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首页> 外文期刊>Marine ecology progress series >Consistency in the behaviour types of the Atlantic cod: repeatability, timing of migration and geo-location
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Consistency in the behaviour types of the Atlantic cod: repeatability, timing of migration and geo-location

机译：大西洋鳕鱼行为类型的一致性：可重复性，迁移时间和地理位置

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摘要

We investigated the behaviour patterns of coastal (relatively stationary in shallow waters) and migratory frontal (offshore) types of Atlantic cod Gadus morhua in Icelandic waters using information from data storage tags (DSTs). Consistent and repeated patterns of migration were observed for both coastal and frontal cod, with characteristic DST profiles repeated from year to year. The migration timing in 2 successive years was close to being synchronous, suggesting that the onset of migration was consistent from year to year. A tidal location model suggested that the feeding migrations of cod in Icelandic waters were undertaken in groups or shoals during the whole year. The overall stability of the behaviour patterns of both types suggests that coastal and frontal individuals use different behavioural strategies which might either be related to food availability/competition or genetic control.
机译：我们使用来自数据存储标签（DST）的信息，调查了大西洋沿岸（在浅水中相对静止）和迁徙的额叶（近海）类型在冰岛水域的行为类型。在沿海和正面鳕中都观察到一致和重复的迁徙模式，每年都有重复的特征性DST分布图。连续两年的迁移时间几乎是同步的，这表明每年的迁移开始是一致的。一个潮汐模型表明，全年鳕鱼在冰岛水域的觅食迁移是成群或成群地进行的。两种类型行为模式的总体稳定性表明，沿海地区和额叶个体使用的行为策略可能与食物供应/竞争或遗传控制有关。

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