| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Temporal variability of benthic-pelagic coupling in shallow enclosed environment: A case study with eutrophying shrimp ponds
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| Autores: |
Hochard, Sébastien
Royer, Florence
Hubert, Morgane
Lemonnier, Hugues
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| Data: |
2019-04
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| Ano: |
2019
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| Palavras-chave: |
Tropical aquaculture
Shrimp
Eutrophication
Benthic-pelagic coupling
Microphytobenthos
Bioturbation
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| Resumo: |
The evolution of benthic pelagic coupling was followed in two semi-intensive shrimp ponds in New Caledonia, with a special emphasis on the role of microphytobenthos (MPB). Three distinct periods could be identified. During the first period, MPB activity led to relative decoupling between the water column and the sediment, both compartments being autotrophic with low nutrients exchanges. During the second period, the sediment operated at the edge of a functional switch between autotrophy and heterotrophy. The amplitude of nutrient fluxes depended of the pool considered (DIN, DIP) and showed light dark variation. In the last period, sediment switched to heterotrophy with the establishment of benthic-pelagic coupling concomitantly to a massive sediment resuspension due to the shrimp activity. These findings should be considered for the management of aquaculture ponds and shallow enclosed water bodies.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00485/59681/62754.pdf
DOI:10.1016/j.marenvres.2019.03.005
https://archimer.ifremer.fr/doc/00485/59681/
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| Editor: |
Elsevier BV
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| Formato: |
application/pdf
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| Fonte: |
Marine Environmental Research (0141-1136) (Elsevier BV), 2019-04 , Vol. 146 , P. 46-56
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| Direitos: |
info:eu-repo/semantics/openAccess
restricted use
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