First report of growth rate of juvenile chum salmon Oncorhynchus keta captured in the Sea of Okhotsk offshore

被引:5
|
作者
Honda, Kentaro [1 ]
Kawakami, Tatsuya [2 ,3 ]
Saito, Toshihiko [1 ]
Urawa, Shigehiko [1 ]
机构
[1] Japan Fisheries Res & Educ Agcy, Hokkaido Natl Fisheries Res Inst, Sapporo, Hokkaido, Japan
[2] Univ Tokyo, Grad Sch Agr & Life Sci, Bunkyo Ku, 1-1-1 Yayoi, Tokyo 1138657, Japan
[3] Univ Tokyo, Atmosphere & Ocean Res Inst, Otsuchi, Iwate 0281102, Japan
关键词
Early marine life; Growth rate; Pacific salmon; Sea of Okhotsk; MORTALITY; MIGRATION;
D O I
10.1007/s10228-018-0643-6
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
The growth rate of 16 juvenile chum salmon Oncorhynchus keta (180-286mm fork length) captured in the Sea of Okhotsk offshore during autumn 2002 was estimated using daily-incremental analysis of otoliths. The specimens originated from Hokkaido, Japan, and Sakhalin and Kamchatka, Russia. The average (range) of estimated mean daily growth in fork length was 1.19 (1.02-1.54)mm/day through the entire early ocean life and 1.05 (0.84-1.21) mm/day during the first 30days after sea entry. These growth rates were higher than those reported previously for coastal resident or migrant juvenile chum salmon along the coast of Japan.
引用
收藏
页码:155 / 159
页数:5
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