2009/2010-2011/2012渔季中国南极磷虾渔业渔场时空变动  

Spatial-temporal variation on fishing ground of Chinese Antarctic krill fishery in 2009/2010 to 2011/2012 fishing season

作　　者：朱国平[1,2,3,4] 徐怡瑛[2] 夏辉[2] 李莹春[2] 朱小艳[2] 徐鹏翔[2] 孟涛[2] 许柳雄[1,2,3,4] 

机构地区：[1]国家远洋渔业工程技术研究中心,上海210306 [2]上海海洋大学海洋科学学院,上海201306 [3]上海海洋大学大洋渔业资源可持续开发省部共建教育部重点实验室,上海201306 [4]上海海洋大学农业部大洋渔业资源环境科学观测实验站,上海201306

出　　处：《上海海洋大学学报》2013年第3期425-431,共7页Journal of Shanghai Ocean University

基　　金：国家"八六三"项目(2012AA092302);农业部南极海洋生物资源开发与利用项目(D-8003-09-0158);国家海洋局极地科学重点实验室开放基金项目(KP201210);上海海洋大学"海鸥计划"项目(B-5003-11-0023)

摘　　要：掌握南极磷虾渔业行为及渔场变动信息可为模拟渔业与生态系统相互作用提供非常重要的支撑。基于渔业科学观察员收集的2009/2010-2011/2012渔季中国南极磷虾渔业数据,利用渔场重心指标,分析了中国南极磷虾渔业渔场变动及渔船的行为模式。结果表明,从作业网次上来讲,2009/2010-2011/2012渔季期间,中国南极磷虾渔业主要渔场由48.1小区转向48.2小区,但产量变化却呈相反的趋势。尽管作业位置分布于6个精细管理单元中,但旬别渔场重心集中在4个精细管理单元中(APDPW,APDPE,APBSE和SOW)。中国南极磷虾渔业渔场选择不仅受到本地磷虾丰度的影响,同时还受到预定的决策,渔船条件及市场因素等的影响。Understanding of the fishing behaviour and the dynamic information on fishing ground of Antarctic krill fishery can provide an important support to modeling the interaction between fishery and ecosystem. Based on the data of Antarctic krill fishery in 2009/2010 to 2011/2012 fishing season collected by the fishery observers, the present study analyzes the fishing ground dynamics of Chinese Antarctic krill fishery and the behaviour pattern of fishing vessels using the barycenter of fishing ground. The results show that the main fishing ground is shifted from subarea 48.1 to subarea 48.2 during 2009/2010 to 2011/2012 fishing season in view of fishing net, but the reverse trend can be found for the catch. The barycenter of fishing ground in the 10-day period has only occurred in 4 SSMUs （APDPW, APDPE, APBSE and SOW） , although the fishing sites are located in 6 SSMUs. The selection of fishing ground of Chinese Antarctic krill fishery is affected by local abundance of Antarctic krill and predetermined decision-making, the condition of fishing vessel and marketing factors.

关 键 词：南极磷虾 渔业行为 时空变动 渔场重心 南设得兰群岛 南奥克尼群岛 

分 类 号：S932.5[农业科学—渔业资源]