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Meiofauna distribution in a mangrove forest exposed to shrimp farm effluents (New Caledonia) ArchiMer
Della Patrona, Luc; Marchand, C.; Hubas, C.; Molnar, N.; Deborde, J.; Meziane, T..
Meiofauna abundance, biomass and individual size were studied in mangrove sediments subjected to shrimp farm effluents in New Caledonia. Two strategies were developed: i) meiofauna examination during the active (AP) and the non-active (NAP) periods of the farm in five mangrove stands characteristics of the mangrove zonation along this coastline, ii) meiofauna examination every two months during one year in the stand the closest to the pond (i.e. Avicennia marina). Thirteen taxonomic groups of meiofauna were identified, with nematodes and copepods being the most abundant ones. Meiofauna abundance and biomass increased from the land side to the sea side of the mangrove probably as a result of the increased length of tidal immersion. Abundance of total...
Tipo: Text Palavras-chave: Mangrove; Meiofauna; Shrimp farming; Environmental status; New Caledonia.
Ano: 2016 URL: https://archimer.ifremer.fr/doc/00341/45170/44620.pdf
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Spatial and temporal CO2 exchanges measured by Eddy Covariance over a temperate intertidal flat and their relationships to net ecosystem production ArchiMer
Polsenaere, P; Lamaud, E.; Lafon, V.; Bonnefond, J. -m.; Bretel, P; Delille, B.; Deborde, J.; Loustau, D.; Abril, G..
Measurements of carbon dioxide fluxes were performed over a temperate intertidal mudflat in southwestern France using the micrometeorological Eddy Covariance (EC) technique. EC measurements were carried out in two contrasting sites of the Arcachon flat during four periods and in three different seasons (autumn 2007, summer 2008, autumn 2008 and spring 2009). In addition, satellite images of the tidal flat at low tide were used to link the net ecosystem CO2 exchange (NEE) with the occupation of the mudflat by primary producers, particularly by Zostera noltii meadows. CO2 fluxes during the four deployments showed important spatial and temporal variations, with the flat rapidly shifting from sink to source with the tide. Absolute CO2 fluxes showed generally...
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Ano: 2012 URL: https://archimer.ifremer.fr/doc/00603/71534/69947.pdf
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