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[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%.
Journal of Fish Diseases; The European Union puts in place a framework of measures to combat certain fish diseases effectively and to prevent their spread. Watershed Watch Salmon Society A British Columbia advocacy group for wild salmon; Wild Salmon in Trouble: The Link Between Farmed Salmon, Sea Lice and Wild Salmon - Watershed Watch Salmon ...
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. [3] [30] Sea lice migrate and latch onto the skin of wild salmon during free-swimming, planktonic nauplii and copepodid larval stages, which can persist for several days.
Lying on the beach or using a surfboard could also trigger a sea lice sting. Spots and itchy rashes typically appear within four to 24 hours after a sea lice sting.
Sea lice are copepods — a microscopic type of crustacean related to crabs, shrimp and lobsters. With nearly 15,000 identified species, the creatures are found anywhere there’s water and are a ...
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Salmon farms are an unusual, but ideal environment for the sea lice to breed. [11] 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 ...
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