Meanwhile, in Tasmania – Drag fish farm regulation into 21st century
Sea based fish farms dump tonnes of faeces into the water. Think of them as a large toilet that does not flush. I cannot think of an industry in Tasmania other than aquaculture that is allowed to dump an unlimited amount of pollution in our waterways. Not only is there no limit on the amount of faeces salmon farms can dump in coastal waters, Tasmania also lacks science-based regulations to determine which parts of our coastline are suitable for salmon farms. International research shows that if you put fish farms in bays and harbours, where the water is shallow and current speed is low, fish faeces accumulates under cages, killing everything below them. Nitrogen discharged into the water column creates risk of harmful algal blooms, like the types we have seen worsening with increased salmon farms in the Huon and D’Entrecasteaux Channel. Other countries have responded to this research by offering incentives to move farming onshore. Read the story here 12:46
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