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当前位置: 首页 > 文章 > 南极半岛周边海域南极大磷虾生物学特性的初步研究 海洋渔业 2011,33 (4) 405-411
Position: Home > Articles > Biological characteristic of Antarctic krill(Euphausia superba) around the Antarctic Peninsula Marine Fisheries 2011,33 (4) 405-411

南极半岛周边海域南极大磷虾生物学特性的初步研究

作  者：
夏辉;许柳雄;朱国平;黄洪亮;冯春雷
单  位：
上海水产大学海洋学院;中国水产科学研究院东海水产研究所;上海海洋大学海洋科学学院;中国水产科学研究院东海水产研究所农业部海洋与河口渔业重点开放实验室
关键词：
南极大磷虾;性比;性成熟度;摄食等级;体长组成
摘  要：
根据2010年1月24日～2月11日在南极半岛周边CCAMLR辖区48.1区和48.2区的拖网磷虾渔获数据,对南极大磷虾的生物学特性进行了初步分析。结果表明:两区南极大磷虾的体长范围为33.65～65.80 mm,优势体长为50.00～58.00 mm,占60.66%;平均体长48.1区略大于48.2区,雌性大于雄性,生长指数为2.75。雌雄性比48.1区和48.2区分别约为1∶0.5和1∶1.5。样本中多为成体(II),而幼体(I)和抱卵雌体(III)较少。平均摄食等级48.2区高于48.1区。体长分布显示48.1区为3+～5+龄虾,48.2区为2+～5+龄虾。
译  名：
Biological characteristic of Antarctic krill(Euphausia superba) around the Antarctic Peninsula
作  者：
XIA Hui1,2,XU Liu-xiong1,2,3,ZHU Guo-ping1,2,3,HUANG Hong-liang4, FENG Chun-lei4,SUN Jian-qiang5,WU Qiang5(1.College of Marine Sciences,Shanghai Ocean University; 2.Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education; 3.Key Laboratory of Shanghai Education Commission for Oceanic Fisheries Resources Exploitation,Shanghai 201306,China; 4.Key and Open Laboratory of Marine and Estuarine Fisheries of Ministry of Agriculture,East China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences,Shanghai 200090,China; 5.Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China.)
关键词：
Antarctic krill;sex ratio;sex maturity stage;feeding stage;length distribution
摘  要：
The biological characteristics of Antarctic krill(Euphausia superba) caught by trawler in subarea 48.1 and 48.2 of CCAMLR's Convention Area around the Antarctic Peninsula from January 24th to February 11th,2010 were studied.Results showed that body lengths were from 33.65 to 65.80 mm,with the dominant length from 50.00 to 58.00mm,accounting for 60.66% of the total.Mean length in subarea 48.1was bigger than that in subarea 48.2,and average length of females was bigger than of males.Growth parameter was 2.75.The ratio of female to male was about 1 : 0.5 in subarea 48.1 and about 1 : 1.5 in subarea 48.2.For the maturity stage,almost all samples were adults(II),juveniles(I) and gravid female(III) were few.Mean feeding stage in subarea 48.1 was bigger than that in subarea 48.2.Length distribution showed that the population was composed of age group 3+-5+ in subarea 48.1 and 2+-5+ in subarea 48.2.

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