Effect of digestion on the δ13C and δ15N of fish-gut contents

被引：18
|
作者：
Guelinckx, J. [1 ]
Dehairs, F. [2 ]
Ollevier, F. [1 ]
机构：
[1] Katholieke Univ Leuven, Aquat Ecol Lab, B-3000 Louvain, Belgium
[2] Vrije Univ Brussels, Dept Analyt Chem, B-1050 Brussels, Belgium
来源：
JOURNAL OF FISH BIOLOGY | 2008年 / 72卷 / 01期
关键词：
assimilation; carbon and nitrogen stable isotopes; Pomatoschistus minutus; stomach content analysis; trophic enrichment;
D O I：
10.1111/j.1095-8649.2007.01692.x
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Gut contents of sand goby Pomatoschistus minutus showed higher C and N isotope values than the food before consumption. This enrichment was more pronounced in the hindgut than in the foregut, probably because of preferential assimilation of C-12 and N-14 along the gastro-intestinal tract. The results indicated that the shift towards higher values in the alimentary canal occurs in the first 2 h after feeding. (C) 2008 The Authors Journal compilation (C) 2008 The Fisheries Society of the British Isles.
引用
收藏
页码：301 / 309
页数：9
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