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Registros recuperados: 31
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Biosensors for the detection and monitoring of Alexandrium minutum along the French coasts ArchiMer
Antoine, Elisabeth; Compere, Chantal; Cosnier, Serge; Crassous, Marie-pierre; Derbal, Hassina; Erard-le Denn, Evelyne; Gondran, Chantal; Guilminot, Elodie; Lehaitre, Michel; Mazeas, Florence; Moreau, Hervé; Perrot, Hubert; Pradier, Claire-marie; Salmain, Michèle.
The microalgae Alexandrium minutum produces neurotoxins responsible for paralytic shellfish poisoning, which upon accumulation in shellfish represent a human health risk. This species recurrently forms toxic blooms in the Northern part of the French Brittany coast. At present, algae identification relies on tedious microscope observations mostly performed by skilled taxonomists in laboratories. Newly emerging fields of molecular taxonomy, nanoscale technology and biotechnology offer opportunities for the development of in-situ biosensors for the detection and the monitoring of toxic algae.
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Ano: 2003 URL: http://archimer.ifremer.fr/doc/00089/19986/17650.pdf
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Competition for phosphorus between two dinoflagellates: A toxic Alexandrium minutum and a non-toxic Heterocapsa triquetra ArchiMer
Labry, Claire; Erard-le Denn, Evelyne; Chapelle, Annie; Fauchot, Juliette; Youenou, Agnes; Crassous, Marie-pierre; Le Grand, Jacqueline; Lorgeoux, Benedicte.
The understanding of the dominance of one species with respect to others is a pertinent challenge in HAB growth dynamics studies and the nutrient supply mode is one of the factors potentially involved. The competition for phosphorus (P) between a toxic species, Alexandrium minutum, and a non-toxic species, Heterocapsa triquetra, was studied (1) along a gradient of P depletion, (2) testing different P depletion degrees before a single PO4 supply and (3) experimenting different PO4 supply frequencies. In conditions Of PO4 depletion, H. triquetra stopped growing after two days both in monospecific and mixed batch cultures whereas A. minutum grew progressively from day 2 until the end of the experiment. This time-lag growth of A. minutum is associated to its...
Tipo: Text Palavras-chave: Semi continuous culture; Batch culture; Ecophysiology; Pulse; Phosphorus storage; Dinoflagellates; Heterocapsa triquetra; Alexandrium minutum.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4067.pdf
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Dragages et environnement marin Etat des connaissances ArchiMer
Alzieu, Claude; Abarnou, Alain; Bassoullet, Philippe; Boutier, Bernard; Chiffoleau, Jean-francois; Crenn, Isabelle; Derrien, Annick; Erard-le Denn, Evelyne; Gourmelon, Michele; Guiliaud, Jean-françois; Silva Jacinto, Ricardo; Le Cann, Pierre; Le Guyader, Françoise; Le Hir, Pierre; L'Yavanc, Jacky; Mauvais, Jean-louis; Menard, Dominique; Michel, Pierre; Monbet, Yves; Pommepuy, Monique; Quiniou, Francoise.
Port activities require continuous or occasional dredging of considerable quantities of sediments : approximately 50 million m3 along the French coastline. A large proportion of the dredgings is authorized for dumping at sea in geographically delimited areas and following an impact evaluation of their potential harmfulness to the marine environment. The environmental risks assessment linked to dredging operations relies on knowledge related to several scientific disciplines contributing to changes in the regulations. This work, intended both for managers and for environmental scientists and engineers, is designed to take stock of the current state-of-the-art in the field of sediment contamination and related ecotoxicological hazards, along with a review of...
Tipo: Text Palavras-chave: Regulations; Management; Impact; Contaminants; Dredging; Réglementation; Gestion; Impact; Contaminants; Dragages.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/1999/rapport-1040.pdf
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Etude bibliographique de quelques espèces planctoniques et benthiques littorales de la Manche - Volume 1 - Espèces phytoplanctoniques ArchiMer
Erard-le Denn, Evelyne; Populus, Jacques.
This catalogue deals mainly with common phytoplanktonic species found in the Channel. It is part of a bibliographical survey on pelagos and benthos. The main idea was to gather the largest possible amount of data on the eco-physiology of each species. To do so, studies were conducted in the main marine region where the species had been found and analysed. We focused on several reference ecological studies conducted in the coastal Channel, on the E.D.F. sites, by the C.N.E.X.O., the I.S.T.P.M. and some university laboratories. A great attention was also paid to the studies on seasonal cycles carried out in laboratories in Plymouth, Helgoland and in the Irish zones. (unverified OCR)
Tipo: Text Palavras-chave: Physiology; Ecology; Bentic; Coastal species; English Channel sea; Phytoplanktonic species; Physiologie; Ecologie; Benthiques; Espèces littorales; Manche; Espèces phytoplanctoniques.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/rapport-3701.pdf
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Etude écophysiologique et paramétrisation du rôle du phosphore sur la croissance d'Alexandrium minutum, espèce responsable d'eaux colorées toxiques en estuaire de Penzé, et de son principal compétiteur Heterocapsa triquetra - Rapport final PNEC-ART3 ArchiMer
Labry, Claire; Erard-le Denn, Evelyne; Chapelle, Annie; Youenou, Agnes; Crassous, Marie Pierre; Martin-jezequel, Véronique; Le Grand, Jacqueline.
Suite à un premier criblage des facteurs environnementaux favorables à la croissance d'Alexandrium minutum comparativement à celle d'une espèce compétitrice en rivière de Penzé, Heterocapsa triquetra (rapport ART3 2002-2003) cette étude vise à préciser et quantifier les réponses physiologiques respectives des deux espèces à différentes conditions d'apports en phosphate (taux de croissance, vitesse d'assimilation des phosphates, capacité à stocker le phosphore intracellulaire). Elle montre qu'Alexandrium minutum a plutôt une stratégie de « stockage », capable d'assimiler rapidement le phosphate après un apport mais le stockant pour une meilleure croissance ultérieure quand la ressource sera à nouveau épuisée. Comparativement, Heterocapsa triquetra aurait,...
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Ano: 2004 URL: http://archimer.ifremer.fr/doc/00105/21598/19178.pdf
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Le phytoplancton nuisible des côtes de France. De la biologie à la prévention ArchiMer
Belin, Catherine; Berland, Brigitte; Erard-le Denn, Evelyne; Gentien, Patrick; Grzebyk, Daniel; Marcaillou Le Baut, Claire; Lassus, Patrick; Partensky, Frédéric.
Several phyloplankton species, whelher hloom-forming or not, have caused jish kilts or human intoxications or other nuisances on the coasts of France for the past ten years. The present review considers them under the foltowing aspects: morphology, cytology, physiology, hiochemislry, geographical distrihution, ecological requirements, toxicity and/or nuisances. These are principally the Dinoflagellates Dinophysis spp., Gymnodinium cf nagasakiense (= Gyrodinium cf aureolum) and Alexandrium minutum, and the Prymnesiophyte Phaeocystis spp. .. in addition, Ihree presumahly toxic species which were recently found on the French coasts are examined, namely : the Dinoflageltates Prorocentrum minimum and Gymnodinium spirale and the Silicoflageltate Dictyocha. Toxic...
Tipo: Text
Ano: 1991 URL: https://archimer.ifremer.fr/doc/1991/rapport-4210.pdf
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Nuisances et intoxications causées en France par le phytoplancton et les "efflorescences" marines - Synthèse préliminaire ArchiMer
Sournia, A.; Belin, Catherine; Berland, B.; Erard-le Denn, Evelyne; Grzebyk, Daniel; Marcaillou-le Baut, Claire; Lassus, Patrick; Partensky, F..
Les intoxications humaines résultant de la consommation de coquillages sont connues en France depuis plusieurs siècles. On peut supposer que la cause principale a d'abord été d'origine bactériologique, eu égard aux conditions de transport et à l'absence de contrôles de salubrité dans le passé. Quoi qu'il en soit, il faut compter aujourd'hui avec une autre origine, à savoir les proliférations de certaines algues unicellulaires planctoniques (phytoplancton), qui causent dans notre pays jusqu'à plusieurs milliers d'intoxications par an. Soulignons que la France a été jusqu'ici largement épargnée, puisque d'autres pays comptabilisent des dizaines ou centaines de décès depuis le début du siècle. On vient toutefois de découvrir la présence dans nos eaux côtières...
Tipo: Text
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00069/18017/15569.pdf
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Planktonic ecosystems in the channel - trophic relations ArchiMer
Lehoerff, Genevieve; Erard-le Denn, Evelyne; Arzul, Genevieve.
Four planktonic coastal ecosystems from the western Channel to the southern part of the North Sea have been compared. The characteristics of the south of the North Sea are a very high planktonic biomass with an annual maximum value of 45 mg C m-3 h-1 for primary production, a maximum of 11 mg m-3 for Chlorophyll a and 60 mg C m-3 for zooplanktonic biomass (expressed in term of carbon weight), linked with an oscillating ecosystem. In the western Channel primary production shows an annual maximum value of 8 mg C m-3 h-1, die chlorophyll a, a maximum of 2.5 mg m-3 and zooplanktonic carbon weight of 14 mg C m-3 linked to a greater inertia in the system. Turnover is faster in the north. Trophic efficiency ratios have been calculated and linked to hydrodynamic...
Tipo: Text Palavras-chave: CHANNEL; COASTAL WATER ECOSYSTEM; PLANKTONIC BIOMASS; TROPHIC EFFICIENCY; IMPACT.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00100/21130/18750.pdf
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Succession saisonnière des populations phytoplanctoniques des eaux côtières de la Manche ArchiMer
Ryckaert, Mireille; Gros, Philippe; Erard-le Denn, Evelyne.
Quantitative microphytoplankton samples were collected from shallow-water coastal stations in Channel between 1976 and 1980. The aim of the study is to describe the seasonal succession of the populations with respect to some physico-chemical parameters, i. e. to relatate the distribution of abundance to hydrographic seasons. We build a contigency table (species x environmental variables, both under disjunctive coding), which is described by correspondence analysis (reciprocal averaging). The results show the main features of the annual changes in the community dominated by diatoms
Tipo: Text Palavras-chave: Microphytoplancton côtier; Successions saisonnières; Analyse des correspondances; Coastal microphytoplankton; Seasonal successions; Correspondence analysis.
Ano: 1983 URL: http://archimer.ifremer.fr/doc/00139/25075/23180.pdf
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Surveillance écologique et halieutique de l'environnement marin du site de la centrale de Penly (Manche Est) : Année 1988 ArchiMer
Arzul, Genevieve; Dreves, Luc; Erard-le Denn, Evelyne; Clabault, Philippe; Halgand, Daniel; Quiniou, Françoise; Tetard, Alain; Vincke, Marie-claude.
La surveillance n° 2 sur le site de PENLY couvre la période d'avril 88 à octobre 88. Les domaines étudiés sont : l'hydrologie, la microbiologie, le plancton végétal et animal, la géologie, le zoobenthos intertidal et sublittoral, le domaine halieutique.
Tipo: Text Palavras-chave: Pelagos; Benthos; Halieutique; Centrale nucléaire; Surveillance; Pelagos; Benthos; Fishing; Power plant; Surveillance.
Ano: 1993 URL: https://archimer.ifremer.fr/doc/00432/54390/55720.pdf
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Surveillance écologique et halieutique de l'environnement marin du site de la centrale de Penly (Manche Est) : Année 1990 ArchiMer
Arzul, Geneviève; Erard-le Denn, Evelyne; Halgand, Daniel; Quiniou, Francoise; Tetard, Alain; Toularastel, France; Vincke, Marie-claude.
Surveillance n°1, 2nd phase, of PENLY nuclear power-plant takes In account studies between April and September 1990. Hydrology, microbiology, phytoplankton, zooplankton, fishing are studied.
Tipo: Text Palavras-chave: Pelagos; Halieutique; Centrale nucléaire; Surveillance; Pelagos; FIshing; Nuclear power plant; Monitoring.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/00432/54392/55722.pdf
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Surveillance écologique et halieutique de l'environnement marin du site de la centrale de Penly (Manche est) : année 1999 ArchiMer
Halgand, Daniel; Arzul, Genevieve; Cochard, Marie-laure; Erard-le Denn, Evelyne; Huet, Jerome; Le Claire, Jacques; Quiniou, Francoise.
Monitoring n°10, 2nd phase, of PENLY nuclear power - plant takes in account studies between March and september 1999. Hydrology, microbiology,phytoplankton, zooplankton and fishing are studied.
Tipo: Text Palavras-chave: Pelagos; Halieutique; Centrale nucléaire; Surveillance; Pelagos; Fishing; Nuclear power plant; Monitoring.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/00080/19075/16670.pdf
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Surveillance écologique et halieutique de l'environnement marin du site de la centrale de Penly (Manche est) : année 2000 ArchiMer
Halgand, Daniel; Arzul, Genevieve; Cochard, Marie-laure; Erard-le Denn, Evelyne; Huet, Jerome; Dorobisz, Laurence; Rumebe, Myriam.
Monitoring n°11, 2nd phase, of PENLY nuclear power - plant takes in account studies between April and September 2000. Hydrology, microbiology,phytoplankton, zooplankton and fishing are studied.
Tipo: Text Palavras-chave: Pelagos; Halieutique; Centrale nucléaire; Surveillance; Pelagos; Fishing; Nuclear power plant; Monitoring.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00079/19074/16669.pdf
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Surveillance écologique et halieutique du site de Flamanville. Année 1993 ArchiMer
Dreves, Luc; Erard-le Denn, Evelyne; Lunven, Michel; Martin, Jocelyne; Miossec, Dominique; Piriou, Jean-yves; Quintin, Jean-yves.
Surveillance n° 11 of FLAMANVILLE power plant takes in account studies between march 1993 and september 1993. Hydrology, microbiology, phytoplankton, zooplankton, intertidal phytobenthos et zoobenthos, and fishing are studied. The year 1993 is the eighth year of working for this power plant. (NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Monitoring; Power plant; Pelagos; Fishing; Benthos; Surveillance; Pelagos; Halieutique; Centrale nucléaire; Benthos.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/1994/rapport-6825.pdf
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Surveillance écologique et halieutique du site de Flamanville. Année 1994 ArchiMer
Dreves, Luc; Quintin, Jean-yves; Erard-le Denn, Evelyne; Lunven, Michel; Martin, Jocelyne; Miossec, Dominique.
Monitoring n°12 of the FLAMANVILLE nuclear power plant takes into account studies conducted between March and September 1994. Hydrology microbiology, phytoplankton, zooplankton, intertidal phytobenthos and zoobenthos, and fishing are reported. 1994 is the ninth year of operation for this power plant. [NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Surveillance; Pelagos; Halieutique; Centrale nucléaire; Benthos; Monitoring; Power plant; Pelagos; Fishing; Benthos.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/1995/rapport-6826.pdf
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Surveillance écologique et halieutique du site de Flamanville. Année 1995 ArchiMer
Dreves, Luc; Martin, Jocelyne; Erard-le Denn, Evelyne; Lunven, Michel; Miossec, Dominique; Quintin, Jean-yves.
Monitoring n°13 of the FLAMANVILLE nuclear power plant takes into account studies conducted between March and September 1995. Hydrology microbiology, phytoplankto~ zooplankto~ f1shing, intertidal phytobenthos and zoobenthos are reported. This power plant is in operation for ten years. [NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Monitoring; Power plant; Pelagos; Fishing; Benthos; Surveillance; Pelagos; Halieutique; Centrale nucléaire; Benthos.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/1996/rapport-6827.pdf
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Surveillance écologique et halieutique du site de Flamanville. Année 1996 ArchiMer
Dreves, Luc; Erard-le Denn, Evelyne; Lunven, Michel; Martin, Jocelyne; Miossec, Dominique; Quintin, Jean-yves.
Monitoring n°14 of the FLAMANVILLE nuclear power plant takes into account studies conducted between March and September 1996. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for eleven years.
Tipo: Text Palavras-chave: Centrale nucléaire; Flamanville; Surveillance; Benthos; Halieutique; Pelagos; Flamanville; Monitoring; Nuclear power plant; Benthos; Fisheries; Pelagos.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00005/11658/8317.pdf
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Surveillance écologique et halieutique du site de Flamanville. Année 1997 ArchiMer
Dreves, Luc; Erard-le Denn, Evelyne; Lunven, Michel; Martin, Jocelyne; Miossec, Dominique; Quintin, Jean-yves.
Monitoring n°l5 of the FLAMANVILLE nuclear power plant takes into account studies conducted between March and September 1997. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported This power plant has been in operation for twelve years. [NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Pelagos; Fisheries; Benthos; Nuclear power plant; Monitoring; Flamanville; Pelagos; Halieutique; Benthos; Surveillance; Flamanville; Centrale nucléaire.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/1998/rapport-6875.pdf
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Surveillance écologique et halieutique du site électronucléaire de Flamanville. Année 1998 ArchiMer
Dreves, Luc; Erard-le Denn, Evelyne; Lunven, Michel; Martin, Jocelyne; Miossec, Dominique; Quintin, Jean-yves.
Monitoring n°16 of the Flamanville nuclear power plant takes into account studies conducted between March and September 1998. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for thirteen years. [NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Pelagos; Fisheries; Benthos; Nuclear power plant; Monitoring; Flamanville; Pelagos; Halieutique; Benthos; Surveillance; Flamanville; Centrale nucléaire.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/1999/rapport-6876.pdf
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Surveillance écologique et halieutique du site électronucléaire de Flamanville. Année 1999 ArchiMer
Dreves, Luc; Erard-le Denn, Evelyne; Gaffet, Jean-dominique; Lunven, Michel; Martin, Jocelyne; Miossec, Dominique; Quintin, Jean-yves.
Monitoring n°17 of the Flamanville nuclear power plant takes into account studies conducted between March and September 1999. Impacts on hydrology, microbiology, phytoplankton, zooplankton, fisheries, intertidal phytobenthos and zoobenthos are reported. This power plant has been in operation for fourteen years. [NOT CONTROLLED OCR]
Tipo: Text Palavras-chave: Pelagos; Fisheries; Benthos; Nuclear power plant; Monitoring; Flamanville; Pelagos; Halieutique; Benthos; Surveillance; Flamanville; Centrale nucléaire.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/rapport-6877.pdf
Registros recuperados: 31
Primeira ... 12 ... Última
 

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