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Modèle mathémathique sur la nitrification et le cycle de l'oxygène dissous en estuaire de la Seine ArchiMer
Romana, Louis-alexandre; Thouvenin, Benedicte; Sammari, Cherif.
L'étude proposée dans ce document est basée sur l'application, dans l'estuaire de la Seine, d'un modèle unidimensionnel, non-stationnaire, reproduisant le cycle de l'oxygène dissous et les différents paramètres qui y contribuent. Le but est d'obtenir un outil fiable permettant de tester l'importance respective des phénomènes et de mettre en évidence les processus pour lesquels la communauté scientifique manque d'informations.
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Ano: 1992 URL: http://archimer.ifremer.fr/doc/00081/19228/16823.pdf
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Spatial and temporal variability of zooplankton off New Caledonia (Southwestern Pacific) from acoustics and net measurements ArchiMer
Smeti, Houssem; Pagano, Marc; Menkes, Christophe; Lebourges-dhaussy, Anne; Hunt, Brian P. V.; Allain, Valerie; Rodier, Martine; De Boissieu, Florian; Kestenare, Elodie; Sammari, Cherif.
Spatial and temporal distribution of zooplankton off New Caledonia in the eastern Coral Sea was studied during two multidisciplinary cruises in 2011, during the cool and the hot seasons. Acoustic measurements of zooplankton were made using a shipborne acoustic Doppler current profiler (S-ADCP), a scientific echosounder and a Tracor acoustic profiling system (TAPS). Relative backscatter from ADCP was converted to biomass estimates using zooplankton weights from net-samples collected during the cruises. Zooplankton biomass was estimated using four methods: weighing, digital imaging (ZooScan), ADCP and TAPS. Significant correlations were found between the different biomass estimators and between the backscatters of the ADCP and the echosounder. There was a...
Tipo: Text Palavras-chave: South Pacific; Acoustics; Zooplankton; Vertical migration; Water masses; Mesoscale dynamics.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00297/40809/39836.pdf
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Western Mediterranean coastal waters-Monitoring PCBs and pesticides accumulation in Mytilus galloprovincialis by active mussel watching: the Mytilos project ArchiMer
Scarpato, Alfonso; Romanelli, Giulia; Galgani, Francois; Andral, Bruno; Amici, Marina; Giordano, Pierpaolo; Caixach, Josep; Calvo, Monica; Antonio Campillo, Juan; Benedicto Albadalejo, Jose; Cento, Alessandro; Benbrahim, Samir; Sammari, Cherif; Deudero, Salud; Boulahdid, Mostefa; Giovanardi, Franco.
In order to evaluate the contamination levels in the Western Mediterranean basin, the active mussel watch methodology has been applied. This methodology consists of mussel transplantation (Mytilus galloprovincialis) from non impacted areas to selected coastal areas, characterised by potential impact from the continent due to contaminating sources. The areas of interest were selected along the entire coastal development of the Western Mediterranean sea, 122 sites in total. The time of mussel caging exposure was 12 weeks. The project was co-financed in the frame of the Interreg IIIB Meddoc Programme, aimed at determining the overall chemical quality of the Mediterranean sea, consistent with the Water Framework Directive 2000/60. Several partners...
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Ano: 2010 URL: https://archimer.ifremer.fr/doc/00003/11381/7992.pdf
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