisphere with more than half of its population malnourished. However, a NGO is trying to change this by investing in cages for tilapia. The Caribbean Harvest Foundation has provided cages able to hold up to 20,000 tilapia to seven villages in the main eastern highway linking Haiti and the Dominican Republic region.

Dr Valentin Abe, who is behind the scheme, wants to use modern aquaculture technology to create a domestic fishing industry for Haiti. For Haiti to have fish consumption that’s close to the world’s average, you need to produce about 120 million pounds of fish a year. However, at present, the entire country produces less than 30 million pounds of fish.

Read more...

Delaware looks set to joins its fellow east coast states in commercial aquaculture after the Senate unanimously passed the Delaware Aquaculture Act of June 26, 2013.

The bill allows the Delaware Department of Natural Resources and Environmental Control to establish regulations for the leasing of acres in the Inland Bays.If signed into law, the bill would allow commercial shellfish farmers to lease one- to five-acre tracts of shellfish grounds in Delaware’s Inland Bays.

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Fish fail to detect danger in copper-polluted water. A new study, to be presented at the meeting of the Society for Experimental Biology on the 5th of July, shows that fish cannot smell a danger odor signal emitted by other fish in waters contaminated with copper.

Research conducted by Dr Bill Dew at the University of Lethbridge in Canada looked for the first time at the effect of the metal contaminants nickel and copper on specific fish olfactory sensory neurons, and how these affect the fish's ability to detect and swim away from an odour released by other fish of the same species (conspecifics) when a predator attack takes place.

Dr Bill Dew said, "Our research shows that copper affects the function of a specific type of olfactory neurons in fish, preventing them from detecting important olfactory signals used to detect fish injured by predation."

Using a technique that measures the response of the olfactory system to odours, the researchers showed that copper and nickel affect the ability of different cells to detect odours. Furthermore, using a series of antipredator trials, which measured avoidance of fish to a conspecific skin extract, the researchers found that fathead minnows exposed to copper do not avoid the skin extract, while unexposed and nickel-exposed fish do.

Dr Bill Dew said, "This means that fish in an environment contaminated with copper would not be able to detect compounds released during a predation event and potentially not avoid predators, while fish in a nickel contaminated environment would be able to detect these compounds and undertake predator-avoidance behaviours."

Read more...

Statement on ISA testing from the CFIA

The decision to to delist the Atlantic Veterinary College (AVC) as a World Organisation for Animal Health (OIE) reference laboratory has caused quite a stir.

The college had its OIE status revoked in June 2013 after an audit found a series of weaknesses affecting the quality of diagnoses.

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THE AQUACULTURIST | July 2013

This has caused concern among various groups of people including anti-salmon farming supporters, parts of the scientific community and some sectors of the media. The argument centres around whether the lab been delisted because it had found evidence of ISA in wild B.C. sockeye salmon, challenging the Canadian Food Inspection Agency's position that the virus is not present in the province.

The debate has rumbled on and now the Canadian Food Inspection Agency's (CFIA) has released a statement stating its position on the decision.

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The full statement is below: Recent allegations need to be corrected about the Canadian Food Inspection Agency's (CFIA) role in the decision to delist the Atlantic Veterinary College (AVC) as a World Organisation for Animal Health (OIE) reference laboratory.

FEED

In Canada, infectious salmon anaemia (ISA) is a federally reportable disease. This means that all suspected cases must be immediately reported to the CFIA for follow-up investigation and testing. In late 2011, the former OIE reference laboratory at the AVC reportedly found evidence of ISA. Because any suspected cases of ISA must be confirmed at a designated federal laboratory, the National Aquatic Animal Health Laboratory, overseen by Fisheries and Oceans Canada (DFO), conducted testing of fish samples. The positive test results reported by the AVC were not corroborated by the DFO laboratory.

Due to the differences observed in these test results, the CFIA conducted evaluations of both laboratories to assess their capability to reliably detect the ISA virus in accordance with accepted scientific standards. The evaluation conducted at the AVC identified concerns, which may have led to the questionable ISA test results. This information was shared with the OIE. The OIE designates reference laboratory status based on a laboratory's ability to maintain the highest technical and operational standards. The OIE undertook an independent audit of the AVC after another OIE member country also reported issues related to ISA test results from this laboratory. The OIE audit, performed by an international panel of scientific experts, found a series of weaknesses affecting the quality of diagnoses performed at the AVC laboratory. The decision to delist this laboratory as an OIE reference laboratory was approved unanimously by the General Assembly of the OIE in May 2013.

The CFIA is committed to protecting the health of wild and farmed fish, and takes reports of ISA seriously. On the east coast of Canada, the CFIA has confirmed, responded to and posted findings of ISA publicly. The CFIA posts reports on all federally reportable diseases including ISA on a monthly basis.

As part of the CFIA's multi-year wild salmon disease surveillance initiative in British Columbia (BC), 4175 wild salmon samples were collected directly from BC waters, processing plants and enhancement hatcheries in March 2012. All of the samples have tested negative for ISA. The samples were also tested for either infectious haematopoietic necrosis (IHN) or infectious pancreatic necrosis (IPN) and these tests were also negative.

This surveillance initiative is led by the CFIA in partnership with many organizations, including DFO, the Province of British Columbia, First Nations groups, the aquaculture industry and the fishing and processing industry.

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THE AQUACULTURIST | July 2013

All sampling, testing and response activities associated with this surveillance initiative are based on internationally recognized science. They are also consistent with international guidelines and national aquatic animal health requirements. A full report of the surveillance initiative is available through the CFIA website.

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By the end of 2013, this surveillance program is expected to collect an additional 5,000 samples for testing. The CFIA is also finalizing its approach to evaluate ongoing farmed salmon testing activities in BC. The CFIA expects to begin the collection and testing of farmed Atlantic and Pacific salmon this fall.

As part of the CFIA's transparency initiative, additional information on this surveillance initiative and CFIA National Aquatic Animal Health Program, are available on the Agency's website at www.inspection.gc.ca/aquatic.

08/07/13: 1 million fish released in Cambodia; caged aquaculture proves a success in India; aquaculture on the rise in Bangladesh

PLANTS

National Fish Day in Cambodia saw the release of 1 million fish to celebrate the launch of the country's national aquaculture institute.

The Research and Aquaculture National Institute is a government-funded organisation that sets its goal at producing up to 20 million fish per year.

“We hope this National Institute will succeed in producing fish births to meet people’s needs and maintain fish from extinction,” Chan Sarun, Minister of Agriculture, Forestry and Fisheries, said at the ceremony.

Fish populations are already on the rise, according to the Ministry of Agriculture. Between 2011 and 2012, the number of fish in Cambodian fisheries rose by 14 per cent.

Read more...

An caged fish project in Kerala, India has been deemed a success after up to 80 kg of carp was caught in the first harvest.

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The inland water project, the first in the state in the Pookode Lake in Wayanad district, was launched by the Central Inland Fisheries Research Institute (CIFRI), Bangalore, in association with the State Fisheries Department and aimed to draw attention to the potential of cage culture.

The seven-month project saw around 200 fingerlings grow to an average size of 500 g.

Read more...

Fisheries experts, researchers and officials at a seminar in Bangladesh predicted that about 57 percent of the total fish production would come from aquaculture by the year 2014-15.

In 1972-73, the contribution of the aquaculture fish production was only 2 percent while it significantly raised to 53 percent in 2008-09 due to huge demand of fishes during the last three decades.

Read more...

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Event: LACQUA13

Submit your abstract online for LACQUA13, Villavicencio, Colombia.

The IV Latin American Conference of Indigenous Species, the XIX Aquaculture Day of the University of los Llanos, the VI Aquaculture Forum and LACQUA13 will take place on October 8-11, 2013 in Villavicencio, Colombia.

This conference and trade show organised by the Latin American and Caribbean Chapter of the World Aquaculture Society is the first event in the Spanish.

More information is available online www.was.org or www.conferenciapecesnativos2013.com (Spanish).

For trade show information contact: mario@marevent.com.

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09/07/13: Novel oyster farming technique comes to Florida; learn as you go fish farming; under ice lake might have fish

Drought, lack of fresh water and over harvesting all pose a threat to oysters. However, one farm in Florida, USA is taking a proactive approach by trying out an innovative kind of technology.

Leo Lovel's Spring Creek Oyster Company has a lease to grow oysters in floating cages near the water's surface. Current law requires the cages to be within six inches of the sea floor.

Floating cages have been used to successfully farm oysters in Spain, Italy, Australia and Canada but are new to Florida.

Oysters grow faster in floating cages as there are more nutrients at the top of the water.

Read more...

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When it comes to aquaculture, flexibility is not a word you hear often.

Usually we read about strictly regimented operations where every last detail has been carefully planned. So news of a farm that will run on a 'learning by doing' basis caught my attention.

Plans for a 300-hectare site in Waikato, New Zealand, include a private operater growing either kingfish or hapuka while a contractor monitors the environmental impact. Initially, this method will be trialled over half the area with plans to upscale it if it is a success.

The council believes this approach is suitable at the right scale and benefits from the ability to react to problems swiftly.

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The development holds potential for significant money and jobs in the region. A council-funded study estimates that 6,000 tonnes of fish farming will generate NZ$100 million create 470 full time jobs.

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An Antarctic lake 4 km below the ice might be home to fish according to a study published in the PLoS One Journal.

Scientists sifted genetic material in ice drilled from close to the surface of Lake Vostok and found signatures for organisms such as bacteria that are often associated with marine molluscs, crustaceans and even fish.

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However, the team have also suggested that the material may also represent past contamination.

Read more...

Event review: Olmix seminar on marine biomass for nutrition

On June 18, 2013 , Olmix held a seminar on 'marine biomass for nutrition and for human and animal health' at Hotel SOFITEL Ho Chi Minh city , Vietnam. Over than 100 participants including Feed millers, University, Farmers, Research Institute have joined this seminar to listen speakers from VITALAC, BENEFIQ, INRA (French National Research Institute for Agronomy), AMADEITE, ZOOPOLE that have presented their views on food and safety issues and algae as a link from nutrition to health for humans and animals.

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Accompanied by Breton politicians, experts from Zoop么le and several Breton SMEs, Olmix highlighted the quality and the wealth of the seaweeds of Britain and especially from Parc d'Iroise.

Asian feed and food chain actors were very attentive to the arguments of experts in nutrition and animal health, Dr Fr茅d茅ric Bernard of the Zoop么le Ploufragan and Dr Henry Salmon of the INRA. After a presentation by Dr Bernard in the need of de-medicalization of global livestock sector, Dr Salmon presented the immune-modulatory and anti-inflammatory seaweed properties.

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THE AQUACULTURIST | July 2013

The public was even more impressed when representatives from the Parc d'Iroise, a marine natural park off western Brittany, explained that very high-quality marine algae fields of Molène are a resource in active ingredients for the renowned actors of the pharmaceutical. Food security is a major concern in the area of South Asia, where livestock production is expanding. Freeing the use of antibiotics to the sector nutraceutical or nutrition-health sector through the use of algae is a natural process in these countries where the algae are on the daily menu.

Hervé Demais, consultant veterinarian for Olmix extended the speech explaining that while livestock production is growing rapidly, aquaculture production is also to other issues, especially the growing need for fish meal that begins to be a problem. Again, algae can provide part of the answer, because some of them are very rich in protein, component searched the fishmeal.

The algae from Brittany in Breton waters of incomparable quality represent an ocean of opportunities for sustainable agriculture and food of 9 billion humans in 2050.

The seminar was concluded by Chef of la verticale, Dider Courlou, and some of his seaweed dish creations.

More information about Olmix...

10/07/13: Qatar invests in fish breeding; behind the scenes of Cooke Aquaculture; Marine Harvest Canada gets three star BAP status The government in Qatar has announced plans to build a fish breeding farm and improve the central fish market in Doha.

Mohamed Saeed Al Mohannadi, director of the fisheries department, told The Peninsula that bids have already been invited.

“Work on the project will start in August this year and would likely be completed in February of 2015,” he said.

Read more...

Cooke Aquaculture is one of the world's largest fish farming, processing and distribution companies.

Amy Woolvett of the Shelburne County Coast Guard takes a behind the scenes tour round the Cooke Aquaculture facility, Kelly Cove Salmon, Canada. Find out what she got up to.

Read more...

Marine Harvest Canada (MHC) has become British Columbia's first salmon company to achieve three-star Best Aquaculture Practices (BAP) certification.

MHC's Port Hardy processing plant has earned BAP certification, joining the company's BAP-certified salmon farms and the Skretting Canada feed mill from which it sources feed.

Located on the northern tip of Vancouver Island, the Port Hardy facility processes more than 35,000 tons of Atlantic salmon annually.

Read more...

Event: Asian Pacific Aquaculture Conference 'Positioning for profit'

'Positioning for profit' is the theme of the Asian Pacific Aquaculture Conference and Trade Show scheduled from 10-13 December 2013 in Ho Chi Minh City. The conference emphasises the need for the whole industry to take a more strategic approach to expansion.

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THE AQUACULTURIST | July 2013

Simply producing product and getting locked into selling it as a commodity is not the path for industry expansion into the future. New approaches are needed in all areas of business from governance through to research, from harvesting through to marketing, and from education right through the value chain to the consumer.

The Conference, which is hosted by the Vietnamese Ministry of Agriculture and Rural Development (MARD), organised by the Asian Pacific Chapter of World Aquaculture Society (WAS-APC), supported by RIA2, and AIT and sponsored by Uni-President (Gold), Biomin (Silver) and a number of special session sponsors, will have some unique features.

A highlight will be the first appearance in Vietnam of Emeritus Professor David Hughes from Imperial College, London (a marketing expert) who, besides being the opening keynote plenary, will also conduct a workshop on seafood marketing.

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Dr Pham Anh Tuan, Deputy Director General, MARD will also present at the plenary and will focus on the terrific progress that has been made in aquaculture by Vietnam and will also talk about the opportunities and challenges as the industry continues to build momentum.

Lukas Manomaitis will preside over his last conference as President, WAS-APC, and will hand over the reins to the Chairman of the conference and Director of AIT in Vietnam, Dr. Amrit Bart. Both Lukas and Amrit have a great affinity with Vietnam and are keen to ensure that this Conference and Trade Show will be memorable especially as it is the first WAS-APC event in South East Asia since 2009.

As most people in the industry know Vietnam is the third largest aquaculture producing country in the world and Ho Chi Minh City is the centre of the growth, much will be learnt by those attending and engaging in all aspects of the event including the pre and post workshops, farm and industry tours.

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The 5th International Oyster Symposium is joining forces with the Conference ensuring that there will be an exciting stream of oyster expertise engaging the great work done in recent years which has seen production in Northern Vietnam climb to over 7,000 mt in just a five year period.

The World Aquaculture Society will be holding its mid-year Board meeting prior to the event ensuring that it is front and centre in the plans of the Society.

Unprecedented industry interest has seen organisers expand available space and additional trade booths have now become available. Stay in touch with all developments for Asia Pacific Aquaculture 2013 through www.was.org. For trade show information contact mario@marevent.com.

11/07/13: Florida's aquaculture profits; EU agrees fisheries fund rules; OriginOil sets up base in California

Florida's aquaculture industry sells US$69 million worth of produce a year according to state agricultural officials. Although ornamentals made up the bulk of the revenue contributing $35.5 million, the state also farms turtles, alligators and aquatic plants.

Read more...

The European Parliament has agreed operating rules for a 6.5 billion euro funding pot for EU fisheries. From 2014, the European Maritime and Fisheries Fund (EMFF) will fund EU Common Fisheries Policy (CFP) measures to make EU fisheries sustainable and develop aquaculture.Â

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"The adoption of my report is a crucial step in protecting a European model of sustainable and competitive fishing", said rapporteur Alain Cadec (EPP, FR).

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THE AQUACULTURIST | July 2013

OriginOil, the water clean up specialist, is to establish a permanent technology showcase near California’s Salton Sea. The facility will be based at Aqua Farming Technology, a leader in sustainable fish farming since 1993 in California’s Coachella Valley.

“At Aqua Farming Tech, Rocky French operates a 120-acre model of sustainability,” said Riggs Eckelberry, CEO, OriginOil. “We’re honored that he’s working closely with us to set up a permanent showcase within driving distance of our headquarters in Los Angeles.”

Read more...

Event: 7th International Symposium on Sturgeons

Sturgeon Science and Society at the Crossroads: Meeting the Challenges of the 21st Century reflects the ongoing tension between economic development and sturgeon conservation which is at play not only in China but in many countries from around the world. The Sturgeon Aquaculture industry also invites speakers for more technical presentations. Already over 300 Sturgeon experts registered for the upcoming 7thInternational Symposium on Sturgeons in Nanaimo, BC, Canada.

Register for the symposium online.

Contact mario@marevent.com for more details on the trade show.

12/07/13: Aquaculture history lesson; new catfish species discovered in Brazil; macroalgae patents around the world

We start the blog today with a history lesson. But before you roll your eyes are drift off into a daydream, it's about ancient sustainable aquaculture.

According to National Geographic, ancient Chinese societies fed silkworm feces and nymphs to carp raised in ponds on silkworm farms, Egyptians farmed tilapia as part of their elaborate irrigation technology, and Hawaiians were able to farm a multitude of species such as milkfish, mullet, prawns, and crab. Archaeologists have also found evidence for aquaculture in Mayan society and in the traditions of some North American native communities.

It's a fascinating article for history buffs and aquaculture aficionados alike.

Read more...

A new tiny species of catfish has been discovered in Brazil according to the open access journal Zookeys.

Scientists discovered a tiny new species of catfish in the waters of Rio Rio Paraíba do Sul basin, Brazil.

The new species Pareiorhina hyptiorhachis belongs to a genus of armored catfishes native to South America where and found only in Brazil.

These peculiar fish get their name from their strange elongated mouth barbels that remind of cat's whiskers. The new species is distinguished from others species of the genus by the presence of a conspicuous ridge on the trunk posterior to the dorsal fin (postdorsal ridge).

Read more...

Japan, China and South Korea account for 84 percent of the macroalgae patents according to a study by Spanish National Research Council (CSIC).

The study looked at the distribution of applications and products patents derived from macroalgae among countries all around the world.

Other Asian countries such as the Philippines, Indonesia and Vietnam are also among the worldwide top producers of this type of algae however, their share of patents in much smaller.

Read more...

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THE AQUACULTURIST | July 2013

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THE AQUACULTURIST | July 2013

Event: ILDEX Myanmar 2013

ILDEX Myanmar 2013 is ready to be the only true platform for Myanmar’s fast growing livestock and aquaculture market.

VNU Exhibitions Asia Pacific Co., Ltd., a leading Thai-Dutch company with the excellent expertise in the management of international trade and industrial fair, exhibition, and conference on agriculture, livestock, and aquaculture, has launched a kick off of ILDEX Myanmar 2013 in 2 cities; Yangon and Mandalay. ILDEX Myanmar 2013 will take place between September 12 -14, 2013, Tatmadaw Exhibition Hall, Yangon, Myanmar.

ILDEX Myanmar is the very first and foremost trade show dedicated to livestock. It has therefore been arranged for the first time ever in 2012.

The results were very fruitful in many aspects. As the true pioneer in the country, ILDEX Myanmar has been appreciated by the locals, and all of the livestock industry professionals are looking forward to joining ILDEX Myanmar 2013 which will be more enhanced and results-oriented, gearing towards more technology transfer for effective production, catering to the country’s needs.

Myanmar’s government has established economic zone to stimulate substantial exports such as agricultural products and refrigerated and frozen fish. The Myanmar’s Open Door Policy enables the country to be strategic hub linking South Asia, ASEAN, and China. This scheme leads to regional economic development.

Myanmar’s economic structure depends on agricultural sector, contributing 44% with a promising growth after the government provides concession of farming area to foreign investors, resulting in an increase on needs for farming machinery in Myanmar’s. With 10% ratio in Myanmar’s agricultural sector, the government aim to expand domestic livestock and aquaculture markets into international markets, hence the developmental policy has been well planned and seriously analyzed by the government focusing on increasing the volume of meat and fish production, promoting aquaculture, breeding, processing, and marketing which will be increasing the country’s figures in exports.

With its advantage ingeography and natural resources, only trading with India and China can be considered Myanmar trading with half-the-world population, approximately 2.5 billion people. Otherwise, if either China or India paid no interest in trading with Myanmar, other countries would soon benefit from such matter greatly.

ILDEX Myanmar 2012 introduced leading trade partners from several countries such as Thailand, Vietnam, Indonesia, and India to display their innovation, know-how, and knowledge on livestock and aquaculture development in the forms of new technology, seminars and trainings, and business talks to broaden visions, and increase investment and business opportunities in Myanmar.

Apart from professional management, the key factors of ILDEX Myanmar’s success are efficient cooperation and support from government, and private sectors for example; Myanmar Fisheries Federation, Myanmar Livestock Federation, the International Trade Exhibition & Seminar of Livestock and Fishery Technology (VIV).

By such great support and collaboration, ILDEX Myanmar thus becomes the only national knowledge and technological hub in livestock industry, dairy product, and aquaculture, in relation to the finite needs of local farmers and organisation.

For space and sponsor booking, please visit www.ILDEX.com

Aquaculturists prepare for typhoon in Taiwan

Aquaculturists in Taiwan are preparing for the arrival of Typhoon Soulik by removing fish from ponds in case of flooding.

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THE AQUACULTURIST | July 2013

The aquaculture and agriculture industries are often the worst hit by typhoons so they are taking steps to minimise the impact. Farmers have harvested crops earlier than planned.

In 2009, a Typhoon Morak devastated the country's aquaculture industry, causing more than NT$4.1 billion in losses. One of the major problems was ponds being filled with mud which killed the fish and was time consuming to remove.

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Typhoon Soulik has been downgraded to a medium-force typhoon but transport has already been disrupted.

People have been stocking up on food and have been advised to prepare to stay inside for up to 24 hours.

Watch a BBC report...

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On July 2, 2013, fish oil refining company FF Skagen, based in Denmark, was charged, along with two other companies, of illegally blending feed grade fish oil with technical grade fish oil and selling this as feed grade oil for use in fish feeds.

IFFO understands that the technical grade fish oil which was blended with the feed grade oil had been derived from the distillation process to produce fish oil concentrates for the human nutraceutical market, such as the production of capsules.

Depending on the concentration method used, technical oils may contain ethyl esters of the fish oil, urea and alcohol (ethanol), which are not inherently toxic, although under the precautionary principle are deemed as unfit for consumption in the EU. Under EU regulations these by-products of the distillation process are deemed unfit for use for food or feed purposes and therefore must be used for technical purposes only (bio-fuel, paints, leather treatment etc). Their inclusion in fish feed is not considered to have posed a health risk to either the fish or the final consumer of the fish, though it is illegal under EU law.

The board of directors of Skagen are co-operating fully with the authorities and have dismissed the managing director following this incident.

FF Skagen are members of IFFO and the factory implicated in this practice had been certified under the IFFO standard for Responsible Supply of fishmeal and fish oil. As a consequence of these matters the certification body of the IFFO RS standard for the factory, SAI, has suspended the factory certification and is undertaking a full review of the company’s practices and procedures.

FF Skagen has posted more information on its website.

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15/07/13: Feed mill in Ghana opens; Alltech and Japanese University collaborate; veg and aquaculture

A $5 million feed mill has been opened in Ghana. The Israeli mill, Raanan Fish Feed West Africa in Prampram has a capacity of 24,000 metric tonnes. The mill is the fits in West Africa to apply the technology for floating extruded food to tilapia and catfish.

Seventy percent of the food is sourced locally with the remaining 30 percent imported from Israel.

The company has also set up an aquaculture training centre with the government in the Ashanti region.

A $5 million fish feed mill with an installed capacity of 24,000 metric tonnes has been inaugurated at Prampram, near Tema in Ghana, to help boost the aquaculture sector of the country.

The Israeli mill, Raanan Fish Feed West Africa, is the first in West Africa to apply the technology of producing floating extruded fish feed for tilapia and catfish.

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THE AQUACULTURIST | July 2013

It is currently producing between 1,000 and 1,400 tonnes of feed every month for both the local and the export markets.

Raanan sources 70 per cent of its raw materials locally, with the remaining 30 per cent, mainly vitamins and premixes, being imported from Israel - See more at: http://www.ghanabusinessnews.com/2013/07/15/israelifirm-builds-5m-fish-feed-mill-in-ghana/#sthash.12JQokS4.dpuf A $5 million fish feed mill with an installed capacity of 24,000 metric tonnes has been inaugurated at Prampram, near Tema in Ghana, to help boost the aquaculture sector of the country.

The Israeli mill, Raanan Fish Feed West Africa, is the first in West Africa to apply the technology of producing floating extruded fish feed for tilapia and catfish.

It is currently producing between 1,000 and 1,400 tonnes of feed every month for both the local and the export markets.

Raanan sources 70 per cent of its raw materials locally, with the remaining 30 per cent, mainly vitamins and premixes, being imported from Israel - See more at: http://www.ghanabusinessnews.com/2013/07/15/israelifirm-builds-5m-fish-feed-mill-in-ghana/#sthash.12JQokS4.dpuf A $5 million fish feed mill with an installed capacity of 24,000 metric tonnes has been inaugurated at Prampram, near Tema in Ghana, to help boost the aquaculture sector of the country.

The Israeli mill, Raanan Fish Feed West Africa, is the first in West Africa to apply the technology of producing floating extruded fish feed for tilapia and catfish.

It is currently producing between 1,000 and 1,400 tonnes of feed every month for both the local and the export markets.

Raanan sources 70 per cent of its raw materials locally, with the remaining 30 per cent, mainly vitamins and premixes, being imported from Israel Read more...

Alltech and Kochi University, Japan have signed a five-year strategic research alliance to study yellowtail and amberjack nutrition.

“Alltech has been successfully partnering with top academic institutions in the form of research alliances throughout the world with the common goal of finding long-term solutions to the key issues facing our industry. We are very excited to work with Kochi University in researching natural ways of increasing production efficiency in the aquaculture sector, particularly since aquaculture is one of the most promising industries for growth as we look to feed an increasing global population,” said Dr Karl Dawson, chief research officer, Alltech.

Read more...

We all know that eating vegetables helps you grow up big and strong (thanks mum and dad for that advice) but now veg could be used to help the Australian aquaculture industry grow up healthily.

The vegetable industry is currently considering research that would see vegetables used to feed insects for the production of high protein fish food for use in aquaculture.

“Insects are a high quality, high yield and sustainable alternative to fishmeal, which is currently used to feed farmed fish. 2.2kg of vegetables can produce 1kg of insects such as Black Soldier Flies, which are around 42 per cent high quality protein and a viable alternative to fish-meal,” said Kurt Hermann, AUSVEG spokesperson.

“Feeding fish using vegetables may prove to be an excellent revenue stream for growers. This issue is no drop in the ocean, with approximately 25 per cent of vegetables produced in Australia going to waste at a cost to growers of around $155 million annually,” Mr Hermann.

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THE AQUACULTURIST | July 2013

AUSVEG is Australia’s leading horticulture body representing 9,000 vegetable and potato growers.

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“Australian vegetable growers are producing more than 277,000 tonnes of excess product each year, which according to this new research can help to provide the local aquaculture industry with a much needed, sustainable food source,” said Mr Hermann.

With falling wild catches and increasing demand for seafood, it is predicted that Australian aquaculture will need to double its production by 2020 to meet projected increases in demand.

“This is exciting research with the potential to not only assist Australian aquaculture, but help secure the future of Australian vegetable growers by using vegetables that would otherwise go to waste. Improving efficiencies in such a manner will be essential for food security, as the global population heads towards a projected nine billion by 2050.”

Read more...

Event: Korean involvement in World Aquaculture Adelaide

With the next World Aquaculture Conferences being in Adelaide, Australia in June 2014 and the following one on Jeju Island, Korea in 2015, it is fitting that there is increased contact and communication between aquaculture participants in both countries.

World Aquaculture Adelaide 2014 Chairman, Dr Graham Mair said “there are some real opportunities for collaboration and to build a strong partnership with Korea. We welcome the chance to develop and build a strong link between Australian and Korean aquaculturists and researchers. This will strengthen conference sessions in both countries and in particular in the areas of abalone and tuna.”

“Korea is recognised as a leading aquaculture nation in high value aquaculture products and Australia has much to learn from our regional neighbours," said Dr Mair.

Last year the Australian Abalone Growers Association (AAGA) sent a delegation of Australia growers to Korea with the support of the Australian Seafood CRC. This year AAGA received a grant from the Australia-Korea Foundation (AKF), which will allow both countries to further build on the relationship. The grant for ‘Fostering aquaculture networks, collaboration and investment between Korea and Australia’ will enable Korean industry groups (targeting abalone and future tuna farmers) to visit Australia and the World Aquaculture Adelaide Conference (WAA14).

Dan Machin, on behalf of AAGA, said "it is a great privilege to be awarded this grant, which will significantly assist us in building stronger ties with Korea through reciprocal business and research relationships. We learnt a lot from our visit to Korea last year and have been able to advance our industry through greater knowledge of the technology available in Korea.

We will look forward to hosting the Koreans next year."

Steven Clarke, Chair of WAA14’s internal China-Asia Participation committee and Science Initiatives Leader for the South Australian Research and Development Institute, said ”I am delighted in that we will be able to increase the interaction between Australian and Korean industry representatives. The Korean delegation’s visit to South Australia and the WAA14 conference and trade show in Adelaide is warmly welcomed.”

The World Aquaculture Adelaide Conference websites are now open at www.was.org and www.aquaculture.org.au for submission of abstracts and registrations.

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THE AQUACULTURIST | July 2013

South Australia is proud to be hosting World Aquaculture for the first time in this continent since 1999. This annual event organised by the World Aquaculture Society incorporates the biennial Australasian Aquaculture Conference and Trade Show.

‘Skretting’ World Aquaculture Adelaide is an opportunity for the international aquaculture community to present their research/work, exchange ideas and discuss a vision for the future of the aquaculture industry as they focus on the theme of ‘Create, Nurture, Grow', reflecting the dynamic nature of aquaculture development in the region.

16/07/13: FAO talk on aquaculture and food security; microalage and aquafeed; Canadian aquaculture industry welcomes new fisheries minister

We have an audio treat for you this morning. Dr Rohana Subasinghe, senior aquaculture officer, Fisheries and Aquaculture Department, FAO chairs a round table discussion on the role of aquaculture in food security at the Center for Strategic and International Studies, Washington, USA. Topics include the growing middle class and the price of farmed fish and seafood.

Listen here...

This article looks at how photobioreactors can be used to produce microalgae for use in aquafeeds.

IGV Biotech, Germany has received money from Deutsche Bundesstiftung Umwelt DBU's 'Sustainable Aquaculture' fund which it has used to started operation of a photobioreactor (PBR) with 3,000 litres cultivation volume.

The efficiency of microalgae as a replacement or supplement of currently employed fish oil or fish meal will be examined in feed trials.

Read more...

The Canadian salmon farming industry has welcomed the appointment of Gail Shea as the new federal Minister of Fisheries and Oceans. Shea replaces Keith Ashfield, who stepped down from cabinet due to illness.

The Minister of Fisheries and Oceans holds lead federal responsibility for aquaculture and Canada's farmed seafood sector.

"We look forward to working in close partnership with Minister Shea to hasten the pace and broaden the reach of the economic and health benefits that flow from Canada's farmed seafood sector," said Ruth Salmon, executive director, Canadian Aquaculture Industry Alliance (CAIA). "Canada has an opportunity to lead the world as we build upon and expand a responsibly developed aquaculture industry. With the new Minister's leadership we are confident this moment can be seized," said Salmon.

“We wish Mr Ashfield a speedy recovery and welcome Minister Shea back to the Fisheries portfolio,” said Mary Ellen Walling, executive director, BC Salmon Farmers Association (BCSFA).

“We have been doing a lot of work with the Federal Government in recent months and we’re pleased that someone with Minister Shea’s experience and familiarity with the Fisheries portfolio will be taking over to ensure a smooth transition from one minister to the next.”

The BCSFA and the CAIA are working with the Federal Government on a number of issues relating to our industry’s change from Provincial to Federal oversight, including work on the development of an Aquaculture Act. “We developed an excellent working relationship with Minister Shea when she held the portfolio from 2008 to 2011,” said Walling, “and we look forward to that relationship continuing into the future.”

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THE AQUACULTURIST | July 2013

Event: Breizh Algae Tour

Olmix, France is organising a tour to discover the richness of algae of Brittany and the Olmix facilities to convert them in natural solution for animal health, nutrition and nutraceutic.

This tour called 'Breizh Algae Tour' will take place September 8-11, 2013.

It will start from Paris, France between and will then take the participants to northern part of Brittany for a tour of the historical heart of algae scientific knowledge, onsite view of different modes of algae harvesting, visit of the first algae bio-refinery in the world, professional visits and a trip to the international livestock trade fair (SPACE - Rennes).

More information...

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17/07/13: Aquaculture may benefit from water mold genome study; Piscine Reovirus in salmon; UK seahorses under threat

An Oregon State University scientist and partners borrowed technology from the Human Genome Project to more clearly identify the genes used by a type of water mold that attacks fish and causes millions of dollars in losses to the aquaculture industry each year.

Researchers compared the fish and plant pathogens to clearly identify the genes involved. By better understanding how these pathogens invade animals, the aquaculture industry can develop more effective control methods, such as improved vaccines and fungicides, researchers said.

The water mold belongs to a group of more than 500 species of funguslike microorganisms called 'oomycetes' that reproduce both sexually and asexually. Oomycetes, close relatives of seaweeds such as kelp, are serious pathogens of salmon and other fish. This is a particular problem in regions of the world where trout and salmon are raised, including the Pacific Northwest, Scotland and Chile.

Read more...

The Virology Journal has published a report into Piscine Reovirus (RPV).

The recently discovered virus is ubiquitous among fish on Norwegian salmon farms and is the likely cause of heart and skeletal muscle inflammation (HSMI).

HSMI has can significant economic consequences on Atlantic salmon farms. The nucleotide sequence data available for PRV are limited, and there is no genetic information on this virus outside of Norway and none from wild fish.

The research concluded that PRV represents a new genus in family Reoviridae and its genome segment S1 sequences group it into two separate sub-genotypes.

Read more...

UK seahorses are in danger of dying out reports the Telegraph. The habitat of Britain's largest seahorse colony in Studland Bay is being destroyed by boats anchoring in the eel-grass.

According to the Seahorse Trust, five years ago marine experts recorded 40 individual spiny seahorses at Studland and one pair of the short-snouted species. However, since then numbers have fallen steadily, with only five spotted 12 months ago and none at all this year.

The September/October 2013 issue of International Aquafeed will include a feature on diets for seahorses.

Read more...

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THE AQUACULTURIST | July 2013

Event: Latin American and Caribbean Aquaculture (LACQUA13)

The IV Conference of Latin America Native Fish Species Aquaculture, the Latin American and Caribbean Aquaculture (LACQUA13), the XIX Aquaculture Day of the Universidad de los Llanos and the VI Aquaculture Forum in Villavicencio will bring together in Colombia aquaculture farmers, entrepreneurs and experts of the entire Latin American region and the World.

The Conference of Latin American Native Fish Species Aquaculture on its 4th edition will be congregate fish farmers, entrepreneurs and experts of Latin America and the World. This event will allow participants to share scientific advances, latest technologies, research results as well as obtain an overview of the actual situation and challenges of the Latin American aquaculture.

The organising team, headed by the Universidad de los Llanos with the support of the Latin American and Caribbean Chapter of the World Aquaculture Society (LACC-WAS) expects more than 600 professionals of the aquaculture sector to be present in the meeting in Villavicencio.

The participants will be able to attend several key note lectures offered by well renown experts from around the world, as well as exchange research ideas and analyze business options of an important array of worldwide companies that will be present. In this opportunity LACC-WAS will participate in the event presenting the event LACQUA. The World Aquaculture Society (WAS) organises several events worldwide. LACQUA13 will be the first event of its type in the Latin American and the Caribbean region.

“We have been working hard to bring presenters that could offer the participants a general overview of key subjects that need attention on the aquaculture sector. Some of these topics are physiology, nutrition, endocrinology and toxicology, as well as nutrition and feeding, genetics and breeding, aquatic health, animal welfare, water quality and sustainable production systems. This event will also focus on important topics for the productive sector as processing, value added process, marketing and associativity” commented the team of organisers from the Universidad de los Llanos.

The organising committee will like to invite all the aquaculturist of the region to participate in the series of activities that conform the event, which goal is to offer possible solutions to the problems that the sector is experiencing as well as to promote the sharing of knowledge on the culture of fish native species and other species of economic relevance as tilapia, trout, shrimp, among others. The deadline to submit an abstract for the event has been extended until July 29, 2013.

For more information and to register to participate please visit the webpage: www.was.org and www.conferenciapecesnativos2013.com

18/07/13: EU Commission label guide; monitoring capture fisheries in the Mekong US uni supports small-scale aquaculture

The EU Commission has introduced new guidelines on labelling for fish and aquaculture products in the EU to help consumers make informed decisions on the food they eat.

Labels must already include details of where the fish was caught, by whom and how it was produced. As of 13th December 2013, labels will have to include date of minimum durability and whether it has been defrosted or not.

For those with industry knowledge, there will also now be an obligation to display the scientific name of the product, a more specific description of where it was caught, and details of the fishing gear used.

Read more...

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THE AQUACULTURIST | July 2013

WorldFish Center has been monitoring the in the Lower Mekong Basin for for two years.

Despite their importance to the region, the different values that fish contribute to income, and the relative role of fish resources in rural livelihoods and welfare have never been fully quantified.

In the absence of a solid estimate of the total economic value of these fisheries, their importance remains very poorly recognised by institutions and in development plans, which hampers rural development.

The research project ‘Assessing economic and welfare values of fish in the Lower Mekong Basin’ was launched in response to these issues, and the results from its second year of operation were presented at an annual workshop in Phnom Penh, Cambodia, on 28 June.

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“What makes this project unique is that in the past socio-economists in fisheries tended to study the fishery sector, while socio-economists in rural development would rather focus on the agriculture sector. Noone looked at agriculture and fisheries together and studied the relative weight of fish in rural livelihoods,” said Alan Brooks, director, WorldFish Greater Mekong Regional Office.

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Virginia State University, USA got involved with small-scale fish production at its annual Fish School event.

The project included free tutorial for farmers on how to use fish farming as a part of their business model or a personal form of sustainability.

The event is designed to give people a chance to learn about aquaculture in a way that isn’t commonly offered.

Read more...

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Sustainable Fisheries Partnership (SFP) has announced the launch of a South East Asia Fishery Improvement Project (FIP) aimed at improving the fisheries that supply fishmeal to aquaculture feeds in Asia. The announcement was made at a meeting of the Asia Sustainable Fishmeal Roundtable in Bangkok.

The FIP will consist of four separate projects, two in Vietnam and two in Thailand. The Vietnamese FIPs are based in Ben Tre and Kien Giang, the two projects in Thailand will be announced later in the year. The projects will consist of groups of industry and government stakeholders that will:

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4. Publicly report on progress It is likely that the most pressing improvement needs at the start of the project will be generating data concerning the state of fish stocks, volumes of fish landings, by-catch issues and establishing other important facts about the fisheries. The project will be closely coordinated with the work of the UN Food and Agriculture Organisation that is conducting a program of work on reducing the by-catch of juvenile fish in trawl fisheries in South East Asia (called the REBYCII program).

The project is being actively supported by companies within the supply chain for farmed seafood including retailers, processors, aquaculture producers and feed manufacturers. These companies include: Aldi, Asda Walmart, Coop, Lyons, Marks & Spencers, Morrisons, Sainsbury, Seachill Icelandic and Thai Union,

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Companies that are supporting SFP in this work have committed to: · Ask suppliers of aquaculture products to identify the species of fish used in feeds along with locations where the fish were caught. · Actively communicate throughout the supply chain the need for fishmeal used in aquaculture feed to be derived from sustainable sources · Give direct support to Fishery Improvement Projects that have been created to improve fisheries that generate fishmeal for aquaculture feeds Commenting on the launch of the project, Duncan Leadbitter, technical director, SFP, said, “The sustainability of aquaculture is crucially dependent on the good management of fisheries that provide fishmeal for feed.

This project is intended to work with South East Asian fisheries that catch many species in trawling gear and have challenges that need to be resolved. One common ambition will be to reduce the number of juvenile fish that are caught in the nets because this reduces the potential catch in future years.

“It is really exciting that we have the whole supply chain mobilised to tackle this issue – retailers, processors and producers from Asia, Europe and the United States. Given the very high level of industry support for this work I think we can be confident of making progress over the next five years.”

19/07/13: WorldFish launches sustainable aquaculture programme; catfish fry thrive on zooplankton; Chilean salmon farm gets BAP status WorldFish Incubator is a new programme by WorldFish Center into making sustainable aquaculture possible.

The innovative programme is designed to support investment into sustainable small and medium-sized aquaculture enterprises in developing countries. It identifies suitable projects and facilitates technical and financial assistance, offering nurturing in sustainable aquaculture through its network of contacts.

By leveraging the benefits of scale, WorldFish Incubator will help the aquaculture sector deliver on its promise to meet the growing demand for fish whilst ensuring equitable supplies and access for the poor.

More information...

Catfish fry can thrive by feeding on naturally occurring zooplankton according to research at Mississippi State University, USA. Scientists at MSU’s Thad Cochran National Warmwater Aquaculture Center compared the growth and survival of two groups of recently hatched catfish.

“Postponing the use of specially prepared commercial fry feed for six weeks showed fry are relying on naturally occurring microscopic food organisms, such as zooplankton,” said Charles Mischke, aquaculture research professor at MSU’s Delta Research and Extension Center in Stoneville told the Mississippi Business Journal.

Read more...

Nova Austral, Chile has achieved the Global Aquaculture Alliance (GAA) Best Aquaculture Practices (BAP) certification.

Nova Austral’s salmon processing plant located in Porvenir, Chile (in Region XII) earned BAP certification on June 27, 2013.

Nova Austral is one of Chile's largest salmon producers, processing more than 20,000 metric tons of Atlantic salmon annually.

More information...

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THE AQUACULTURIST | July 2013

International Aquafeed July/August 2013 online now

I am delighted to announce that the new issue of International Aquafeed is at the printer and online now.

One of my highlights of this issue was interviewing Chris Ninnes, CEO, Aquaculture Stewardship Council. I asked Chris about the need for certification scheme and the role feed manufacturers can play in responsive aquaculture.

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This issue really puts the 'international' in International Aquafeed. On the technology front, the team at Waterco, Australia writes about different types of filtration. While Mian Riaz of Texas A&M, USA writes on maintaining mineral quality in extruded feeds.

Elsewhere, we have an article on chelated minerals by Alvaro Rodriguez, Liptosa, Spain and two articles on probiotics by FF Khalil, Ahmed Ismail Mehrim and Montaha E M Hassan, Al-Mansoura University, Egypt and Dr Nguyen Nhu Tri and Prof Le Thanh Hung, Nong Lam University, Vietnam.

Our Expert Topic this issue is channel catfish. Commercial farming of this freshwater species is dominated by the USA and China. In a fascinating look back through the history books, Jim Steeby Mississippi Sate University, USA explores the origins of the commercial channel catfish industry in the USA. I hope you enjoy reading this magazine as much as we did preparing it. I would love to hear any comments of feedback so get in touch at alicen@ perendale.co.uk Click here to read the full issue.

22/07/13: USA helps Myanmar farm tilapia; cost of algae blooms in Tasmania; aquaculture in Zambia

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The USA is to provide technical assistance to help Myanmar with farming tilapia.

The US team of experts will give advice and farming technique to Myanmar to enable it to export high quality fish and fish products, the New Light of Myanmar quoted Myanmar Fisheries Federation as saying.

Read more...

Algae blooms and sewage spills have cost the Tasmanian aquaculture and fishing industries AU$25 million according to a review by the Department of Primary Industries, Parks, Water and Environment (DPIPWE).

Fishermen have called for greater spending on biosecurity measures to protect the future of Tasmanian aquaculture. At present around $300 thousand dollars is spent on testing fish for the aquaculture industry, but fishermen say that needs to be upgraded to $2 million reports ABC. Read more...

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This article gives a quick overview of on the role of aquaculture in Zambia.

Fish is a critical source of dietary protein in sub-Saharan Africa, providing an estimated 22 percent of protein intake.

In Zambia, most of the aquaculture production comes from four species of tilapia (Oreochromis andersonii, Oreochromis macrochir, Oreochromis niloticus and Tilapia rendalli). Oreochroomis niloticus is not an indigenous species but still it is cultured by most farmers because of its favourable biological characteristics.

Read more...

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THE AQUACULTURIST | July 2013

Mislabelled salmon sill on sale in the UK

The UK supermarket, Sainsbury’s, still selling mainland farmed salmon labeled as being from Skye, Lewis or Uist, almost eight weeks after apologising publicly for the ‘error’, according to the Salmon & Trout Association, Scotland (S&TA(S)).

The organisation has again called on Sainsbury’s to justify its claims of ‘responsibly sourcing’ or withdraw them.

The S&TA(S) originally made a complaint to the Advertising Standards Authority and Trading Standards on May 20, 2013. The complaint concerned claims made on Sainsbury’s ‘Taste the Difference’ Scottish salmon in relation to the geographical origins of the product and the unsubstantiated claims of “responsible management to protect and maintain the natural environment” at the farms concerned.

Almost eight weeks after Sainsbury’s admitted errors in attributing their product to the “fast flowing sea water locations around the Isles of Skye, Lewis and Uist”, Sainsbury’s in England are still stocking ‘Taste the Difference’ smoked salmon from mainland fish-farms in Argyll labeled as being from Uist, Lewis or Skye.

Hughie Campbell-Adamson, Chairman of S&TA(S), said, “The almost unbelievable state of affairs, whereby Sainsbury’s is continuing to pass off mainland farm-reared salmon as having come from the Hebrides, is bad enough.

The claims of responsible management at the farms concerned, as Sainsbury’s puts it, to protect and maintain the natural environment, need to be justified. If Sainsbury’s cannot justify their claims, then they must stop making them.”

The farms concerned are Rubha Stillaig, Meall Mhor and Tarbert South, all in Argyll.

23/07/13: Staniford to pay costs to Mainstream Canada; Cermaq sells Ewos; Nova Scotia starts aquaculture strategy

Anti-salmon farming activist Don Staniford has been ordered to pay Mainstream Canada CAD$75,000 in costs after the British Columbia Court of Appeal overturned a previous ruling in favour of Staniford.

The court unanimously ruled that lower-court judge, Justice Elaine Adair, erred when she dismissed Mainstream Canada's defamation lawsuit against Don Staniford and upheld the campaigner's defence of fair comment.

In 2011, Staniford ran an anti-salmon farming campaign which included mimicking cigarette packages with warnings like "Salmon Farming Kills Like Smoking."

"It is my opinion that the facts upon which Mr Staniford's defamatory comments were based were not all notorious, contained in the defamatory publications or sufficiently referenced to be contained in other specified documents," said Justice David Tysoe.

The Court of Appeal granted Mainstream Canada special costs based on the activist's behaviour during the trial.

"The appropriate way to punish Mr Staniford for his reprehensible conduct in the litigation is to award Mainstream special costs against him," wrote Tysoe in the judgment handed down on July 22, 2013.

More information...

Cermaq has entered into a definitive agreement for the sale of its EWOS business to Altor Fund III GP Limited and Bain Capital Europe, LLP (collectively referred to as Altor and Bain Capital). The purchaser is a Norwegian company established by funds advised by Altor and Bain Capital for this purpose.

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THE AQUACULTURIST | July 2013 ROLL RE-WORKING

The transaction is structured as a sale and purchase of shares in certain Cermaq subsidiaries and certain assets and liabilities thereof. The aggregate agreed consideration implies an enterprise value of EWOS of NOK 6.5 billion, and will enable Cermaq to free up significant funds.

Such funds will be used to reduce debt to ensure a continued solid capital structure and compliance with all financing commitments for the remaining operations, and to realize an extraordinary dividend to the shareholders. Subject to completion of the transaction, the company expects an extraordinary distribution to Cermaq's shareholders of around NOK 4.5 - 5.0 billion, or between NOK 48 and NOK 54 per share.

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The government of Nova Scotia, Canada is seeking feedback from communities in the first step in developing an aquaculture strategy. The project is set to take 18 months before it is submitted to the government.

A draft will be released to the public before it is submitted in summer 2014.

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24/07/13: International Sturgeon Symposium; milkfish aquaculture in Kiribati; Alaskan salmon standoff; aquaculture in Fiji

Not all caviar is created equal. That's one of the messages from the 7th International Symposium on Sturgeon held in Canada this week.

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Mislabeling and confusing product names means that snail and lobster egg, herring and even seaweed have all been masquerading as caviar.

The Vancouver Aquarium has been blogging about the show and has posted a range of articles.

Read more...

A Taiwanese technical mission is helping with milkfish aquaculture in Kiribati.

The South Pacific nation will become the fourth country to raise the species, following Taiwan, the Philippines and Indonesia.

Read more...

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Alaskan fishermen and miners are at loggerheads over plans to expand a gold mine in the state. The fishermen are concerned that the mine risks poisoning the waters where Pacific salmon spawn.

If the numbers of salmon reaching the spawning grounds goes down, fishing permits are suspended.

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Fiji's aquaculture is already worth several millions of dollars and its biggest contributors are pearl, freshwater prawn, tilapia fish, and seaweed.

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New! IAF article: Maintaining ingredient quality in extruded feeds

In this article from International Aquafeed July/August 2013, Mian Riaz, Texas A&M University, USA, looks at the impact of extrusion on finished feed quality.

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Extrusion processing using a combination of moisture, pressure, temperature and mechanical shear, is been used in the feed industry. It results in physical and chemical changes such as ingredient particle size reduction, starch gelatinization and inactivation of enzymes. Mild extrusion processing usually enhances the digestibility of plant proteins.

Click to read the full article.

25/07/13: Tracking chinnock salmon; LED nets warn sea turtles; sunburn protection from salmon

Ever had the feeling you are being watched? Usually we dismiss such feeling as paranoia, but for the chinnock salmon there's some truth behind the feeling.

Researchers at Project Watershed in collaboration with Fisheries and Oceans Canada, Puntledge River Hatchery have placed tracking devices on salmon to track their homing behaviour.

The objective of the study is to determine if a group of summer chinook salmon, which has imprinted in Comox Lake as juveniles, has greater success in reaching the lake as adults, compared to a control group which has been released directly to the river from the hatchery.

Read more...

Glow in the dark fishing nets have been trialled in California, USA in a bid to stop sea turtles getting tangled up. The nets have been fitted with LED lights which warn passing turtles, and other animals, to steer clear.

Previous research has shown that sea turtles can see light in the UV range but certain economically-important fish species can't.

With this in mind, researchers in Baja, California illuminated gill nets with battery-powered UV LED lights spaced at five-metre intervals along the net. Around 40 percent fewer turtles interacted with the LED net than a control net with LEDs turned off.

Could this technology applied to aquaculture?

Read more...

Another reason to eat salmon! Research at Manchester University, UK, has concluded that the long chain omega-3s found in oily fish such as salmon can protect against sunburn.

Read more...

BC's salmon farmers moving ahead with recommendations of Cohen Commission

In a follow-up to the Cohen Commission recommendations, the BC Salmon Farmers Association (BCSFA) has continued work on gathering additional scientific evidence to further demonstrate that fish farms do not harm Fraser River Sockeye.

In his final report, released October 31, 2012, Justice Cohen found that there was not enough evidence to conclusively prove that fish farms were not impacting Fraser River sockeye. Immediately following the release of the report, the BCSFA and its members issued a statement supporting the recommendations.

One of those recommendations referred to net-pen salmon farms in the Discovery Islands-area, “If at any time between now and September 30, 2020, the minister of fisheries and oceans determines that net-pen salmon farms in the Discovery Islands pose more than a minimal risk of serious harm to the health of migrating Fraser River sockeye salmon, he or she should promptly order that those salmon farms cease operations.”

“What Justice Cohen found was an information gap in wild fish knowledge,” said Provincial Fish Pathologist, Dr Gary Marty.

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THE AQUACULTURIST | July 2013

“We don’t know the potential interactions of all the variables that might be impacting wild fish health. We have some knowledge of ocean temperature, salinity, plankton blooms, microbes, and fish farms, but if these factors are studied only in isolation, we might misunderstand the big picture.

The challenge is that we don’t yet have all the pieces.”

As one of the first steps, the BCSFA organised a workshop, entitled Managing Risk and Defining Research Priorities. The purpose was to bring together a group of scientists, fisheries experts, and fish health specialists and veterinarians to objectively review risk management approaches and define research priorities for salmon aquaculture.

“Originally, our goal was to come away with a list of research priorities – an idea of where the knowledge gap is in terms of wild fish health and what research should be done,” said Mary Ellen Walling, executive director, BCSFA. “What we found was that there was a knowledge gap in terms of what research is currently being done on wild fish, who is doing the research and what it’s focusing on. There are a number of groups doing fish health research and they don’t always talk to each other, so there’s no database of that information.”

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The next steps from the workshop will be to identify the current research that is in progress and bring it together for a second workshop, “Wild Salmon: Addressing the Knowledge Gap”, planned for September.

“Our goal with all of this work to have a good picture of both wild and farmed fish health,” said Walling. “The more we know, the better informed our farm management will be.”

A summary report on the first workshop has been posted to the BCSFA website: http://www.salmonfarmers.org/sites/default/files/managing_risk_and_defining_research_priorities.pdf The BCSFA represents salmon farm companies and those who supply services and supplies to the industry. Salmon-farming provides for 6,000 direct and indirect jobs while contributing $800-million to the provincial economy each year.

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26/07/13: Water guns to fight Asian carp; the benefits of good fisheries policies; cash of Maine aquaculture firms; USA halts Marine Harvest Chile salmon imports

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Water guns and pheromones are the new weapons in the fight against Asia carp in the Great Lakes and the Mississippi river system in the USA. The new tactics are detailed in the president's 2013 Asian carp control plan.

The fish appeared in the river after escaping from flooded aquaculture ponds in the south. Since then, the fish have disrupted native populations and the delicate balance of aquatic ecosystems.

Read more...

Good fisheries policies help the poor, says Steven Hall of WorldFish. This article looks at why fisheries policy makers and how they ''get it wrong".

Read more...

The Maine Technology Institute (MTI), USA has awarded grants and loans totaling US$1.66 million to 27 Maine companies.

The cash, which ranges from $1,116 to nearly $500,000, will help companies across a range of sectors, including aquaculture, develop innovative products.

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THE AQUACULTURIST | July 2013

One of the aquaculture beneficiaries is Maine Coast Sea Vegetables, Franklin which received $19,842 to help develop seeded nets and ropes for seaweed aquaculture.

Read more...

The USA has halted imports of salmon from Marine Harvest's Chilean farms due to contamination.

The FDA banned imports following the discovery of the carcinogenic chemical, crystal violet, in a shipment of salmon to the USA. Marine Harvest has launched an official investigation into the source of the crystal violet.

Read more...

New! IAF article: Fine particle filtration in aquaculture

Katie Adema, journalist, Waterco Ltd, Australia, gives a comprehensive overview of fine particle filtration in aquaculture.

Aquaculture is the fastest growing animal production industry in the world; almost every region is experiencing rapid growth in the farming of fish, molluscs, crustaceans and aquatic plants.

Worth over AUD$200 billion globally, the aquaculture industry has been growing at a faster rate than the world’s population for the past five decades, resulting in a very competitive marketplace today.

Such dramatic growth in the aquaculture industry has driven trends in filtration and oxygenation techniques forward to focus on high efficiency systems which offer fine particle filtration. This is due to the realisation that systems chosen purely for their low cost may not necessarily deliver profitable results. The health and growth of your fish depend greatly upon the filtration and oxygenation of the water in which they live. Therefore it is vital you invest in a quality system so you can produce large, healthy fish as quickly as possible to increase your profit margin.

Click to read the full article.

29/07/13: Tackling early onset sexual maturity in cod; farming beluga sturgeon; new home for Malta's aquaculture centre?

Early onset of sexual maturity is a problem in cod aquaculture because of negative effects on growth, feed conversion and health. Farmed cod that escape can also affect the genes of wild fish.

Research fellow Adrijana Skugor of the food research institute Nofima has examined biological mechanisms that control the development of the sex organs in cod for her doctorate.

She has studied both individual genes and the whole cod genome to obtain more information about how the germ cells of the embryo develop into eggs and sperm.

Skugor has previously studied zebrafish and has made use of the knowledge she gained then. In zebrafish, the dead end gene (DnD) is necessary for sexual maturity, and Skugor has now been studying the significance of this gene in Atlantic cod.

She injected cod embryos with a molecule that blocks DnD and found that inactivation of the gene affected the development of germ cells also in cod. In addition, Skugor used micro array screening to study the effects of DnD inactivation in a wider context.

Read more...

Several species dominate world aquaculture production. We read stories on salmon, trout, shrimp and tilapia on an almost daily basis. Of course the species deserve the attention they receive but once in a while it's refreshing to hear about something different.

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THE AQUACULTURIST | July 2013

Mark Zaslavsky has spent a decade trying to become the first US aquaculture company to sell farm-raised beluga sturgeon.

In 2003 Zaslavsky's shipped brood fish from Germany to his farm Sturgeon AquaFarms, Florida, USA. Beluga sturgeon is the largest species of sturgeon, reaching 20 feet in length and a ton in weight in the wild. However, they are difficult to grow in the captivity as it takes 12 years for them to reach sexual maturity.

The next challenge for Zaslavsky is to get permission from the federal government to sell his decade-old fish.

Read more...

Malta's National Aquaculture Centre may be moving home as government plans for a new site have been welcomed by various interested parties.

Since 1988, the centre has been housed in the historic Fort San Lucian in Marsaxlokk.

The Fondazzjoni Wirt Artna (the Maltese heritage trust) has supported the government's plans saying that relocation of Malta's aquaculture centre should be a top priority. The foundation has also suggested restoring a tower on the site and opening the fort as a tourist attraction.

The fort was originally built by the Order of St John in 1610 to ward off corsair attacks.

Read more...

New! IAF article: Chelated minerals in aquafeeds

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Alvaro Rodriquez of Liptosa, Spain, writes about the importance of chelated mineral in aquafeeds.

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30/07/2013: IRSC students receive aquaculture training; New Brunswick oyster farming; BFAR to register 300,000 fishermen

Harbor Branch Oceanographic Institute at Florida Atlantic University (HBOI-FAU), USA and Indian River State College (IRSC), USA, are offering an educational programme that will offer college students hands-on training in fish, molluscan and crustacean aquaculture in a cutting-edge facility.

HBOI has the largest marine food fish water reuse research facility in the southeast, as well as research culture facilities for shellfish.

Read more...

The Canadian government is investing CAD$400,000 in a new program to accelerate the development of the country's oyster aquaculture industry.

The new programme is intended to help expand the industry, contribute to the economic diversification of coastal regions and stimulate long-term job creation.

Read more...

Some 300,000 fishermen stand to benefit from the National Program for Municipal Fisherfolk Registration (FishR) in Eastern Visayas, the Philippines.

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During a recent FishR launch, Atty. Asis G. Perez, director, Bureau of Fisheries and Aquatic Resources (BFAR), Philippines, announced that the program will aim to fast-track, enhance and complete the nationwide registration as required under the Fisheries Code of 1998.

According to the Philippine Information Agency, upon completion of the program, the fisheries bureau will establish a national database, aiding local municipalities in managing, regulating, conserving and protecting fishery resources and establishing a comprehensive fishery information system.

Read more...

New! IAF article: FOCUS | Probiotics - Effect of probiotic, Hydroyeast Aquaculture as growth promoter for adult Nile tilapia

In this article, FF Khalil, Ahmed Ismail Mehrim and Montaha E M Hassan of Al-Mansoura University, Egypt, discuss the effect of probiotic, Hydroyeast Aquaculture as growth promoter for adult Nile tilapia.

The use of probiotics for farm animals has increased considerably over the last 15 years. Once ingested the probiotic microorganisms can modulate the balance and activities of the gastrointestinal microbiota whose role is fundamental to gut homestasis.

Click to read the full article.

Event: Aquarama and Pet Asia 2013 report

How does one gauge the success of a show? Is it determined by the number of people who pass through the doors...or is it based on the amount of business done by the exhibitors? Whichever criterion is chosen, there can be no doubt that Aquarama and Pet Asia 2013 (co-held at the Sands Expo and Convention Centre, Singapore, May 30 - June 2, 2013) were a resounding success according to event organisers.

While the number of countries represented by the exhibitors and trade visitors both remained virtually the same as in 2011 (21 and 72, respectively), no fewer than 55 percent of the exhibitors and 56 percent of the trade visitors still came from outside Singapore. Even more encouraging was the fact that attendance figures for, both trade and public visitors, showed increases of 8.3 percent and 16 percent, respectively. These are uplifting statistics for the organisers in view of the ongoing economic crisis in Europe and the US. At a time when even the major pet industry shows are experiencing a drop in visitor numbers, or are having to adapt their frequency in tune with economic circumstances, UBM Asia Trade Fairs Pte. Ltd. has good reason to take heart, not just from the above statistics, but also from the feedback received from visitors and exhibitors alike.

For instance, one first-time exhibitor from Italy ranked the show as "Excellent" and immediately reserved a bigger booth for 2015. Another, this time a well-established and respected German Aquarama exhibitor, claimed – one full day before the end of the show – that the 2011 edition had been his company’s most successful Aquarama ever in terms of business done, and that the 2013 event was heading for the same outcome. A large Singaporean exhibitor who has been ever-present since the earliest days, likewise labelled this year’s edition a great success. And so on…

A recurring theme among exhibitors was that, as the crisis continues to bite in many countries, obviously affecting people’s decisions on whether or not to travel long distances at considerable expense to attend a show, those who do decide to attend have a genuine reason for doing go. Consequently, the percentage of serious buyers (as opposed to casual visitors or lookers) is much higher in times of economic difficulties. And it is this that ticked all the right boxes for the exhibitors this year. It is also this that has resulted in a large number of them already signing up for 2015.

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THE AQUACULTURIST | July 2013

This year, Aquarama and Pet Asia each had their own dedicated space, but co-located within the same halls, something that had a double positive impact. On the one hand, it gave Pet Asia its ‘independence’ and established it as an event in its own right, complete with its seminar programme, competitions and grooming, agility and obedience displays. On the other, Aquarama regained the 100 percent aquatic exclusivity that its exhibitors and traditional visitors love. The result therefore augurs well for the future of both events.

In the words of Jennifer Lee, project manager for the co-located events, "Staging Aquarama and Pet Asia 2013 has proved very challenging for the UBM team. We are therefore delighted with the positive response we’ve received from exhibitors and visitors alike, and take great encouragement from this as we begin planning for the 2015 editions."

And...speaking of 2015, the dates for Aquarama and Pet Asia have already been announced: May 28-31, 2015. The co-located exhibitions will be held, as always, in Singapore, with the venue being announced at a later date.

More information on Aquarama...

More information on Pet Asia...

Warming seas alter fish neurology: Biodiversity to disappear over the next century Climate change will see biodiversity in our seas decline massively over the next 100 years, according to scientists due to present their work to the IUPS 2013 Congress.

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It is expected that global warming will see sea temperatures rise by 2-4 degrees. This, along with rising levels of carbon dioxide, is already causing dramatic changes to the central nervous system of fish in our seas with consequences for their future survival.

Professor Goran Nilsson from the University of Oslo says, “Some fish species will do well and some will do very poorly, so we will have much less biodiversity. A few species will take over at the cost of a lot of species that will disappear.

“At just a few degrees increase in temperature you see a big increase in the resting metabolic rate. Some species are using all their capacities just to pick up oxygen and have no energy left to feed, grow or reproduce.

They are at an evolutionary dead end.

Extruders Extruder OEE for the Production of Fish Feed

“In addition, we have seen that increases in carbon dioxide levels have big impact on fish behaviour, affecting their ability to avoid predators.

Instead of shying away from the smell of a predator, the fish are attracted to it. They are also attracted to new plant smells, unusual environments, and they lose their lateralization which means it takes longer to make decisions when escaping a predator.”

Nilsson’s team identified the neurological mechanism underlying these changes in behaviour and survival. Elevated CO2 levels in sea water disrupt the function of a key brain molecule, called the GABA-A receptor.

Nilsson says, “We can cure the fish by blocking this receptor with a moderate dose of a drug called Gabazine. This can reverse the behavioral changes and the fish behave normally again. While we cannot fill the seas with Gabazine, this finding does give us some predictive power. We can now identify the animals most at risk of being affected, guiding us where to do future experiments.”

31/07/13: Worms in aquafeeds; UK jellyfish invasion; shellfish poisoning testing Worms are not an ingredient you often see listed as a feed ingredient but that might be about the change.

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THE AQUACULTURIST | July 2013

Scientists at Makerere University Agricultural Institute Kabonyolo (MUARIK), Uganda, have started rearing the earthworms for use in fish feeds.

The demand for alternative feed ingredients comes from fish farmers who argue that existing commercial feeds are too expensive.

The worms enjoy a diet of maize bran, food remains, cow dung and water and are sold in one kilo tins.

Read more...

It's not aquaculture but I really wanted to share this film and photos of jellyfish in the UK. Since the spell of warm weather, UK waters have seen a boom in the amount of these fascinating creatures.

Read more...

Neogen Europe Ltd has added to its comprehensive range of tests for the seafood industry with the introduction of rapid tests to detect the toxins that cause amnesic shellfish poisoning (ASP) and diarrhetic shellfish poisoning (DSP).

Neogen’s new Reveal® 2.0 for ASP detects ASP-causing toxins at a level of 20 parts per million (ppm), and Reveal 2.0 for DSP detects DSP-causing toxins at 160 parts per billion (ppb). Both are one-step rapid tests, and are compatible with U.S. Food and Drug Administration (FDA) and European Union Commission permitted levels.

Both new shellfish toxin tests offer easy extraction processes, meaning they are on-site field tests capable of being used on a boat, and are used with Neogen’s innovative AccuScan® Pro Reader that provides consistently accurate and reliable results.

“The combination of the new tests and test reader provide an unparalleled ease in achieving consistently accurate results when testing for these toxins,” says Steve Chambers, Neogen Europe.

“The AccuScan Pro Reader completely eliminates the variance in interpreting test results that can exist when only using a visual appraisal, especially with inexperienced testers. It also provides a very easy method of storing and analysing test results - which is becoming increasingly required as many nations move to reduce the risk posed by these shellfish toxins.”

More information...

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The Aquaculturist A regular look inside the aquaculture industry

For more information about the Aquaculturist visit: www.theaquaculturists.blogspot.com or follow the aquaculturist on twitter