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Some evidence indicates that sea lice flourishing on salmon farms can spread to nearby wild juvenile salmon and devastate these populations. [29] Sea lice, particularly L. salmonis and various Caligus species, including C. clemensi and C. rogercresseyi , can cause deadly infestations of both farm-grown and wild salmon.
The infestations of sea lice in salmon farms increases the number of lice in the rest of the surrounding water dramatically if the eggs from the gravid louse are allowed to disperse. [11] Sea lice can also attach to juvenile salmon migrating from rivers to the ocean if they pass by fish farms. [11]
[9] [10] Adult salmon may survive otherwise critical numbers of sea lice, but small, thin-skinned juvenile salmon migrating to sea are highly vulnerable. On the Pacific coast of Canada , the louse-induced mortality of pink salmon in some regions is commonly over 80%.
Scottish salmon companies are being accused of “greenwashing” tactics to cover up death rates, sea lice and chemicals use, according to an investigation into the industry.. Supermarkets ...
Sea lice 'breakthrough' for salmon farmers. Stricter rules could close salmon farms. As part of their inquiry, members of the committee visited a fish farm at Dunstaffnage near Oban for a fact ...
Sea lice are copepods — a microscopic type ... causing the larvae to sting you and inject their toxin,” is how WebMD.com explains the sea lice plan of attack. Salmon are also plagued by a type ...
[42] [43] Adult salmon may survive otherwise critical numbers of sea lice, but small, thin-skinned juvenile salmon migrating to sea are highly vulnerable. On the Pacific coast of Canada , the louse-induced mortality of pink salmon in some regions is commonly over 80%.
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 ...