Feeding, growth and nutritional status of restocked salmon parr along the longitudinal gradient of a large European river: the Allier

被引：11

作者：

Descroix, A. ^{[1
]}

Desvilettes, C.

Martin, P. ^{[2
]}

Anneville, O. ^{[3
]}

Bec, A.

Bourdier, G.

机构：

[1] UBP Clermont Ferrand II, CNRS, Equipe Fonctionnement Reseaux Troph Aquat, LMGE,UMR 6023, F-63177 Aubiere, France

[2] Conservatoire Natl Saumon Sauvage, Chanteuges, France

[3] Stn Hydrobiol Lacustre, Inra, Thonon, France

来源：

ECOLOGY OF FRESHWATER FISH | 2009年 / 18卷 / 02期

关键词：

feeding and growth; nutritional status; upstream-downstream gradient; large temperate river; Salmo salar L; JUVENILE ATLANTIC SALMON; SUB-ARCTIC RIVER; DENSITY-DEPENDENT GROWTH; FATTY-ACID-COMPOSITION; SALAR L; BROWN TROUT; LIPID CLASS; FISH; WATER; SIZE;

D O I：

10.1111/j.1600-0633.2008.00345.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The feeding, growth and nutritional status of salmon parr (0+) released at fry stage in different riffles were studied in a large temperate river (Allier, France) throughout the active feeding period. Significant differences were observed along the upstream-downstream gradient. Parr growth performance and energy storage were higher in downstream riffles and low in the most upstream one. These longitudinal growth variations are discussed in the context of diet and food availability differences, habitat variables and intra- and inter-species competition. The most favourable site for optimum growth and nutritional status appeared to be the intermediary riffle located in the grayling zone.

引用

页码：282 / 296

页数：15

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