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Application de l'analyse spectrale par maximisation de l'entropie dans la description des séries brèves en écologie marine ArchiMer
Calmet, D; Charmasson, Sabine; Blanc, Frederique.
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Ano: 1984 URL: http://archimer.ifremer.fr/doc/00113/22452/20139.pdf
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Le suivi de l'état des récifs coralliens de Polynésie Française et leur récente évolution ArchiMer
Salvat, B; Aubanel, A; Adjeroud, M; Bouisset, P; Calmet, D; Chancerelle, Y; Cochennec, Nathalie; Davies, N; Fougerousse, A; Galzin, R; Lagouy, E; Lo, C; Monier, Christele; Ponsonnet, C; Remoissenet, G; Schneider, D; Stein, A; Tatarata, M; Villiers, L.
Monitoring of French Polynesia coral reefs and their recent development.-French Polynesia, consisting of 118 islands in the centre of the Pacific Ocean, has more than 15 000 km(2) of reefs and lagoons managed by the local government. Tourism and pearl culture are the two main economic resources of the country. Polynesian coral reefs are extremely diverse and are among those for which we have thorough knowledge. The exploitation of local resources has been recorded for multiple decades and includes : coral materials, fishing, harvest and export of mother-of-pearl molluscs, pearl production, and ornamental fish. All over the country, many monitoring programmes have been launched to measure the health of reefs and the natural and anthropogenic perturbations...
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Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4558.pdf
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Perturbations spatio-temporelles anthropiques sur l'ecosysteme marseillais ArchiMer
Calmet, D; Charmasson, S; Blanc, F.
A chronological analysis of the disturbances caused to a pelagical ecosystem by domestic and industrial outfalls discharged on the surface of the coastal waters is done. Chronological series of various sampled parameters give evidence two fundamental components, a daily one (the trend) and the other one characterized by a periodicity of about 6 h, both linked to the different phases of human activities. Cross spectral analysis applied to salinity and phytoplankton series has pointed out a 50 min delay in the answer of phytoplankton communities to the periodical salinity variations. The use of the spectral principal components analysis allowed a description of the "hydrological" structure of the studied pelagical environment associated with 3 different...
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Ano: 1983 URL: http://archimer.ifremer.fr/doc/00247/35798/34311.pdf
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