根据这项法律,只有持证商业渔夫捕捉的非濒危品种鲨鱼的鱼鳍(白斑角鲨和大星鲨)才合法。
Under the law , only fins from non-endangered shark species ( spiny dogfish and smooth dogfish ) , lawfully caught by a licensed commercial fisherman , are exempt from the ban .