Homing behavior of chum salmon determined by an archival tag
Homing behavior of chum salmon determined by an archival tag
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由档案标签决定的鲑鱼的归巢行为
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发表时间：
1999
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影响因子：
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通讯作者：
Y. Ueno
中科院分区：
文献类型：
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作者：
Y. Ueno
为了研究成熟大麻哈鱼的归巢行为，我们用NMT档案标签标记了25条大麻哈鱼，并于1998年夏天将它们释放到白令海中部。同年秋天，在北海道东海岸发现了三条被标记的鱼。我们可以从回收的档案标签中获取有关光线、水压、鱼体内外温度的完整数据系列。根据光数据和外部温度（海面温度）估计鱼的每日位置。由每日位置的连接确定的迁移路线表明，鱼大致采取了释放和恢复站点之间的最短路线。鱼的垂直运动由水压数据确定。我们发现了四种行为模式的鱼如下。1)模式-A：在贴标签后立即停留在表层沃茨和释放地点附近（6-15天）：2）模式-B：经常重复潜入沃茨水域，并在白天上升到表面沃茨（上下行为）和夜间停留在表面沃茨，从释放地点附近的沃茨（白令海）到北海道大陆架脊附近的长距离迁移（47-77天）。3)模式-C：在北海道大陆架洋脊（1天）约1天内，在深层（160- 270 m）持续淹没。4)模式-D：白天上下活动的频率降低，白天和夜晚在表层沃茨停留的趋势增加，在沿海沃茨迁移（2-6天）。
In order to investigate homing behavior of mature chum salmon, Oncorhynchus keta , we tagged 25 chum salmon using NMT archival tags and released them in the central part of the Bering Sea in the summer of 1998. Three fish tagged were recovered in the eastern coast of Hokkaido in the autumn ofthe same year. We could take the complete data series on light, water pressure, inner and outer temperatures of the fish body from the archival tags recovered. Daily locations of the fish were estimated based on light data and outer temperatures (sea surface temperature). Migration routes determined by connections ofthe daily location suggest that the fish roughly took the shortest course between the release and recovery sites. Vertical movement of the fish was determined by the data on water pressures. We found four behavior patterns of the fish as following. 1) Pattern-A: Staying in the surface waters and in the vicinity of the release sites in the period immediately following tagging (6-15 days): 2) Pattern-B: Frequently repeating to dive into mid-waters and rise to surface waters at daytime (the up-and down behavior) and staying in surface waters at nighttime, migrating long distance from waters near the release sites (Bering Sea) to near the ridges of continental shelf of Hokkaido (47-77 days). 3) Pattern-C: Continuously submerging in deep layers (160-270m) during about 1 day at the ridges of continental shelf of Hokkaido (1 day). 4) Pattern-D: Decreasing frequency ofthe up-and-down behavior at daytime and increasing a tendency to stay in surface waters through day and night, migrating in the coastal waters (2-6 days).