中国水产频道报道， 本文介绍阿拉斯加附近海域的黄金鲽捕捞情况，分为两部分，这是第二部分。 文/ 美国阿拉斯加海产报告网站创始人 Jason Anderson 黄金鲽（Yellowfin Sole，拉丁名：Limanda aspera），也称黄腹鲽、黄盖鲽，主要分布在东北太平洋白令海东部和阿拉斯加湾一带，在白令海北部、加拿大英属哥伦比亚省沿岸、日本海的太平洋一侧等海域也有分布。 近年来，随着全球的进口海鲜大量涌入中国，黄金鲽由于性价比高且营养丰富，在中国市场也越来越受欢迎，消费潜力巨大。而目前国内市场的黄金鲽大部分是在阿拉斯加海域捕捞而来，市场上也称阿拉斯加黄金鲽。 因此阿拉斯加黄金鲽的捕捞配额的变化将对中国市场的销售价格行情产生明显影响影响。 本文介绍黄金鲽和该鱼种在阿拉斯加附近海域的捕捞情况，分为两部分，这是第二部分。第一部分提供了美国的进出口数据，讲述了捕捞业的历史，介绍了当前管理方式的意义和影响，并总结了最新的渔业资源评估和生物量走势。详情请点击：黄金鲽占阿拉斯加海域比目鱼产量近50%！今年捕捞情况怎么样？。 第二部分集中介绍今年的渔业形势和今年剩余时间的捕捞预期。 2018年黄金鲽的总可捕捞量为154,000吨，分布情况为： 第80号修正案渔业合作社船队（115,171吨）、阿拉斯加部落社区发展配额（CDQ）类团体（16,478吨）、白令海与阿留申群岛（BSAI）拖网限用捕捞船只（18,351吨），以及为其他偶然性捕捞需求预留的配额。
作者简介 Jason Anderson，美国阿拉斯加海产报告网站（www.alaskaseafoodreport.com）创始人。其在阿拉斯加从事渔业生物学家和管理家的工作已有约20年，其中9年任阿拉斯加海产合作社（Alaska Seafood Cooperative，简称AKSC）经理，这是在阿拉斯加运营的最大鲽鱼类捕捞合作社。 美国阿拉斯加海产报告网站，主要提供详尽的阿拉斯加鲽鱼类供应信息，旨在帮助海产加工商、贸易商和采购商更好地了解鲽鱼类的预期供应量，从而在定价和运营方面做出更明智的决策。 作者邮箱：jason@alaskaseafoodreport.com Amendment 80 is described in part one of this series and is the largest yellowfin sole allocation. You can read part one of this article [here]. Certain coastal communities in the Bering Sea and Aleutian Islands who meet CDQ criteria receive quota allocations. Often CDQ groups partner with Amendment 80 vessels to harvest their allocations. Trawl limited access includes catcher vessels that deliver to Amendment 80 vessels, and pollock vessels who may target yellowfin sole during non-pollock seasons. Current aggregate 2018 catch as of the most recent NMFS data is 65,857 mt. The 2017 aggregate quota was the same as this year, and from week 21 of 2017 through the end of the fishing year, 76,719 mt was harvested. Yellowfin sole are harvested during two main seasons. The first occurs during the spring after the rock sole spawn, and the second during the fall months. Yellowfin spawn in late May and early June, after which the fish disperse, and the flesh becomes low quality. During the fall fishery, large schools re-emerge, and flesh quality improves, increasing fishing efficiency and marketability.  Catch by week of non-CDQ yellowfin sole from 2013 through September 2017. Figure from NMFS 2017 yellowfin sole stock assessment. The following pie chart from www.alaskaseafoodreport.com shows 2017 relative yellowfin sole catch by month.
In general, yellowfin sole aggregations move across the Bering Sea shelf towards their spawning areas in Bristol and Kuskokwim Bays. Prior to spawning, large schools of yellowfin sole provide high efficiency, low bycatch fishing, making this area one of the most important to yellowfin sole fishermen. However, these areas are also culturally important to native Alaskan populations who use these areas to fish and hunt. To reduce vessel conflicts and unintended interference with fish and marine mammal migrations routes, the fleet has negotiated a June 7 closure of the Bristol Bay yellowfin sole grounds. This more or less corresponds with yellowfin sole spawning grounds, but during some years the fleet must leave still-productive fishing. According to industry representatives, halibut bycatch has been high in these areas relative to recent years, causing vessels to search for cleaner fishing grounds. Additionally, rock sole catch is higher than normal for this time of year, potentially due to impacts of halibut impact. The following heat maps show yellowfin sole fishing intensity by month and area. Because the stock assessment is prepared each fall, only 2017 data were only available through September.
NMFS 2017 yellowfin sole stock assessment This information is provided by Jason at the Alaska Seafood Report. Additional detailed information for all Alaska flatfish species can be found at www.alaskaseafoodreport.com. Or I can be contacted directly at jason@alaskaseafoodreport.com. 以上资讯由Jason在阿拉斯加海产报告网站提供。 有关所有阿拉斯加比目鱼品种的更多详细信息，请访问www.alaskaseafoodreport.com。 或者可以直接联系jason@alaskaseafoodreport.com。 【关键字】： 2018年 阿拉斯加 黄金鲽 捕捞情况 水产养殖网 |
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