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Diet‐tissue discrimination factors ( Δ 13 C and Δ 15 N ) and turnover rate in somatic tissues of a neotropical detritivorous fish on C 3 and C 4 diets
Author(s) -
Sacramento P. A.,
Manetta G. I.,
Benedito E.
Publication year - 2016
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/jfb.12859
Subject(s) - biology , turnover , zoology , nitrogen , somatic cell , fish <actinopterygii> , muscle tissue , medicine , ecology , endocrinology , biochemistry , fishery , chemistry , gene , management , organic chemistry , economics
In this study, diet‐tissue discrimination factors and turnover rates were determined from the somatic tissues of a detritivorous fish Prochilodus lineatus . The carbon ( Δ 13 C ) and nitrogen ( Δ 15 N ) diet‐tissue discrimination factors varied for all feed rations with a range of Δ 13 C values between −1·9 and 3·6‰ and Δ 15 N between 3·3 and 5·7‰. Carbon turnover rate in the blood was 23·1 days for the C 3 ration and 34·7 days for the C 4 ration, in the liver was 9·9 days under the C 3 ration and nitrogen turnover rate was the same (23·1 days) in the liver for both C 4 and C 3 – C 4 rations, and 13·9 days in the muscle for C 3 – C 4 ration.