Migration and survival of Atlantic salmon Salmo salar smolts in a large natural lake

被引：36
|
作者：
Kennedy, Richard J. [1 ]
Rosell, Robert [1 ]
Millane, Michael [2 ]
Doherty, Dennis [3 ]
Allen, Michelle [1 ]
机构：
[1] Agrifood & Biosci Inst, Newforge Lane, Belfast BT9 5PX, Antrim, North Ireland
[2] Inland Fisheries Ireland, Dublin, Ireland
[3] Elect Supply Board, Dublin, Ireland
来源：
JOURNAL OF FISH BIOLOGY | 2018年 / 93卷 / 01期
关键词：
acoustic telemetry; hydroelectric; predator; prey; Salmo salar; telemetry; LOWER LOUGH ERNE; SEAWARD MIGRATION; DIEL MIGRATION; TRUTTA SMOLTS; TROUT SMOLTS; BEHAVIOR; RIVER; L; MOVEMENTS; RESERVOIR;
D O I：
10.1111/jfb.13676
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
An investigation with acoustic telemetry of the passage of Salmo salar smolts through a large natural lake found heavy mortality occurred at the river-to-lake confluences (mean 31.2% km(-1)), but was lower in the main body of the lake (mean 2.4% km(-1)). Predation was a significant pressure on emigrating smolts as tagged pike Esox lucius aggregated at river-to-lake confluences during the peak of the smolt run. Tagged smolts mainly emmigrated into the lake in the late evening after dusk, possibly as a predator-avoidance behaviour.
引用
收藏
页码：134 / 137
页数：4
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