UiT The Arctic University of Norway, Tromsø, Norway.
UiT The Arctic University of Norway, Tromsø, Norway; SINTEF Ocean, Trondheim, Norway.
Mar Pollut Bull. 2022 May;178:113577. doi: 10.1016/j.marpolbul.2022.113577. Epub 2022 Mar 23.
Longlining is a widely used fishing method. During longline fishing, some of the snoods connecting the hooks to the mainline are often lost at sea. Since snoods are made of nylon or polyester, lost snoods contribute to marine plastic pollution. Replacing nylon or polyester with a new material made of biodegradable plastics can potentially reduce macro- and microplastic pollution that is caused by lost snoods. In this study, we estimated the risk for snood loss in a longline fishery targeting haddock (Melanogrammus aeglefinus (Linnaeus, 1758)) and Atlantic cod (Gadus morhua (Linnaeus, 1758)) in Barents Sea. Further, we compared catch efficiency in this fishery for snoods made of biodegradable and nylon materials. No significant differences were found between the two materials. Therefore, catch efficiency does not represent a barrier for using biodegradable materials in snoods.
延绳钓是一种广泛使用的捕鱼方法。在延绳钓渔业中，一些连接鱼钩和主线的支线经常在海上丢失。由于支线是由尼龙或聚酯制成的，丢失的支线会导致海洋塑料污染。用可生物降解塑料制成的新材料替代尼龙或聚酯，可能会减少因丢失支线而造成的大塑料和微塑料污染。在这项研究中，我们估计了巴伦支海鳕鱼（Melanogrammus aeglefinus (Linnaeus, 1758)）和大西洋鳕鱼（Gadus morhua (Linnaeus, 1758)）延绳钓渔业中支线丢失的风险。此外，我们比较了这两种渔业中使用可生物降解和尼龙材料制成的支线的捕捞效率。两种材料之间没有发现显著差异。因此，捕捞效率并不是在支线中使用可生物降解材料的障碍。
