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Nocivite relative de cinq detergents anioniques en milieu marin. 1. Toxicite aigue a l'egard de quinze organismes ArchiMer
Maggi, Pierre; Cossa, Daniel.
The acute toxicity of 5 anionic detergents towards 15 marine organisms is related in this study which indicates that fish are very susceptible while Crustacea are the most resistant animals. Phytoplankton and molluscs appear to have intermediate sensibility tothose syndets. The lethal concs of the 5 anionic detergents used in this experiences towards the most susceptible marine spp are near one mgm/l.
Tipo: Text Palavras-chave: Anguilla anguilla; Toxicity; Biodegradation; Anionic detergent.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-2154.pdf
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Nocivite relative de cinq detergents anioniques en milieu marin. 2. Relation entre la biodegradation et la toxicite aigue ArchiMer
Cossa, Daniel; Maggi, Pierre.
In this research, biodegradation associated with evaluation of the variations of acute toxicity of 5 anionic detergents towards Anguilla anguilla is described. It appears that the process of anionic detergent biodegradation in sea water is similar to the results obtained by many authors working on fresh water. The experimentation shows 2 different kinds of behavior among the 5 anionic detergents tested: (a) the first category is composed of syndets, without aryl group in their formulation, which are promptly oxidized by bacteria and do not reveal variation of acute toxicity during their biodegradation; (b) the other group includes LAS; those syndets need a quite long bacterial acclimation. On the other hand, their toxicity is reduced whilst they are...
Tipo: Text Palavras-chave: Anguilla anguilla; Toxicity; Biodegradation; Anionic detergent.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-2155.pdf
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Opération surveillance de l'incinération des composés organochlorés en mer ArchiMer
Alzieu, Claude; Maggi, Pierre.
A la demande du Ministère de l'Environnement, l'I.S.T.P.M. a participé en collaboration avec l'Institut Français du Pétrole, le Commissariat à l'Energie Atomique et le Centre National pour l'Exploration des Océans, à une campagne d'études des nuisances provoquées par les incinérations de composés organochlorés en mer.
Tipo: Text
Ano: 1974 URL: http://archimer.ifremer.fr/doc/00046/15704/13106.pdf
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Phytoplancton des zones myticoles de la baie de Vilaine et intoxication par les coquillages. ArchiMer
Andresen Leitao, Maria Da Paz; Lassus, Patrick; Maggi, Pierre; Le Baut, Claire; Chauvin, Jacky; Truouet, Philippe.
Following 1978 and 1981 human poisoning by mussels in Vilaine Bay (France) a survey of potentially toxic dinoflagellates was conducted in that area in 1982. At the same time paralytic shellfish poison (PSP) analyses were made, the authors studied the dinoflagellates encountered in the intestinal guts of mussels from January to August 1982. Results failed to demonstrate an occurrence of PSP producing species, either by toxicological analysis or dinoflagellate persistency in the mussel guts.
Tipo: Text Palavras-chave: Mytilus edulis; Bivalvia; Marine mollusks; Stomach content; Toxicity; Phytoplankton; Biological poisons; Mussel culture.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/publication-1853.pdf
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Seasonal occurrence of Dinophysis sp. along the French coast between 1983 and 1987 ArchiMer
Lassus, Patrick; Bardouil, Michele; Berthomé, Jean-paul; Maggi, Pierre; Truquet, Philippe; Le Déan, Loic.
On the basis of hydrological and biological data collected between 1983 and 1987 along the French coast, and especially in the southern approaches to Brittany. it has been possible to compare different parameters in an attempt to explain the seasonal variations of a toxic dinoflagellate: Dinophysis sp. speveral species were identified and their seasonal distribution patterns are described. The origin of the blooms, from either coastal endemic or offshore populations, is considered
Tipo: Text Palavras-chave: Dinophysis; Distribution saisonnière; Côtes françaises; Dinophysis; Seasonal distribution; French coast.
Ano: 1988 URL: https://archimer.ifremer.fr/doc/00189/30067/28555.pdf
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Suivi des facteurs climatiques susceptibles de jouer un rôle dans les apparitions d'eaux colorées, en baie de Vilaine, durant l'année 1985 ArchiMer
Maggi, Pierre; Mastouri, Abderrazak; Lassus, Patrick; Soulard, Louis; Cadiou, Yvon; Le Paul, Christine.
Contrairement à 1983 et 1984, le bloom printanier à diatonées Skeletonema costatum ne s'est pas manifesté en 1985 par une coloration marron des eaux superficielles, certains facteurs ayant été défavorables de la mi-mars à la mi-avril : températures basses, vents modérés et forts abondants, mer agitée à très forte. Le bloom estival à Thalassiosira sp. et Rhizosolenia delicatula apparu fin mai a été favorisé par l'importante pluviosité de la mi-mars à la mi-avril, l'élévation de température de fin mai et début juin, la faible agitation de la mer et la dominance des vents calmes, faibles et modérés en mai et juin. Ce bloom cessera, fin juin, en grande partie sous l'action des vents qui agiteront la mer, cassant ainsi la stratification thermo-haline établie.
Tipo: Text
Ano: 1986 URL: http://archimer.ifremer.fr/doc/00105/21634/19214.pdf
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Tolérance de la faune marine à Bacillus Thuringiensis ArchiMer
Alzieu, Claude; De Barjac, Huguette; Maggi, Pierre.
Le patrimoine forestier est régulièrement menacé par la prolifération de prédateurs qui, par leur voracité, peuvent dévaster de très importantes surfaces boisées. Parmi ces ravageurs, la chenille processionnaire du pin (Thaumetopoea pityocampa SCHIFF) fait l'objet d'une surveillance particulière des services phytosanitaires chargés de la protection des végétaux. Lorsque les populations de chenilles se développent de façon pléthorique des campagnes de lutte sont entreprises soit avec des moyens mécaniques (destruction des branches supportant les nids), soit par traitements aériens à l'aide d'insecticides. Le D.D.T. a d'abord été utilisé pour le traitement de grandes superficies mais en raison d'inconvénients majeurs tels que : apparition de phénomènes de...
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Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-7114.pdf
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Toxicité des hydrocarbures solubles de "GINO" ArchiMer
Lassus, Patrick; Michel, Pierre; Maggi, Pierre.
Le "carbon black oil" transporté par le "Gino" au moment de son naufrage est caractérisé par une densité supérieure à celle de l'eau de mer et une forte viscosité (tableau 1). Il en résulte donc un comportement fort différent de celui des pétroles bruts : écoulement en nappe surle fond, avec une lente évolution sous l'effet des courants, sans mise en émulsion dans l'eau.
Tipo: Text
Ano: 1982 URL: http://archimer.ifremer.fr/doc/00045/15651/13054.pdf
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Toxicite relative de deux insecticides organo-phosphores l'abate et le fenitrothion ArchiMer
Maggi, Pierre.
The effect of the 2 pesticides most frequently used against mosquitoes was tested on a number of marine organisms. Growth inhibition was tested using Phaeodactylum tricornutum and Gyrosigma spencer (algae). To 0.5 ml of culture inoculum containing similar to 100000 cells in exponential growth phase, 9.5 ml of insecticide in varying concentrations were added and the growth was recorded every 48 hour; LG sub(50) was determined. Muscular activity and filtration rate of Crassostrea angulata were tested. The acute toxicity was tested using 4 species of gastropods, 2 lamellibranchs, 5 crustaceans, 1 coelenterate and 3 fishes; the species used were: Gibbula umbilicalis, Purpura lapillus, Littorina littorea, Patella vulgata, Mytilus edulis, Cardium edule, Artemia...
Tipo: Text Palavras-chave: Marine organisms; Toxicity test; Fenitrothion; Abate; Pesticides.
Ano: 1973 URL: http://archimer.ifremer.fr/doc/1973/publication-2229.pdf
Registros recuperados: 49
Primeira ... 123 ... Última
 

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