陆化杰,王从军,陈新军

• 1:上海海洋大学海洋科学学院
• 2: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
• 3:上海海洋大学国家远洋渔业工程技术研究中心
• 4:上海海洋大学远洋渔业协同创新中心

摘要(Abstract)：

根据2013年4~6月在赤道公海探捕期间采集茎柔鱼样本,研究赤道公海茎柔鱼渔业生物学特性。结果表明,不同性别、不同月份,茎柔鱼胴长和体质量组成不同。雌、雄性样本的胴长范围分别为93~495 mm和94~406 mm,优势胴长组分别为260~340 mm和240~320 mm,分别占样本总数72.53%和70.26%;雌、雄性样本体质量范围分别为25~3 900 g和33~2170 g,优势体质量组分别为400~1 200 g和200~1 000 g,分别占样本总数82.71%和87.82%。雌、雄性茎柔鱼净体质量比例分别介于31.69%~80.51%和37.05%~81.35%之间,平均值分别为60.45%和62.73%。协方差分析表明,茎柔鱼胴长与体质量、胴长与净体质量的生长均存在性别间差异,胴长与体质量的生长都最适合用幂函数表示,而胴长与净体质量的生长,雌、雄性样本分别最适合用幂函数和指数函数表示。不同月份茎柔鱼性别比例构成不同,4月、5月和6月性别比例分别为1.87∶1、1.61∶1和1.17∶1,全部样本的性别比例为1.61∶1。不同月份茎柔鱼性腺成熟度的组成不同。不同性别、不同月份间茎柔鱼胃含物等级组成存在差异。

关键词(KeyWords)： 茎柔鱼;生物学特性;东太平洋赤道公海

Abstract:

Keywords:

基金项目(Foundation): 国家863计划(2012AA092303);; 国家发改委产业化专项(2159999);; 上海市科技创新行动计划(12231203900);; 国家科技支撑计划(2013BAD13B01)

作者(Author): 陆化杰,王从军,陈新军

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