两个地理群体柔鱼角质颚生长的比较研究
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- 英文论文题名：Comparison of growth in Ommastrephes bartramii beaks in two geographical cohorts
- 论文作者：金岳 ; 陈新军
- 英文论文作者：JIN Yue ; CHEN Xin-jun ; College of Marine Sciences ; Shanghai Ocean University ; National Distant-water Fisheries Engineering Research Center ; Shanghai Ocean University ; The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources ; Ministry of Education ; Shanghai Ocean University ; Collaborative Innovation Center for Distant-water Fisheries
- 年：2016
- 作者机构：上海海洋大学海洋科学学院;国家远洋渔业工程技术研究中心;大洋渔业资源可持续开发省部共建教育部重点实验室;远洋渔业协同创新中心;
- 论文关键词：柔鱼 ; 角质颚 ; 群体 ; 生长率
- 英文论文关键词：Ommastrephes bartramii ; beaks ; cohorts ; growth rate
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S917.4
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：505k
- 原文格式：D
- 会议级别：全国
摘要
本研究根据中国鱿钓组于2010年5~11月在北太平洋采集的柔鱼样本,利用角质颚形态特征对两个柔鱼群体进行了比较。t检验结果表明,两个群体(分雌性、雄性和整体)的角质颚外部形态基本都存在极显著差异(除雄性的UWL、LCL、LRL和LRW)。比较胴长与角质颚12项形态参数的关系发现,东部群体中角质颚的UCL、ULWL、LLWL和LWL拟合最好;西部群体中UHL、ULWL、LCL、LLWL拟合最好。利用主成分分析对角质颚形态参数研究发现,表征柔鱼东西部群体角质颚生长的形态参数有所不同。利用角质颚10项形态参数(UHL、URL、URW、ULWL、UWL、LHL、LCL、LRW、LLWL和LWL)建立判别函数,发现东部群体的判别正确率为77.4%,而西部群体的判别正确率则高达92.7%。对东部群体雌雄角质颚分析发现,其生长率大体呈下降趋势,基本在191~220d有最大值,而在341~370d有最小值。而对西部群体雌雄角质颚分析发现,其生长率总体呈先上升后下降的趋势,在161~190d达到最大值,随后开始下降。
According to samples collected by the Chinese squid jigging vessels during May to November in 2010 in North Pacific Ocean, we compared morphological characteristics of squid beaks in two geographical cohorts. T-test showed that there were significant variance(except UWL, LCL, LRL and LRW of male) between two cohorts(by comparing female, male and both of them respectively). Comparing relationships of mantle length and 12 morphological parameters,we found that the best fittings in eastern cohort were UCL, ULWL, LLWL and LWL, and in western cohort were UHL, ULWL, LCL and LLWL. Principle Component Analysis found that morphological parameters representing beak growth were different in two cohorts.
According to samples collected by the Chinese squid jigging vessels during May to November in 2010 in North Pacific Ocean, we compared morphological characteristics of squid beaks in two geographical cohorts. T-test showed that there were significant variance(except UWL, LCL, LRL and LRW of male) between two cohorts(by comparing female, male and both of them respectively). Comparing relationships of mantle length and 12 morphological parameters,we found that the best fittings in eastern cohort were UCL, ULWL, LLWL and LWL, and in western cohort were UHL, ULWL, LCL and LLWL. Principle Component Analysis found that morphological parameters representing beak growth were different in two cohorts.
引文