文章摘要
朱清澄,杨明树,高玉珍,花传祥,李珊珊,周扬帆.西北太平洋秋刀鱼耳石生长与性成熟度、个体大小的关系[J].上海海洋大学学报,2017,26(2):263-270.
ZHU Qingcheng,YANG Mingshu,GAO Yuzhen,HUA Chuanxiang,LI Shanshan,ZHOU Yangfan.The relationship between statolith growth, sexual maturity and body size of Cololabis saira in the Northwest Pacific Ocean[J].Journal of Shanghai Ocean University,2017,26(2):263-270.
西北太平洋秋刀鱼耳石生长与性成熟度、个体大小的关系
The relationship between statolith growth, sexual maturity and body size of Cololabis saira in the Northwest Pacific Ocean
投稿时间:2016-07-03  修订日期:2016-10-04
DOI:10.12024/jsou.20160701819
中文关键词: 秋刀鱼  耳石  性成熟度  叉长组
英文关键词: Cololabis saira  statolith  sexual maturity  fork length group
基金项目:国家科技支撑计划课题(2013BAD13B05)
作者单位
朱清澄 上海海洋大学 海洋科学学院, 上海 201306
国家远洋渔业工程技术研究中心, 上海 201306
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 
杨明树 上海海洋大学 海洋科学学院, 上海 201306 
高玉珍 上海海洋大学 海洋科学学院, 上海 201306 
花传祥 上海海洋大学 海洋科学学院, 上海 201306 
李珊珊 上海海洋大学 海洋科学学院, 上海 201306 
周扬帆 上海海洋大学 海洋科学学院, 上海 201306 
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中文摘要:
      根据2015年6-7月和10-11月中国秋刀鱼船在西北太平洋采集的秋刀鱼(Cololabis saira)样本,以耳石最大宽度(MW)与其总长(TSL)之比作为表征耳石生长的指标,利用方差分析耳石生长与性成熟度、个体大小的关系。结果表明,耳石扁平,核心靠后端,基叶较翼叶突出明显;除Ⅳ外,雌雄个体各期TSL和MW均值随性成熟度等级增大而增加,在Ⅳ~Ⅴ期TSL和MW均值明显增加。雌雄个体在Ⅱ、Ⅲ、Ⅳ、Ⅴ期性成熟度间耳石MW/TSL不存在显著性差异(P>0.05),表明从性成熟度Ⅱ期开始的个体,其耳石形态不随性成熟度的增加而变化。随着叉长增加,雌、雄性个体TSL和MW均值逐渐增加,不同叉长组间,耳石TSL、MW均值差异显著(P<0.05)。在各个叉长组间雌雄个体耳石MW/TSL不存在显著性差异(P>0.05),MW/TSL值增长不明显;秋刀鱼从性成熟度Ⅱ期开始,随着叉长增加,其耳石均匀生长。
英文摘要:
      Based on the samples collected by Chinese saury fishery fleet from the sea of the northwest Pacific Ocean from June to July and October to November in 2015, with the ratio of statolith maximum width (MW) to total length (TSL) as an indicator of statolith growth,the relationship between of statolith growth, sexual maturity and body size of Cololabis saira in the Northwest Pacific Ocean was analyzed by the analysis of variance. The results showed that statolith of Cololabis saira was flat and oval, its focus was on the backend and it has an apparent rostrum which is longer than the antirostrum; In addition to Ⅳ stage, TSL and MW mean of female and male individual increased with increased sexual maturity level. TSL and MW mean increased obviously from Ⅳ to Ⅴ stages. There was not significant difference between their MW/TSL (P>0.05) for the female and male individuals at four sexual maturity stages, the statoliths of Cololabis saira hardly changed their shape after the sexual maturity stage Ⅰ. As fork length increased, TSL and MW mean of female and male individuals increasd gradually, TSL and MW means had significant difference between fork length groups (P<0.05). There was not significant difference between their MW/TSL (P>0.05) for the female and male individuals in different fork length groups, and growth of MW to TSL (MW/TSL) was not obvious. With the fork length increasing, Cololabis saira statolith grew uniformly from stage Ⅱ of sexual maturity.
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