New York Sea Monsters: A Guide
Frankenfish
Even if the Harlem Meer does turn out to be shark-free, it has another monster to contend with, in the form of Frankenfish. Oh, what’s “Frankenfish?” Just an oxygen-breathing snakehead fish (so-called because it has… the head of a snake) that “eats frogs and crayfish and has the ability to breathe air and live for days out of water in certain conditions.”
The Department of Environmental Conservation has advised citizens, “If you catch one, DO NOT RELEASE it. Kill it immediately, freeze it and report your catch.” So.