时政通,陈琪,李建超,刘阳,孙润隆,席晓宇,孙鹏

• 1:中国海洋大学水产学院
• 2:中国海洋大学海洋生命学院

摘要(Abstract)：

在长期气候变化和捕捞压力下渤海带鱼(Trichiurus japonicus)仍保持较高产量，为探究这一现象是否与渤海带鱼早期生长有关，本研究通过对渤海带鱼耳石微结构分析，追溯其产卵时间，使用梯度森林模型以及广义加性模型分析渤海带鱼早期生长与环境因子之间的关系。研究表明，渤海带鱼产卵高峰期为5月。海底温度(SBT)、混合层深度(MLD)和海表盐度(SSS)是影响带鱼早期生长的重要环境因子。其中，带鱼早期生长速度随SBT的升高而持续增加，且在10～12℃范围内生长速度最快。同时，随着MLD的增加，带鱼早期生长速度呈减缓趋势。以上结果表明，温度的升高以及充足的饵料供给可以促进带鱼的早期生长和种群的补充。

关键词(KeyWords)： 带鱼;耳石微结构;产卵时间;梯度森林模型;广义加性模型;环境因子

Abstract:

Keywords:

基金项目(Foundation): 国家重点研究发展计划项目(2018YFD0900902);; 国家自然科学基金项目(41861134037)资助~~

作者(Author): 时政通,陈琪,李建超,刘阳,孙润隆,席晓宇,孙鹏

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