Isotopic analysis of epidermal mucus in freshwater fishes can reveal short-time diet variations
Isotopic analysis of epidermal mucus in freshwater fishes can reveal short-time diet variations
复制标题
淡水鱼表皮粘液的同位素分析可以揭示短期饮食变化
DOI:
10.1007/s11284-017-1478-8
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发表时间:
2017
影响因子:
2
通讯作者:
Maruyama Atsushi
中科院分区:
文献类型:
--
作者:
Shigeta Kanji;Tsuma Shiori;Yonekura Ryuji;Kakamu Hiroto;Maruyama Atsushi
Although stable isotope analysis is a powerful tool for determining animal diets, migration patterns, and the structure of food webs in aquatic systems, the slow response of isotopic ratios in the traditionally used muscle tissue of fishes often hampers this approach. By analyzing tissues with more rapid isotopic change, this technique can be used over a finer time scale than traditional isotopic analyses. We conducted a diet-switch experiment to compare changes in the stable carbon and nitrogen isotope ratio values (δ13C andδ15N, respectively) in epidermal mucus, fin and muscle tissues of three species of freshwater cyprinid fishes. The half-life of the isotopic change ranged from 62 to 144 days in mucus, 57 to 202 days in fin, and 196 to 680 days in the muscle tissue. The isotope ratios in mucus changed more rapidly than those in muscle tissues in the three species examined, similarly to the previously studied three species (catfish, steelhead, freshwater goby), whereas fin showed relatively variable trends in isotopic change. Interspecific variation in the trophic discrimination factor (TDF) was particularly large in theδ13C values of fin tissue compared with those in the other two tissues. With generally rapid change and relatively invariable TDF, the use of epidermal mucus in isotope analysis instead of the widely used fin and muscle tissues is advantageous for studying short-term changes in food habits of fishes and food web structures.
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DOI:
10.1016/s0022-0981(01)00324-0
发表时间:
2001-10-15
影响因子:
2
作者:
Herzka, SZ;Holt, SA;Holt, GJ
通讯作者:
Holt, GJ
影响因子:
0.4
作者:
K. Hata
通讯作者:
K. Hata
DOI:
--
发表时间:
2004
期刊:
Beginnings
影响因子:
--
作者:
C. Esche
通讯作者:
C. Esche
影响因子:
1.4
作者:
Xiaofu Pan;Jian Yang;Xiao;J. Yang
通讯作者:
J. Yang
DOI:
10.1016/j.cbpa.2007.06.419
发表时间:
2007
期刊:
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology
影响因子:
--
作者:
Y. Vollaire;D. Banas;M. Thomas;H. Roche
通讯作者:
H. Roche