Causes
Excess of nutrients such as; Phosphorus, and Nitrogen from Agricultural fertilisers
Livestock manure
(effluents)
Soil Erosion
And more...
Warmer water temperatures
Stagnant water
Stratified water layers
AlgalBlooms
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Thisfactsheethasbeendevelopedaspartofour'EngagementintheScottfor CatchmentHealth'.ThisprojectissupportedthroughfundingfromtheState NaturalResourceManagement(NRM)Program.
Runoff
Big rain events
Nutrient runoff into rivers
Algae grows and blocks sunlight
Seagrasses die and stop producing oxygen
Fish Suffocate and die
Effects
Skin rashes/illness
Fish health and deaths and fishing bans
Shellfish toxicity
Seagrass smothering
Waterway system
Water pollution
Boating restrictions
And more...
Algae Bloom
Outflow
Excess Nutrient
Cycling
Hypoxic Zone (Low Oxygen)
Decomposers multiply and consume more oxygen
Phosphorus and Nitrogen released to surface
Algal mat grows larger & thicker