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Registros recuperados: 4
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Analyse de la variabilité spatio-temporelle des populations microalgales côtières observées par le REseau de surveillance du PHYtoplancton et des phycotoxines (REPHY) ArchiMer
Gailhard, Isabelle.
The dynamic of coastal marine microphytoplankton communities is characterized by successions of species assemblages displaying typical schemes of spatio-temporal variability. Numerous studies of phytoplankton spatio-temporal variability have concerned holistic variables such as total biomass or primary production. Such studies deal with the role of primary producers in the global functioning of the pelagic ecosystem, but have little relevance to other problematics. For instance, knowledge of the taxonomic composition of phytoplankton communities and of their spatio-temporal patterns is necessary to understand the mechanisms favouring of the predominance of a precisely identified population within phytoplankton communities. In particular, the identification...
Tipo: Text Palavras-chave: Multivariate statistical analyses; Hydroclimatic factors; Geographical distribution; Temporal Variability; French coasts; Microphytoplankton; Méthodes statistiques multivariées; Facteurs hydroclimatiques; Distribution géographique; Variabilité temporelle; Littoral français; Microphytoplancton.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/these-7.pdf
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Atlas des Diatomophycées des côtes françaises et des aires marines adjacentes ArchiMer
Paulmier, Gerard.
This Atlas puts the list of main diatoms from phytoplanktonic collects carried out in the French waters and bordering marine areas. A simple key of genera is set up and listed species are illustrated by photographies obtained with light microscope, and by drawings.
Tipo: Text Palavras-chave: Iconographie list; Mediterranean See; Channel; Atlantic; French coasts; Diatoms; Liste iconographique; Méditerranée; Manche; Atlantique; Côtes françaises; Diatomées; Diatomophycées.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/rapport-2452.pdf
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Bilan 1992 de la contamination des côtes françaises par les composés organostanniques ArchiMer
Michel, Pierre; Averty, Bernard.
Au cours du printemps 1992, un échantillonnage systématique a permis d'évaluer le niveau de la contamination des côtes françaises par les composés organostanniques. Le tributyl étain (TBT) a été mesuré dans la phase dissoute avec ses produits de dégradation dibutyl étain (DBT) et monobutyl étain (MBT). Les concentrations mesurées restent importantes dans les zones portuaires et les zones de mélanges. Ces concentrations sont le plus souvent excessives lorsqu'on se réfère au seuil toxique de 1ng.1-1 pour lequel des effets sont connus sur l'huître et certains autres mollusques. Les trois façades maritimes françaises ont été contôlées ; c'est en Méditerranée que l'on peut observer les plus fortes concentrations. En plus du TBT et de ses métabolites, on a aussi...
Tipo: Text Palavras-chave: Tributyl étain; Dibutyl étain; Monobutyl étain; Triphényl étain; Composés organostanniques; Eau de mer; France.; Tributyltin; Dibutyltin; Monobutyltin; Triphenyltin; Organotin compounds; Seawater; French coasts.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00104/21530/19111.pdf
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Phycotoxin monitoring in France : risk-based strategy and main results (2006-2008) ArchiMer
Belin, Catherine; Amzil, Zouher.
Toxin monitoring is carried out along the coasts of France by a national network, REPHY, which is the National Monitoring Network for Phytoplankton and Phycotoxins. Sampling strategy differs according to the type of zone coastal or offshore and to the family of toxins. For PSP and ASP toxins, monitoring is based on the detection of toxic phytoplankton species. For lipophilic toxins, a systematic analysis of toxins is performed in risk areas during high risk periods. Experimental monitoring for palytoxins has also been conducted along the Mediterranean coast since 2007. The total number of toxin analyses is in the order of 2500 to 3000 per year. The detailed results for each family of toxins showed that the most frequent toxic events for the period from...
Tipo: Text Palavras-chave: Monitoring; Phytoplankton; Toxin; Sampling; Shellfish; French coasts.
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00077/18821/16398.pdf
Registros recuperados: 4
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