They can also have an important role in the ecosystem as top predators or as indicators of overfishing.
它们无论作为顶端掠食者还是过分捕捞的指示生物都在生态系统中扮演着重要的角色。
The ecosystem appears to be a young weak one caused by overfishing, with small and low-valued fishes dominated and low ecotrophic efficiency for trophic level I.
系统受过度捕捞渔业影响很大，并存在营养级I利用效率低和渔业资源小型化、低值化等不稳定的幼态特征。
应用推荐