Foraminiferal assemblages: tools for assessment of shrimp pond conditions

Other titles Assemblages de forminifères : un outil pour l'évalutaion environnementale des bassins de crevettes
Type Poster
Date 2009-03
Language English
Other localization http://www.pacificscience.org/congress2009.html
Author(s) Debenay Jean-Pierre1, Della Patrona Luc2, Herbland Alain, Goguenheim Hemitti2, Peignon Jean-Marie2
Affiliation(s) 1 : IRD, UR 055 Paléotropique, 101 promenade Roger Laroque, BP A5, 98848 Nouméa cedex, Nouvelle-Calédonie
2 : IFREMER, LEAD Lagons, Ecosystèmes et Aquaculture Durable, BP 2059, 98846 Nouméa cedex, Nouvelle-Calédonie
Meeting PSIC 11 - 11th Pacific Science Inter-Congress : Pacific Countries and their Ocean: Facing Local and Global Changes / 2nd Symposium on French Research in the Pacific. March 2 - 6, 2009 Tahiti, French Polynesia.
Abstract Meiofauna is a functional group made of small benthic metazoans 45 to 500µm in size. Although protista, foraminifera living in this kind of environment are often put in to the meiofauna. Meiofauna has been studied in New Caledonia for its double role as biological indicator for monitoring pond health status and as shrimp forage. Suitability of EOM (easily oxidized material), SOD(sediment oxygen demand),as new biochemical tools for monitoring shrimp pond health was assessed in an environmental survey aiming to assess the role of the water/sediment interface in the occurrence of the summer syndrome vibriosis. EOM, SOD and redox were correlated with shrimp survivals. Lowest meiofauna biomass and abundance were concomitantly found in the most polluted station. Proportion of abnormal tests over exceeding the one found in areas subjected to natural ecological stress were collected and were positively related to EOM and SOD and negatively to redox. Shrimp pond dominant species are common to estuaries and lagoons. But foraminifera abnormal behaviour indicates specific shrimp pond conditions
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Debenay Jean-Pierre, Della Patrona Luc, Herbland Alain, Goguenheim Hemitti, Peignon Jean-Marie (2009). Foraminiferal assemblages: tools for assessment of shrimp pond conditions. PSIC 11 - 11th Pacific Science Inter-Congress : Pacific Countries and their Ocean: Facing Local and Global Changes / 2nd Symposium on French Research in the Pacific. March 2 - 6, 2009 Tahiti, French Polynesia. https://archimer.ifremer.fr/doc/00198/30876/