| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Underestimation of chemical contamination in marine fish muscle tissue can be reduced by considering variable wet:dry weight ratios
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| Autores: |
Cresson, Pierre
Travers-trolet, Morgane
Rouquette, Manuel
Timmerman, Charles-andre
Giraldo, Carolina
Lefebvre, Sebastien
Ernande, Bruno
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| Data: |
2017-10
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| Ano: |
2017
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| Palavras-chave: |
Wet:dry ratio
Conversion factor
Contaminant concentration
Marine fish
Percentage of humidity
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| Resumo: |
Whether considered as a risk for human health or as ecological tracers, contaminants' concentrations measured in fish muscles are commonly expressed relative to wet or dry mass. Comparison of results required conversion factors (CF) but accurate values are scarce and case-specific. The present paper is aimed at investigating errors linked with the use of the theoretical value. Muscles dry and wet masses were measured in 15 fish species to determine the actual CF. Most CF were lower than the theoretical wet:dry ratio of 5 classically used, with variations at individual and species level. Muscle lipid content (inferred by C/N ratios) was a crucial factor explaining discrepancies, claiming for caution when working with lipid-rich species. The observed variability demonstrated that using the theoretical CF may be inaccurate, when actual CF largely differs from the theoretical value. Dedicated measurement is the better approach when accuracy is required.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
http://archimer.ifremer.fr/doc/00396/50736/51456.pdf
DOI:10.1016/j.marpolbul.2017.08.046
http://archimer.ifremer.fr/doc/00396/50736/
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| Editor: |
Pergamon-elsevier Science Ltd
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| Formato: |
application/pdf
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| Fonte: |
Marine Pollution Bulletin (0025-326X) (Pergamon-elsevier Science Ltd), 2017-10 , Vol. 123 , N. 1-2 , P. 279-285
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| Direitos: |
2017 Elsevier Ltd. All rights reserved
info:eu-repo/semantics/openAccess
restricted use
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