Comparison of damage to live v. euthanized Atlantic salmon Salmo salar smolts from passage through an Archimedean screw turbine

被引：11

作者：

Brackley, R. ^{[1
]}

Lucas, M. C. ^{[2
]}

Thomas, R. ^{[3
]}

Adams, C. E. ^{[1
]}

Bean, C. W. ^{[1
]}

机构：

[1] Univ Glasgow, Scottish Ctr Ecol & Nat Environm, IBAHCM, Glasgow G63 0AW, Lanark, Scotland

[2] Univ Durham, Dept Biosci, South Rd, Durham DH1 3LE, England

[3] Univ Glasgow, Sch Geog & Earth Sci, Univ Rd, Glasgow G12 8QQ, Lanark, Scotland

来源：

JOURNAL OF FISH BIOLOGY | 2018年 / 92卷 / 05期

关键词：

behaviour; hydropower; impact assessment; migration; run-of-river; Salmo salar smolt; DOWNSTREAM MIGRATION; BEHAVIOR; FISH;

D O I：

10.1111/jfb.13596

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

This study assessed the usefulness of passing euthanized Atlantic salmon Salmo salar smolts through an Archimedean screw turbine to test for external damage, as compared with live, actively swimming smolts. Scale loss was the only observed effect. Severe scale loss was 5.9 times more prevalent in euthanized turbine-passed fish (45%) than the live fish (7.6%). Additionally, distinctive patterns of scale loss, consistent with grinding between the turbine helices and housing trough, were observed in 35% of euthanized turbine-passed smolts. This distinctive pattern of scale loss was not seen in live turbine-passed smolts, nor in control groups (live and euthanized smolts released downstream of the turbine), which suggests that the altered behaviour of dead fish in turbine flows generates biased injury outcomes. (c) 2018 The Fisheries Society of the British Isles

引用

页码：1635 / 1644

页数：10

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