Bycatch often includes the catch of juveniles of important commercial fish species (cod, rockfish, red snapper, croaker, king mackerel, Spanish mackerel and weakfish) as well as sea turtles.

• 当生物资源被浪费，濒危和稀有物种受到威胁，已经被严重开发的鱼类资源进一步受到影响时，兼捕物可以成为一个严重的问题。