The bycatch problem is particularly acute when trawl nets with small mesh sizes (smaller-than-average holes in the net material) are dragged along the bottom of the ocean in pursuit of groundfish or shrimp. Because of the small mesh size of the shrimp trawl nets, most of the fishes capture...
The bycatch problem is particularly acute when trawl nets with small mesh sizes (smaller-than-average holes in the net material) are dragged along the bottom of the ocean in pursuit of groundfish or shrimp. Because of the small mesh size of the shrimp trawl nets, most of the fishes capture...
所属专辑:托福阅读 音频列表 1 TF090-Challenge of Dendrochronology 62 2023-03 2 TF089-Examining the Problem of Bycatch 47 2023-03 3 TF088-Northwest Coast Art 29 2023-03 4 TF087-Increasing Jellyfish Populations 37 2023-03 5 TF086-Trade and Herring in Dutch Society ...
分拣渔获物需要时间,导致收获的虾变质,捕鱼时间减少。从生态学角度讲,幼鱼的高死亡率可能导致娱乐和商业物种的数量下降。墨西哥湾红鲷和大西洋海岸弱鱼也有这种影响的证据。由于虾集中的近岸地区也是许多鱼类的重要繁殖地,因此拖网捕鱼可能会对种群规模产生深远影响。一旦死亡或垂死的副渔获物返回生态系统,就会被捕食者...
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Examining the Problem of Bycatch A topic of increasing relevance to the conservation of marine life is bycatch-fish and other animals that are unintentionally caught in the process of fishing for a targeted population of fish. Bycatch is a common occurrence in longline fishing, which utilizes a ...
The bycatch problem is particularly acute when trawl nets with small mesh sizes (smaller-than-average holes in the net material) are dragged along the bottom of the ocean in pursuit of groundfish or shrimp. Because of the small mesh size of the shrimp trawl nets, most of the fishes capture...
与海洋生物保护日益相关的一个主题是副渔获物和其他动物,它们是在捕捞目标鱼类的过程中无意捕获的。副渔获物在延绳钓和拖网捕鱼中很常见,延绳钓使用长而重的鱼线,每隔一段时间放置一个带饵的钩子,而拖网捕鱼则使用沿着海底或穿过大洋中部水域拖曳的渔网(拖网)。很少有
由于虾集中的近岸地区也是许多鱼类的重要繁殖地,因此拖网捕鱼可能会对种群规模产生深远影响。一旦死亡或垂死的副渔获物返回生态系统,就会被捕食者、碎屑食草动物(以死亡的动植物为食的生物)和分解者(分解死亡或腐烂的有机物的生物)吃掉,这可能会对运动鱼、海鸟、螃蟹甚至虾的种群产生积极影响。现有证据表明,商业渔船...
由于虾集中的近岸地区也是许多鱼类的重要繁殖地,因此拖网捕鱼可能会对种群规模产生深远影响。一旦死亡或垂死的副渔获物返回生态系统,就会被捕食者、碎屑食草动物(以死亡的动植物为食的生物)和分解者(分解死亡或腐烂的有机物的生物)吃掉,这可能会对运动鱼、海鸟、螃蟹甚至虾的种群产生积极影响。现有证据表明,商业渔船...