| 性成熟和个体大小对智利外海茎柔鱼耳石生长的影响 |
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| 引用本文： | 陈新军,陆化杰,刘必林,钱卫国,田思泉.性成熟和个体大小对智利外海茎柔鱼耳石生长的影响[J].水产学报,2010,34(4):540-547. |
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| 作者姓名： | 陈新军 陆化杰 刘必林 钱卫国 田思泉 |
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| 作者单位： | 1. 上海海洋大学海洋科学学院,上海,201306;上海海洋大学大洋生物资源开发和利用上海市高校重点实验室,上海,201306;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
2. 上海海洋大学海洋科学学院,上海,201306 |
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| 基金项目： | 国家自然科学基金项目(NSFC40876090); 曙光计划跟踪项目(08GG14); 上海市教委优秀青年基金(B-8101-080-0024); 上海市捕捞学重点学科(S30702) |
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| 摘 要： | 根据2007-2008年智利外海茎柔鱼资源调查期间采集的样本,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,利用方差分析研究性成熟和个体大小对耳石生长的影响。分析认为,雌性个体的耳石MW/TSL与性腺成熟度存在相关性,性成熟度Ⅰ级与Ⅲ级、Ⅱ级与Ⅲ级个体的耳石MW/TSL存在显著差异(P<0.05);而雄性个体的耳石MW/TSL与性腺成熟度无关。雌性个体的耳石MW/TSL与胴长也存在着相关性,胴长300～400mm的个体与500～600mm和600～700mm、胴长400～500mm与500～600mm和600-700mm的雌性个体,它们耳石MW/TSL差异显著(P<0.05),胴长为400～500mm至500～600mm的个体,其MW/TSL增加迅速,差异极显著(P<0.01)。胴长350～400mm与400～500mm、400～450mm与450～500mm的雄性个体,它们耳石MW/TSL也存在显著差异(P<0.05),胴长400～450mm时的MW/TSL值为最小。研究表明,性成熟和个体大小对智利外海茎柔鱼耳石的生长有影响,但雌雄个体有差别。
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| 关 键 词： | 茎柔鱼 耳石 性成熟 智利外海 |
| 收稿时间： | 2009/2/23 0:00:00 |
| 修稿时间： | 2009/4/22 0:00:00 |
Effect of sexual maturity and size on statolith growth of Jumbo flying squid Dosidicus gigas in the high sea waters off Chile |
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| Lu huajie,Liu Bilin,Qian weiguo and Tian siquan.Effect of sexual maturity and size on statolith growth of Jumbo flying squid Dosidicus gigas in the high sea waters off Chile[J].Journal of Fisheries of China,2010,34(4):540-547. |
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| Authors: | Lu huajie Liu Bilin Qian weiguo and Tian siquan |
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| Institution: | CHEN Xin-jun1,2,3,LU Hua-jie1,LIU Bi-lin1,QIAN Wei-guo1,TIAN Si-quan1,3(1.College of Marine Sciences,Shanghai Ocean University,Shanghai 201306,China,2.The Key Laboratory of Oceanic Fisheries Resources Exploitation of Shanghai Education Commission,3.The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources,Ministry of Education,China) |
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| Abstract: | According to the samples of Dosidicus gigas collected by Chinese squid jigging vessels during the investigation from 2007 to 2008 off the coast of Chile,the ratio of statolith maximum width(MW) to total length(TSL) as an indicator of statolith growth,the statolith growth impacted by sex maturity and individual size is analyzed by the analysis of variance.The results indicated that the ratio of MW to TSL(MW/TSL) for female individual is closely related with gonad maturity,for the female squids with sexual ma... |
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| Keywords: | Dosidicus gigas statolith sexual maturation the sea off Chile |
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