长嘴

Sturgeons and gars are ganoid.

鲟嘴都是硬鳞。

New methods of setting nets have reduced the bycatch of dolphins but not of other species, such as billfish, turtles and sharks.

布设渔网的一些新方法已经减副捕获物海豚的捕获，但没有减其它一些生物的捕获，象嘴、海龟鲨。