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The transfer of parasites from open-net cage salmon farming, especially sea lice, has reduced numbers of wild salmon. The European Commission (2002) concluded, "The reduction of wild salmonid abundance is also linked to other factors but there is more and more scientific evidence establishing a direct link between the number of lice-infested wild fish and the presence of cages in the same ...
Farmed salmon in open net cages can escape into wild habitats, for example, during storms. An emerging wave in aquaculture is applying the same farming methods used for salmonids to other carnivorous finfish species, such as cod, bluefin tuna, halibut, and snapper. However, this is likely to have the same environmental drawbacks as salmon farming.
Today, wild salmon are an endangered species, gone from most rivers in the U.S. There are many culprits, from polluted waterways and habitat destruction to overfishing and climate change. 3 ...
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Jack mackerel caught by a Chilean purse seiner Fishing down the food web. Overfishing is the removal of a species of fish (i.e. fishing) from a body of water at a rate greater than that the species can replenish its population naturally (i.e. the overexploitation of the fishery's existing fish stock), resulting in the species becoming increasingly underpopulated in that area.
In particular, Novogratz noted, salmon farming can be resource-intensive because salmon are carnivorous and need to be fed other fish. "It affects the greater ecosystem in a big way," she said.
Overview of farmed to wild salmon interactive effects of sea lice. Salmon Farming Problems - Coastal Alliance for Aquaculture Reform. Overview of environmental impacts of salmon farming. Fish farms drive wild salmon populations toward extinction Biology News Net. December 13, 2007.
The Patreksfjörður farmed salmon escape involved the escape of approximately 3500 farm-raised Atlantic salmon in an open fish farm on August 20, 2023, at Patreksfjörður, a village on the northwest coast of Iceland. [1] [2] The fish farm is managed by Arctic Fish, an agricultural company in Norway. Soon after the incident, Arctic Fish ...