A young scientist has discovered a previously undescribed species of parasite that infects farmed fish and produces serious disease. Single-celled parasites of the genus Spironucleus are known to ...

Sea lice attached to the skin of a wild salmon. Salmon farms have been plagued by parasitic sea lice (Lepeophtheirus salmonis) since they were first established in Norway in the 1960s. The small ...

GRANTS PASS, Ore. – A team of Canadian scientists has found the most direct evidence yet that baby salmon pick up fatal infections of sea lice while swimming past salmon farms in British Columbia’s ...

Salmon farms help stock supermarkets but also breed parasitic sea lice that infect young wild salmon and could endanger other important ocean species such as herring, scientists said in a study ...

More than 90% of popular freshwater fish in Southern California are carrying human-infecting parasites, researchers say. This poses a significant danger for those who like to eat freshly caught ...

One year, the pinks didn't come home. In 2002, 97% of the pink salmon (Oncorhynchus gorbuscha) that were expected to swim up rivers to spawn in British Columbia's Broughton Archipelago failed to ...

VICTORIA, B.C. -- Fish farms on northern Vancouver Island are being blamed for an outbreak of bloodsucking sea lice that some say could kill more than 400 million pink salmon this summer. Indian ...

Researchers at Scripps Institution of Oceanography at UC San Diego discovered that a snail species carrying human-infecting flatworms known as trematodes is widespread in California. The scientists ...