Movement of juvenile walleye pollock, Theragra chalcogramma, from a spawning ground to a nursery ground along the Pacific coast of Hokkaido, Japan
Movement of juvenile walleye pollock, Theragra chalcogramma, from a spawning ground to a nursery ground along the Pacific coast of Hokkaido, Japan
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日本北海道太平洋海岸幼鱼 Theragra chalcogramma 从产卵场到育苗场的移动
DOI：
10.1111/j.1365-2419.2004.00318.x
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发表时间：
2004
影响因子：
2.6
通讯作者：
T. Hattori
中科院分区：
文献类型：
--
作者：
S. Honda;Tatsuki Oshima;A. Nishimura;T. Hattori
在2000年和2001年的春季到夏季期间，我们观察到了长尾白鳕幼鱼Theragra chalcogramma从丰卡湾产卵地到北海道太平洋沿岸的多托苗圃的运动。幼鱼的体型与其分布的东线位置呈正相关关系，表明幼鱼的孵化时间与向多托地区东移的时间有关。根据幼鳕在日高湾大陆架上的水深分布，认为沿岸洋流对幼鳕的东移起到了一定的作用。然而，需要来自物理和生物海洋学研究的进一步支持证据来证实这一假设。
The movement of juvenile walleye pollock, Theragra chalcogramma, from the Funka Bay spawning ground to the Doto nursery ground along the Pacific coast of Hokkaido was observed during spring through summer of 2000 and 2001. A positive relationship between the size of the juveniles and the position of the eastern front of their distribution indicated a relationship between the hatching period and the timing of the eastward movement of juveniles toward the Doto area. Based on the bathymetric distribution of juvenile pollock on the continental shelf in Hidaka Bay, the coastal current is suggested to play a role in the easterly movement of juveniles. However, further supporting evidence from physical and biological oceanographic studies is necessary to confirm this hypothesis.