...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>ICES Journal of Marine Science >Investigating the potential for a commercial fishery in the Northeast Atlantic utilizing mesopelagic species
【24h】

Investigating the potential for a commercial fishery in the Northeast Atlantic utilizing mesopelagic species

机译：利用中源型物种调查东北大西洋商业渔业的潜力

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

During three cruises in the Mid Atlantic Ridge area in 2016 and 2017, we studied the biomass of mesopelagic fish and its potential as a source of protein and oil for animal feed and human consumption. We collected samples of mesopelagic species down to a depth of 600m, studied fish behaviour, identified and quantified the species composition of the catches, analysed the chemical composition of the catch samples, and evaluated the presence of unwanted substances. Results showed that Maurolicus muelleri (Mueller's pearlside) and Benthosema glaciale (Glacier lantern fish) were the most abundant fish species in our samples and catches containing 80% fish can be a good source of protein and marine lipids including eicosapentaenoic acid (C20:5n3) and docosahexaenoic acid (C22:6n3). Unwanted substances, except for Cd and As, were present at levels far lower than the limits set by European Union regulations. However, our experiments identified challenges that may limit the efficiency of commercial operations in the Northeast Atlantic. Combined real-time optical and/or multifrequency acoustic systems will be needed to improve species identification and ensure cost-effective fishing operations. Also, selective trawls that target only fish and release unwanted species are needed to secure high-quality oils and proteins.
机译：在2016年和2017年中大西洋岭地区的三个巡航期间，我们研究了叶片尾鱼的生物量及其作为动物饲料和人类消费的蛋白质和油来源的潜力。我们将中瓣物种样品收集到600米的深度，研究和量化捕获物种组成，分析了捕获样品的化学成分，并评估了不需要的物质的存在。结果表明，Maurolicus Muelleri（Mueller的珍珠）和Benthosema冰川（冰川灯笼鱼）是我们样品中最丰富的鱼类，含有80％鱼的捕捞量可以是蛋白质和海洋脂质的良好来源，包括eicosapentaeno en酸（C20：5n3）和十二碳六烯酸（C22：6N3）。除CD和AS外，不需要的物质在远低于欧盟法规设定的限制的水平上存在。然而，我们的实验确定了可能限制东北大西洋商业运营效率的挑战。将需要组合的实时光学和/或多频声学系统来改善物种识别并确保具有成本效益的捕捞操作。此外，需要仅瞄准鱼和释放不需要物种的选择性拖网，以确保高质量的油和蛋白质。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号