Aime Joanne auteur aut IRD Alenbach M. auteur aut IRD Bourgeois C. auteur aut IRD Leopold A. auteur aut IRD Jacotot A. auteur aut IRD Vinh T. V. auteur aut IRD Nho N. T. auteur aut IRD Della Patrona L. auteur aut IRD Marchand Cyril auteur aut IRD text journalArticle eng text/pdf born digital access In New Caledonia, shrimp ponds are built not on cleared mangroves but on salt flats behind the mangroves. The objectives of this study were to determine the variability of CO2 fluxes from a semi-intensive shrimp pond during active and non-active periods of the farm and to determine the carbon dynamics from the upstream tidal creek to the downstream creek, which receives the farm's effluents. CO2 emissions from the active pond were estimated at 11.1 5.26 mmol CO2 m(-2) d(-1). By modifying the hydrodynamics of the creeks, farm practices also influenced CO2 emissions from both the upstream and downstream creeks. After tillage, all the organic carbon deposited at the pond bottom during the active period was mineralized, resulting in CO2 emissions to the atmosphere estimated at 7.9 TCO2 ha(-1). Therefore, shrimp farming is an anthropogenic source of CO2 to the atmosphere, but suitable and optimized rearing practices limit these emissions. specialized Shrimp farming Aquaculture practices Greenhouse gas Mangrove Effluents New Caledonia NOUVELLE CALEDONIE 040 038 129 1 194-206 2018 0025-326X https://www.documentation.ird.fr/hor/fdi:010073061 10.1016/j.marpolbul.2018.02.025 0025-326X [F B010073061] https://www.documentation.ird.fr/hor/fdi:010073061 https://www.documentation.ird.fr/intranet/publi/2018/06/010073061.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2018-07-03 2023-07-11 fdi:010073061 fre