Fine-scale variability in otolith chemistry: Application to the life history analysis of Pacific cod (Gadus macrocephalus) in the Yellow Sea
Fine-scale variability in otolith chemistry: Application to the life history analysis of Pacific cod (Gadus macrocephalus) in the Yellow Sea
复制标题
耳石化学的精细尺度变异：在黄海太平洋鳕鱼（Gadus macrocephalus）生活史分析中的应用
DOI：
10.1016/j.ecss.2021.107392
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发表时间：
2021-08
期刊：
影响因子：
--
通讯作者：
Tian Yongjun
中科院分区：
文献类型：
--
作者：
Wu Rui;Li Jianchao;Zhang Chi;Pan Xindong;Jiang Tao;Yang Jian;Liu Shude;Tian Yongjun
黄海是太平洋鳕鱼（Gadusmacrocephalus）分布的西南边界，是北太平洋典型的冷水性鱼类，具有重要的经济价值。近年来，黄海太平洋鳕鱼的捕捞量逐渐增加，引起了人们的高度重视。为了探索耳石化学在不同产卵场和关键生活史事件表征中的应用，从2016年10月至2017年8月共获得了60份太平洋鳕鱼标本。采用激光烧蚀-电感耦合等离子体质谱法测定了耳石中钡和锶的含量。基于层次聚类分析（HCA），标本被分配到两个组的基础上的Ba：Ca的比例在核心。利用线性混合效应（LMM）模型推断的Ba：Ca的各种模式表明黄海太平洋鳕鱼产卵场环境的差异，Sr：Ca比值的阶跃变化以及耳石图像中观察到的相应检查表明太平洋鳕鱼的定居发生在孵化后约80-120天。数据的性质阻止了从目前可用的数据中得出确切的结论，但值得注意的是，个体之间某些元素的显着差异以及与太平洋鳕鱼关键生活史事件的关联。
The Yellow Sea is the southwestern limit of the distribution of Pacific cod (Gadus macrocephalus), a typical cold water and commercially important fish in the North Pacific. The catch of Pacific cod in the Yellow Sea has increased gradually in recent years, and has received substantial attention. To explore the use of otolith chemistry in the characterization of different spawning grounds and crucial life history events, a total of 60 specimens of Pacific cod were obtained from October 2016 to August 2017. The contents of barium (Ba) and strontium (Sr) in otoliths from the core to the edge along the ventral side were determined using laser ablation-inductively coupled plasma-mass spectrometry. Based on hierarchical cluster analysis (HCA), the specimens were assigned to two groups based on the ratio of Ba:Ca at the core. The various patterns of core-to-edge Ba:Ca inferred using a linear mixed-effect (LMM) model suggested differences in the spawning ground environments for Pacific cod in the Yellow Sea, and step changes found in the Sr:Ca ratio, and a corresponding check observed in otolith images suggest that the settlement of Pacific cod occurred approximately 80–120 days after hatching. The nature of the data prevents firm conclusions being drawn from the data available at present, but the significant differences in certain elements among individuals and the association with crucial life history events in Pacific cod are noteworthy.
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DOI：
10.1016/j.dsr2.2007.02.007
发表时间：
2007-11
影响因子：
3
作者：
Y. Sakurai
通讯作者：
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影响因子：
2.4
作者：
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DOI：
10.1016/j.dsr.2017.01.011
发表时间：
2017-03
期刊：
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2.7
作者：
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作者：
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