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作 者:朱国平[1,2,3] 李凤莹[2] 冯春雷[4] 吴强[5] 徐鹏翔[2] 许柳雄[1,2,3]
机构地区:[1]国家远洋渔业工程技术研究中心,上海210306 [2]大洋渔业资源可持续开发省部共建教育部重点实验室,上海海洋大学,上海201306 [3]农业部大洋渔业资源环境科学观测实验站,上海海洋大学,上海201306 [4]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,上海200090 [5]中国水产科学研究院黄海水产研究所,山东青岛277071
出 处:《极地研究》2012年第4期346-351,共6页Chinese Journal of Polar Research
基 金:国家高技术研究发展计划(863计划)(2007AA092202);上海市重点学科建设项目(S30702);南极海洋生物资源开发与利用项目(D-8003-09-0158);上海海洋大学"海鸥计划"项目(B-5003-11-0023)资助
摘 要:根据2010年和2012年南半球夏季南极南奥克尼群岛西部水域开展的资源调查期间收集的数据,本研究对南极电灯鱼的基础生物学,包括体长(SL)、湿重(WW)、纯重(DW)、体长-体重关系、性成熟度和性腺指数及摄食强度进行了分析。结果表明:(1)南极电灯鱼体长范围为6.3—8.8 cm,平均体长为7.51 cm(7.48—7.54 cm)(95%置信区间);湿重范围为3.5—10.1 g,平均湿重为6.0 g(5.92—6.08 g);纯重范围为3.1—8.7 g,平均纯重为5.2 g(5.13—5.27 g);(2)湿重与纯重关系为DW=0.849 7 WW+0.162 3(R2=0.950 2),体长与纯重关系为SL=0.023 8DW2.6695;(3)调查期间,南极电灯鱼性成熟度处于Ⅰ—Ⅳ级,未发现有Ⅴ和Ⅵ级的个体出现;(4)摄食强度随体长的增加而有所加强,空胃与1级所占比例随体长增加而下降。Based on the biological data collected in the western South Orkney Islands, Antarctic in austral summer, 2010--2012, the present study analyzed the biological characteristics of Electron antarctic (Electrona antarctica), including standard length (SL), wet weight (WW), dressed weight (DW), the relationship between SL and DW, sexual maturity stage and gonadsomtic index. The results showed that : ( 1 ) The SL ranged from 6.3 to 8.8 cm and the average SL value is 7.51 cm (7.48--7.54 cm) (95 % confidence interval), the WW ranged from 3.5 to 10.1 g and the average WW is 6.0 g (5.92---6.08 g), the DW ranged from 3.1 to 8.7 g and the average DW is 5.2 g (5.13--5.27 g). (2) The relationship between WW and DW was DW =0. 8497WW +0. 1623 (R2 = 0.9502) , and the relationship between SL and DW was SL =0.0238D1V2"6695. (3) During the survey period, the sexual maturity stages of Electron antarctic were from stage I to IV and stage V and VI cannot be found. (4) The feeding intensity of Electron antarctic was increased with the increasing of SL, the proportion of empty stomach and stage I were decreased with the increasing of SL.
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