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当前位置: 首页 > 文章 > 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 渔业信息与战略 2015,30 (3) 192-199
Position: Home > Articles > Spatial-temporal variation on fishing grounds and analysis on factors affecting CPUE index variations of Antarctic krill fishery in the South Shetland Islands area in 2013/14 fishing seasons Fishery Information and Strategy 2015,30 (3) 192-199

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

作  者：
齐广瑞;黄洪亮;吴越;饶欣;李灵智
单  位：
中国水产科学研究院东海水产研究所;中国水产科学研究院东海水产研究所农业部东海与远洋渔业资源开发重点实验室;农业部东海与远洋渔业资源开发利用重点实验室
关键词：
南极磷虾;南设得兰群岛;CPUE
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。
译  名：
Spatial-temporal variation on fishing grounds and analysis on factors affecting CPUE index variations of Antarctic krill fishery in the South Shetland Islands area in 2013/14 fishing seasons
作  者：
QI Guang-rui;HUANG Hong-liang;Wu Yue;RAO Xin;LI Ling-zhi;YANG Jia-liang;ZHOU Bin;LIU Jian;CHEN Shuai;Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation,Ministry of Agriculture;East China Sea Fishery Research Institute,Chinese Academy of FisherySciences;Engineering Technology Research Center of Marine Fishing,Chinese Academy of Fishery Sciences,Shanghai Ocean University;
关键词：
Antarctic krill;;South Shetland Islands;;CPUE
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 between3 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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