Stress Factors in Aquaculture
What is Stress ? • Stress is any condition that causes physical or mental discomfort that results in the release of stress-related hormones or results in specific physiological responses. • Stress can be physical, psychological, or environmental. • Stress can either be short and sudden, or long and chronic. • Mild, short-term stress has few serious health effects, but long-term stress or severe, short-term stress contribute to many of the illnesses and deaths in aquarium fish.
Effect of Stress on Fish’s and Shrimp’s Health • Short-term stress will cause an increase in heart rate, blood pressure, and respiration • The fish can only maintain these altered states for a short period of time and then they will adapt or the stress will become chronic. • In addition to having a negative effect on growth, reproduction, and digestion, chronic stress will also lower the ability of the immune system to respond effectively and fully. • Powered immune response is what allows parasites, bacteria, and fungi to infect a stressed fish and cause disease and death.
Stress Symptoms
White Spot Disease
Discolouration
Causes of Stress • Elevated Ammonia • Elevated Nitrate • Improper PH level • Fluctuation in Temperature • Improper Salinity • Low Oxygen level • Medication and Water treatments • Harassment from Other Fish
How To Eliminate Stress • One can limit or prevent many causes of stress. • Acute stress is more obvious and needs to be addressed very quickly. Chronic stress is often not visible. • One should maintain the Ammonia and Nitrate level in the water. • Maintain proper PH Level of the water. • Maintain the DO in the water by using good aeration technique.
Why AirOxi Tube? • AirOxi Tubeis one of the latest technologies for aquaculture aeration. • It is designed specially for commercial aquaculture and has been successfully installed in hundreds of acres of aquaculture ponds. • It has high efficiency in both salt water and fresh water. • AirOxi Tubes are made with a blend of materials that provide durability and smooth air flow.
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