AustralieFrV1, Main, Exploration, bibRecord, 004E87

Impacts of shrimp farm effluent on water quality, benthic metabolism and N-dynamics in a mangrove forest (New Caledonia)

Identifieur interne : 004E87 ( Main/Exploration ); précédent : 004E86; suivant : 004E88

Impacts of shrimp farm effluent on water quality, benthic metabolism and N-dynamics in a mangrove forest (New Caledonia)

Auteurs : Nathalie Molnar [France] ; David T. Welsh [Australie] ; Cyril Marchand [France] ; Jonathan Deborde [France] ; Tarik Meziane [France]

Source :

Estuarine, coastal and shelf science : (Print) [ 0272-7714 ] ; 2013.

RBID : Pascal:13-0111765

Descripteurs français

Pascal (Inist)
- Crevette, Effluent, Qualité eau, Zone benthique, Métabolisme, Dynamique, Forêt tropicale, Nouvelle Calédonie, Mangrove, Nutriment, Dénitrification, Milieu saumâtre.
Wicri :
- topic : Forêt tropicale.

English descriptors

KwdEn :
- Benthic zone, Brackish water environment, Denitrification, Dynamics, Effluent, Mangrove, Metabolism, New Caledonia, Nutrient, Shrimp, Tropical forest, Water quality.

Abstract

Water quality parameters, sediment oxygen demand (SOD), dissolved organic and inorganic nutrient fluxes, and N-cycle processes (nitrification; denitrification; dissimilatory nitrate reduction to ammonium (DNRA)) were determined in a New Caledonian mangrove receiving shrimp farm effluent and a natural mangrove. Effluent was enriched in nutrients and organic matter, and significantly stimulated SOD and nutrient regeneration rates in the receiving sediments. All N-cycling processes were stimulated between ∼ 2 and 12-fold in the sediments receiving effluents compared to the natural mangrove. However, due to the preferential enhancement of DNRA compared to denitrification, there was no significant increase in net nitrogen elimination compared to the significant increase in sediment nutrient regeneration rates. These results indicate that the mangroves are only a partial filter for the shrimp farm effluent, as confirmed by the elevated nutrient concentrations measured in an external, marine creek of the effluent receiving mangrove.

Affiliations:

Links toward previous steps (curation, corpus...)

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to stream PascalFrancis, to step Curation: 005290
to stream PascalFrancis, to step Checkpoint: 000884
to stream Main, to step Merge: 005058
to stream Main, to step Curation: 004E87

Le document en format XML

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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Benthic zone</term>
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<term>Dynamics</term>
<term>Effluent</term>
<term>Mangrove</term>
<term>Metabolism</term>
<term>New Caledonia</term>
<term>Nutrient</term>
<term>Shrimp</term>
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<term>Dynamique</term>
<term>Forêt tropicale</term>
<term>Nouvelle Calédonie</term>
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<term>Nutriment</term>
<term>Dénitrification</term>
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<front><div type="abstract" xml:lang="en">Water quality parameters, sediment oxygen demand (SOD), dissolved organic and inorganic nutrient fluxes, and N-cycle processes (nitrification; denitrification; dissimilatory nitrate reduction to ammonium (DNRA)) were determined in a New Caledonian mangrove receiving shrimp farm effluent and a natural mangrove. Effluent was enriched in nutrients and organic matter, and significantly stimulated SOD and nutrient regeneration rates in the receiving sediments. All N-cycling processes were stimulated between ∼ 2 and 12-fold in the sediments receiving effluents compared to the natural mangrove. However, due to the preferential enhancement of DNRA compared to denitrification, there was no significant increase in net nitrogen elimination compared to the significant increase in sediment nutrient regeneration rates. These results indicate that the mangroves are only a partial filter for the shrimp farm effluent, as confirmed by the elevated nutrient concentrations measured in an external, marine creek of the effluent receiving mangrove.</div>
</front>
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Impacts of shrimp farm effluent on water quality, benthic metabolism and N-dynamics in a mangrove forest (New Caledonia)

Impacts of shrimp farm effluent on water quality, benthic metabolism and N-dynamics in a mangrove forest (New Caledonia)

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri