| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Assimilation of shrimp farm sediment by Holothuria scabra : a coupled fatty acid and stable isotope approach
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| Autores: |
Mathieu-resuge, Margaux
Le Grand, Fabienne
Schaal, Gauthier
Kraffe, Edouard
Lorrain, Anne
Letourneur, Yves
Lemonnier, Hugues
Benoît, Julie
Hochard, Sébastien
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| Data: |
2020
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| Ano: |
2020
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| Palavras-chave: |
Fatty acids
Stable isotopes
Rotational co-culture
Shrimp-farming
Holothurid
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| Resumo: |
Deposit-feeding sea cucumbers are efficient nutrient recyclers and have the potential to contribute to the limitation of organic matter load in polyculture or integrated aquaculture systems. Assessing how they assimilate organic matter originating from other farmed species is therefore important for the development of such multi-species farming systems. Here, a coupled stable isotope − fatty acid approach was used to characterize the assimilation of organic matter from shrimp (Penaeus stylirostris) farming by Holothuria scabra in an experimental culture system. H. scabra were reared in mesocosms on shrimp farming-originating sediment with and without additional food sources (maize and fish meals). Although fatty acid results did indicate that shrimp-farming sediment was assimilated by holothurids, we found no evidence of maize waste and fish meal contribution to H. scabra organic carbon (no effect on δ13C, no accumulation of meal-specific fatty acids). However, a strong effect of fish meal on H. scabra δ15N was observed, suggesting that this additional food source could represent an alternative source of nitrogen for holothurids. Finally, this study supports the culture of H. scabra as a perspective to reduce sedimentary organic matter excess associated with shrimp farms, and suggest that the addition of selected food sources might contribute to increasing the content in some nitrogen organic compounds in holothurid tissues.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00624/73589/73023.pdf
DOI:10.1051/alr/2020004
https://archimer.ifremer.fr/doc/00624/73589/
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| Editor: |
EDP Sciences
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| Formato: |
application/pdf
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| Fonte: |
Aquatic Living Resources (1765-2952) (EDP Sciences), 2020 , Vol. 33 , N. 3 , P. 12p.
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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