Manipulation of the energetic state of Atlantic salmon Salmo salar juveniles and the effect on migration speed

被引：12

作者：

Persson, L. ^{[1
]}

Leonardsson, K. ^{[1
]}

Alanara, A. ^{[1
]}

机构：

[1] Swedish Univ Agr Sci, Dept Wildlife Fish & Environm Studies, SE-90183 Umea, Sweden

来源：

JOURNAL OF FISH BIOLOGY | 2018年 / 92卷 / 04期

基金：

瑞典研究理事会;

关键词：

body lipids; condition factor; feed restriction; smolt; starvation; wild-like; BROWN TROUT; BODY-COMPOSITION; RAINBOW-TROUT; SMOLT TRANSFORMATION; DETECTION EFFICIENCY; SEASONAL-CHANGES; ARCTIC CHARR; FIN EROSION; SURVIVAL; GROWTH;

D O I：

10.1111/jfb.13555

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

Atlantic salmon Salmo salar smolts were produced with similar energetic states as wild S. salar and the effect of low energetic state on smolt migration was tested. The total energetic state of the fish (body lipids and proteins) in the spring was correlated with Fulton's condition factor (K). Fish at a low energetic state swam slower but migrated further than fish at a higher energetic state when tested in two experimental streams. During a period of starvation throughout the winter and spring, fish conserved their body-lipid reserves at 15% by using more protein as an energy source and the metabolic shift occurred between 35 and 15% body lipids. An energetic state of approximately 35kJ g(-1) (K approximate to 065) appeared to be the critical limit for survival. (C) 2018 The Fisheries Society of the British Isles

引用

页码：961 / 978

页数：18

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