by- catch向大会建议的商定要点除其他外
fisheries by-catch副渔获
by-catch composition副渔获组成
By-catch can include副渔获物可包括
composition of by-catch副渔获组成
measures to address by-catch措施包括
fisheries by-catch and discards副渔获物和抛弃物
The result showed that TanZi net with split net really reduced by-catch. On the other hand because the sloping angle of split net was too small, the ocean currents greatly affected the separating efficiency.
结果表明，分离网片能有效的减少副渔获，但由于分离网片的倾斜角过小，使海流对分离效果影响很大，导致改装后的坛子网严重减少虾产量。
参考来源 - 山东沿海坛子网鱼虾分离装置的选择性研究N（名词） unwanted fish and other sea animals caught in a fishing net along with the desired kind of fish 拖网副渔获