Spots, warts, and parasites on fish can look alarming. Learn what common fish diseases look like and whether infected fish ...

Maryland has a fish problem — or rather, three fish problems. The populations of invasive blue catfish, flathead catfish, and northern snakehead are exploding in the Chesapeake Bay. Their solution? If ...

Small river dams can raise water temperatures, helping parasites spread and increasing deadly kidney disease in brown trout during summers.

FARLEY, Mo. — A company in Farley, Missouri is creating a business out of an invasive species of fish in the Platte and Missouri rivers. Missouri Coast Fisheries stumbled into their new business, ...

In a world where most freshwater fish are lucky to see a decade, one species quietly pushes past 100 and can reach 120 years or more without the usual signs of decline. That astonishing lifespan ...