Like the bluefish, the weakfish is a marine species that swims into the Hudson estuary when young. Also like bluefish, weakfish are active predators and popular game fish, often called sea trout. The young ones we catch are usually about six to eight inches long. Adult weakfish get much larger (up to seventeen pounds) but we are less likely to find these older fish in the Hudson.
Weakfish are silvery in color, with fine spots scattered over the upper part of their bodies. Young weakfish have a tail that is outwardly pointed like an arrowhead. As the fish gets older the tail changes shape, eventually becoming inwardly curved. The tails of weakfish we catch may be anywhere between these extremes.