Premium
Elemental turnover rates and trophic discrimination in juvenile Lebranche mullet Mugil liza under experimental conditions
Author(s) -
Oliveira M. C. L. M.,
Mont'alverne R.,
Sampaio L. A.,
Tesser M. B.,
Ramos L. R. V.,
Garcia A. M.
Publication year - 2017
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.13408
Subject(s) - mugil , mullet , biology , juvenile , trophic level , turnover , fishery , zoology , ecology , fish <actinopterygii> , management , economics
The aim of this study was to determine the isotopic‐turnover rate ( R IT ) and trophic‐discrimination factor ( F TD ) in muscle tissues of Lebranche mullet Mugil liza fed an experimental diet (δ 13 C = −27·1‰; δ 15 N = 1·0‰). Juvenile M. liza exhibited a relatively fast R IT , with a half‐life ( t 50 ) of only 16 and 14 days for δ 13 C and δ 15 N respectively and a nearly complete isotopic turnover ( t 95 ) of 68 and 60 days for δ 13 C and δ 15 N.