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Seasonal Pattern of the Biogeochemical Properties of Mangrove Sediments Receiving Shrimp Farm Effluents (New Caledonia) ArchiMer
Marchand, Cyril; Molnar, N.; Deborde, Jonathan; Della Patrona, Luc; Meziane, Tarik.
Coastal tropical shrimp farming may impact the adjacent ecosystems through the release of large quantities of effluents rich in nutrients. In New Caledonia, mangroves are considered as a natural biofilter to reduce impacts on the surrounding World Heritage listed lagoon. Our main objective was to understand the influence of effluent discharge on the biogeochemistry of mangrove sediments. A monitoring of the physico-chemical parameters of mangrove sediments was carried out during a whole year, including active and non active periods of the farm. The parameters studied were: i) benthic primary production (Chl-a concentrations), ii) physico-chemical parameters of sediments (redox potential, pH, salinity, TOC, TN, TS, δ13C and δ15N), iii) concentrations of...
Tipo: Text Palavras-chave: Shrimp farming; Effluents; Mangrove; Sediment biogeochemistry; New Caledonia.
Ano: 2014 URL: https://archimer.ifremer.fr/doc/00251/36253/34801.pdf
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