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Elemental turnover rates and trophic discrimination in juvenile Lebranche mullet Mugil liza under experimental conditions |
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| Authors: | M C L M Oliveira R Mont'alverne L A Sampaio M B Tesser L R V Ramos A M Garcia |
| Affiliation: | 1. Ichthyology Laboratory, Oceanography Institute, Rio Grande Federal University, PO box 474, Rio Grande, RS, Brazil;2. Laboratório de Piscicultura Estuarina e Marinha, Instituto de Oceanografia, Universidade Federal do Rio Grande, Caixa Postal 474, Rio Grande, Rio Grande do Sul, Brazil;3. Laboratório de Nutri??o de Organismos Aquáticos, Instituto de Oceanografia, Universidade Federal do Rio Grande, Caixa Postal 474, Rio Grande, Rio Grande do Sul, Brazil |
| Abstract: | The aim of this study was to determine the isotopic‐turnover rate (RIT) and trophic‐discrimination factor (FTD) in muscle tissues of Lebranche mullet Mugil liza fed an experimental diet (δ13C = ?27·1‰; δ15N = 1·0‰). Juvenile M. liza exhibited a relatively fast RIT, with a half‐life (t50) of only 16 and 14 days for δ13C and δ15N respectively and a nearly complete isotopic turnover (t95) of 68 and 60 days for δ13C and δ15N. |
| Keywords: | carbon and nitrogen stable isotopes controlled diet experiments marine‐estuarine dependent species |
