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

页码：134 / 137

页数：4

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