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2013/14渔季南设得兰群岛海域南极磷虾渔场时空变动及CPUE影响因素分析
  • ISSN号:2095-3666
  • 期刊名称:《渔业信息与战略》
  • 时间:0
  • 分类:S977[农业科学—捕捞与储运;农业科学—水产科学]
  • 作者机构:[1]农业部东海与远洋渔业资源开发利用重点实验室,上海200090, [2]中国水产科学研究院东海水产研究所,上海200090, [3]中国水产科学研究院海洋捕捞工程技术研究中心,上海200090
  • 相关基金:公益性行业(农业)科研专项(编号:201203018);农业部南极海洋生物资源开发利用(2010-2014);南北极综合考察与评估专项(编号:CHIARE2014-04-02)
中文摘要:

本文根据2013/14渔季“福荣海”轮在南设得兰群岛海域生产期间收集的数据,对南极磷虾渔场时空变动和影响CPUE变动的因素(时空、放网时间、拖速、拖曳深度、水深和水温)进行分析。结果表明:(1)48.1亚区磷虾渔场随时间变化由乔治岛东北部向乔治岛和南极半岛之间水域移动;(2)平均CPUE具有明显的时空差异,4月上旬平均CPUE最高(44.41t/h),放网时间在[8:00,18:00)时,平均CPUE较高,超过20 t/h;(3)拖速[3,3.3)kn时平均CPUE最高(27.20 t/h),拖曳水深在(20,40]m时,平均CPUE最高(34.35 t/h),海底深度在[100,200)m时,平均CPUE最大(34.48 t/h),水温小于-1.8℃时平均CPUE最高(36.20t/h)。本研究结果可为南极磷虾生物资源开发提供基础数据,并为海上生产提供指导性参考。

英文摘要:

Based on the data collected by trawl fishery targeted at Antarctic krill (Euphausia superba ) operating in the Antarctic waters around the South Shetland Islands of the trawler "FURONGHAI"in 2013/14 fishing seasons, the factors affecting CPUE (Catch Per Unit Effort) index of Antarctic krill survey including spatial-temporal variation, start fishing time, trawl speed, trawl depth and sea temperature were analyzed, and the spatial-temporal variations of fishing grounds were also analyzed. Results showed that : ( 1 ) the main fishing grounds in 48.1 subarea shifted from the northeast of the George Island to the area between the George Island and the Antarctic Peninsula; (2) the average CPUE had obvious spatial-temporal differences, the early April had the highest average CPUE (44.41 t/h), the average CPUE was over 20 t/h when the start fishing time was between 8:00 to 18: 00; (3) the average CPUE index was larger when the trawl speed was between 3 knot to 3.3 knot (27.20 t/h), or the trawl depth was between 20 m to 40 m (34.45 t/h), or the sea bottom depth was between 100 m to 200 m ( CPUE = 34.48 t/h), or the sea temperature was lower than - 1.8℃ ( CPUE = 36.2 t/h). The study can provide basic data for exploiting Antarctic krill resources and guide reference for fishing operation in the sea area.

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期刊信息
  • 《渔业信息与战略》
  • 主管单位:中华人民共和国农业部
  • 主办单位:中国水产科学研究院东海水产研究所
  • 主编:王鲁民
  • 地址:上海市军工路300号2号楼
  • 邮编:200090
  • 邮箱:fisheryinfo@163.com
  • 电话:021-65807968
  • 国际标准刊号:ISSN:2095-3666
  • 国内统一刊号:ISSN:31-2072/S
  • 邮发代号:4-625
  • 获奖情况:
  • 获第一届全国水产系统优秀报刊一等奖,第二届上海市优秀期刊三等奖,全国优秀水产科技期刊三等奖,多次获全国水产系统和上海市科技优秀期刊称号
  • 国内外数据库收录:
  • 被引量:330