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Registros recuperados: 56
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Biomasse et production primaire du phytoplancton et du microphytobenthos de deux biotopes sableux (Golfe de Fos, France) ArchiMer
Plante-cuny, Marie-reine; Bodoy, Alain.
The primary production (phytoplankton and microphytobenthos) of a coastaL shallow water ecosystem (0.5 m) was investigated in two sandy areas, differing by their wave exposure. The physical and chemical parameters, the functional chlorophyll and pheopigments as well as the primary production were measured monthly, throughout a two-year study. The bivalve Ruditapes decussatus was the dominant species in the sheltered station (RD), whereas Donax trlmcu/us inhabited the other station (DT) which was exposed to the open-sea waves. Microphytic biomasses were determined after extracting chlorophyll a and pheopigments in 90% acetone. by spectrophotometric measurements before and after acidification. Gross hourly primary production was estimated by measuring the...
Tipo: Text Palavras-chave: Biomasse; Production primaire; Phytoplancton; Microphytobenthos; Mediterranee; Biomass; Primary production; Phytoplancton; Microphytobenthos; Mediterranean.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/1987/publication-2870.pdf
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Report on the ICES Working Group on Marine Shellfish culture (WGMASC), 7-9 April 2009, Bremerhaven, Germany ArchiMer
Kamermans, Pauline; Buck, Bela; Bodoy, Alain; Brenner, Mathias; Cranford, Peter; Fraser, David; Krause, Gesche; Van Nieuwenhove, Kris; Strand, Oivind.
Tipo: Text
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00041/15202/12529.pdf
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Pêche et aquaculture: pour une exploitation durable des ressources vivantes de la mer et du littoral. Compte rendu de colloque (Nantes, 21-23 février 2004) ArchiMer
Biais, Gerard; Bodoy, Alain.
Tipo: Text
Ano: 2005 URL: http://archimer.ifremer.fr/doc/00040/15113/12448.pdf
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Evaluation simultanée des biomasses et productions primaires phytoplanctoniques et microphytobenthiques ArchiMer
Bodoy, Alain; Plante-cuny, Marie-reine.
Tipo: Text
Ano: 1980 URL: http://archimer.ifremer.fr/doc/00036/14763/12072.pdf
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Performances de croissance de l'huître creuse, Crassostrea gigas (Thunberg) dans le bassin d'élevage de Marennes-Oléron entre 1979 & 1982 ArchiMer
Berthome, Jean-paul; Prou, Jean; Bodoy, Alain.
Growth of the japanese oyster, Crassostrea gigas was monitored during 4 years, by following the recruitment of the year 1978, held in rearing conditions. After three and half years, the average length was la cm and the average total weight was 80 g. Clear seasonal changes were observed on the growth in length and weight. An important loss in dry weight occured in July, during the release of gametes. Such losses constituted 29 %, 43 % and 60 % of the dry weight, respectively for individuals which were 2 years, 3 years and 4 years old. The higher instantaneous growth rates (G) were observed during spring and at the beginning of summer. Growth model of Von Bertalanffy, gave the best estimate for the length growth of the species. During the 1979-1982...
Tipo: Text Palavras-chave: Growth parameter; Growth model; Reardd stock; Crassostrea gigas; Oyster; Growth; Descripteurs de croissance; Modèle de croissance; Stock cultivé; Crassostrea gigas; Huître; Croissance.
Ano: 1986 URL: http://archimer.ifremer.fr/doc/1986/publication-2967.pdf
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Etude de la mortalité des moules dans le Pertuis Breton en 1989 ArchiMer
Dardignac, Marie-jose; Bodoy, Alain; Garnier, Jacqueline; Heurtebise, Serge; Legrand, Jacqueline.
Une recherche des causes de la mortalité des moule au printemps dans le Pertuis Breton a été entreprise en 1989. La faible pluviométrie observée cette année là n'a pas entrainé de dessalures importantes et les mortalités constatées ont été si faibles qu'elles n 'ont pas eu de conséquences sur la production de moules. Les essais réalisés en milieu contrôlé ont montré que même pendant la période de reproduction au cours de laquelle les moules sont plus fragiles, il fallait des salinités inférieures à 15 p . mille et se maintenant pendant plusieurs jours avant que des mortalités n 'apparaissent. Il est prévu de remettre le même programme en place au printemps 1990.
Tipo: Text Palavras-chave: Moules; Bouchots; Mortalités; Pollution; Pertuis Breton.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00048/15902/13330.pdf
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Etude de l'influence de la température, liée à la pollution thermique, sur la survie et la biologie de quelques mollusques des substrats meubles ArchiMer
Bodoy, Alain.
Tipo: Text
Ano: 1976 URL: http://archimer.ifremer.fr/doc/00036/14760/12066.pdf
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Aménagement des marais atlantiques : nécessité d'une gestion de l'espace littoral ArchiMer
Bodoy, Alain; Dardignac, Marie-josée; Manaud, Francois; Masson, Daniel; Mauvais, Jean-louis; Thomas, Gerard.
Tipo: Text
Ano: 1989 URL: http://archimer.ifremer.fr/doc/00040/15126/12463.pdf
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Inventaire préliminaire des formations de posidonies dans le golfe d'Aigues-Mortes (Méditerranée nord-occidentale) ArchiMer
Bodoy, Alain; Nicolas, Frédéric; Vaulot, Dominique.
Tipo: Text
Ano: 1982 URL: http://archimer.ifremer.fr/doc/00040/15114/12450.pdf
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Mortalités d'huîtres japonaises sur le Banc de Ronce Les Bains : rapport provisoire au 4/8/88 ArchiMer
Bodoy, Alain; Garnier, Jacqueline; Geairon, Philippe; Chagot, Dominique; Grizel, Henri; Comps, Michel; Razet, Daniel.
Depuis le mois de juin 1988, les ostréiculteurs ont fait part de la présence de mortalités importantes sur le banc de Ronce (bassin de Marennes-Oléron), d'abord auprès de l'Ifremer et des Affaires Maritimes, puis des pouvoirs publics. Ces problèmes ont été évoqués lors d'une réunion en Préfecture de Charente-Maritime, le 4 juillet 1988. Il s'est alors avéré nécessaire de réaliser un constat de la situation notamment sur le banc de Ronce, et de faire le point sur les causes pouvant être à l'origine de la situation sur les mortalités survenues dans cette zone. Cette décision a été confirmée le 12 juillet, lors d'une réunion à la Sous-Préfecture de Rochefort. Le présent rapport présente les résultats scientifiques actuellement disponibles, ainsi que les...
Tipo: Text Palavras-chave: Mortalité; Météorolgie; Paramètres hydrologiques; Physiologie; Croissance; Bivalvia; Crassostrea gigas; Bassin de Marennes Oléron.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/00086/19765/17406.pdf
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Obtention de souches conchylicoles performantes par polyploïdisation (3ème partie) ArchiMer
Gerard, Andre; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Noiret, Christophe; Bodoy, Alain; Heurtebise, Serge; Garnier, Jacqueline.
The third part of the polyploidisation program of the main French species of commercial interest, this report presents the actions and results for the year 1991 which was devoted to:- continuation of the development trials of the triploidy induction technique in Ruditapes decussates (i.e. indigenous clam)- production of diploid and triploid populations of Ostrea edulis (i.e. flat oyster)- control of diploid and triploid population performances in cupped oyster and Pacific clam in their natural habitat- continuation of the development of a ploidy control technique through image analysis- beginning of the development of a new polyploidy induction technique in bivalve molluscs
Tipo: Text Palavras-chave: Ruditapes decussatus; Ostrea edulis; Ruditapes philippinarum; Crassostrea gigas; Imagerie numérique; Cytogénétique; Polyploïdie.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/1992/rapport-3857.PDF
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Rapport sur les causes des mortalités d'huîtres creuses observées en juin 1992 sur le Banc de Ronce Les Bains (Bassin de Marennes-Oléron) ArchiMer
Heral, Maurice; Bacher, Cedric; Razet, Daniel; Prou, Jean; Galgani, Francois; Renault, Tristan; Bodoy, Alain; Garnier, Jacqueline; Geairon, Philippe; Chagot, Dominique; Grizel, Henri; Comps, Michel; Masson, Daniel; Noinin, Michel.
Dès le 4 JUIN 1992, un ostréiculteur digne de confiance avait signalé aux services d'IFREMER, une situation anormale sur le banc de Ronce les Bains. Un premier prélèvement a été effectué le jour même. En effet, ce secteur avait déjà été le lieu de mortalités d'huitres estimées à 7 000 tonnes, au printemps 1988, et s'est révélé par le passé comme étant un endroit sensible. Pour information, figure en annexe le rapport établi en 1988, à destination du Préfet de la Charente Maritime. Ces mortalités ayant rapidement pris de l'ampleur, un dépôt de plainte contre X a été effectué par la Section Régionale de la Conchyliculture. A la suite de quoi, les services d'IFREMER ont été requis par la Gendarmerie Nationale (Brigade de Marennes) le 10 juin 1992, pour...
Tipo: Text Palavras-chave: Ostréiculture; Huîtres creuses; Crassostrea gigas; Mortalité; Banc de Ronce Les Bains; Bassin de Marennes Oléron.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/00048/15899/13327.pdf
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Croissance saisonnière du bivalve Donax trunculus (L.) en Méditerranée nord occidentale (France) ArchiMer
Bodoy, Alain.
Tipo: Text
Ano: 1982 URL: http://archimer.ifremer.fr/doc/00036/14687/11992.pdf
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Guide du télécaptage de larves d'huîtres Crassostrea gigas ArchiMer
Joly, Jean-pierre; Bodoy, Alain; Baud, Jean-pierre.
Ce guide, destiné aux ostréiculteurs désireux de s'initier au télécaptage de larves d'huîtres Crassostrea gigas, est basé sur la traduction d'une publication canadienne enrichie des quelques premières expériences réalisées en FRANCE. La méthode et les diverses manipulations sont expliquées étape par étape et accompagnées par de nombreux conseils.
Tipo: Text Palavras-chave: Télécaptage; Huître creuse; Crassostrea gigas; Méthode.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/00048/15901/13329.pdf
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Bilan azoté des flux tidaux d'un marais salé à végétation halophyte ArchiMer
Silva, Celine; Raillard, Marieke; Bodoy, Alain; Hussenot, Jerome.
In spring 2001, during a complete tidal cycle, nitrogen fluxes between the sea and the salt marsh were calculated. The marsh (1198 m2) covered in 75 % by halophytes, with 46 % by the sea purslane, Halimione portulacoides. The nitrogen balance shows that the salt marsh imports nitrogen micro-particules (2,09 g) by sedimentation, exports dissolved nitrogen (4,13 g), and that the macro-element part (-1,02 g in fauna and vegetable refuse) in the global mass balance (3,06 g) is not unimportant. Nitrogen fluxes are mainly under inorganic form for the incoming flux (mainly NO3), and under organic form for the outgoing flux. The halophyte vegetation of this marsh seems to play thus a dominating role in the tidal nitrogen exchanges, by a mechanical action on the...
Tipo: Text Palavras-chave: Marais salé; Halophytes; Azote; Bilan de masse; Halimione portulacoides; Salicornes; Salt marsh; Halophytes; Nitrogen; Mass balance; Halimione portulacoides; Sea purslane; Sampshire.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/00045/15597/13000.pdf
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Trophic relationships between benthic or planktonic microphytes and infaunal bivalve molluscs ArchiMer
Plantecuny, M; Bodoy, Alain.
In order to estimate energetic relationship, microphytic and benthic bivalve levels of a shallow (1.5 m), sandy ecosystem near Marseille (Gulf of Fos, Southern France) were sampled monthly during 1.5 year, in two sites differing by their wave exposure. In the sheltered area, the bivalve Ruditapes decussatus was the dominant species, while another bivalve, Donax trunculus , was found in the open, wave exposed site. Chlorophyll a and primary production of the phytoplankton and the microphytobenthos, as well as population dynamic, growth and biochemical composition of bivalves (lipids, proteins and carbohydrates) were monitored.
Tipo: Text Palavras-chave: Ruditapes decussatus; Bivalvia; Periphyton; Phytoplankton; Biochemical composition; Growth; Marine molluscs; Hydrodynamics; Seasonal variations; Primary production; Trophic relationships.
Ano: 1984 URL: http://archimer.ifremer.fr/doc/1984/acte-1528.pdf
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Oyster adenytate energy charge: response to levels of food ArchiMer
Moal, Jeanne; Le Coz, Jean-rene; Samain, Jean-francois; Daniel, Jean-yves; Bodoy, Alain.
Adenylatc Encrgy Charge (AEC) values of Crassostrea gigas (9 and 18 months old) cultured in ponds in Marennes-Oléron Bay (Atlantic coast, France) are reported. Two ponds were loaded with two different initial oyster biomasses in order to obtain different food conditions. The growth of oysters was different in the two ponds which corroborated the effectivences of attaining different food conditions. AEC level was different depending on the pond and was therefore related to food availability per unit oyster biomass. Well-fed oysters exhibited greater AEC values than poorly-fed oysters, throughout thc study. Information on nutritional situations for wild or cultured populations can therefore be obtained by AEC. In cach pond, the seasonal AEC variations were...
Tipo: Text Palavras-chave: Charge énergétique adénylique; Crassostrea gigas; Nutrition; Nucléotides; Adenylate energy charge; Crassostrea gigas; Food; Nucleotides.
Ano: 1991 URL: http://archimer.ifremer.fr/doc/00038/14882/12202.pdf
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Comparison of events in the seasonal cycle for Donax vittatus and D. trunculus in european waters ArchiMer
Ansell, A. D.; Bodoy, Alain.
Tipo: Text
Ano: 1979 URL: http://archimer.ifremer.fr/doc/00036/14765/12074.pdf
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L'élevage de l'huître creuse à Marennes-Oléron en 1987 : Estimation des stocks cultivés ArchiMer
Bodoy, Alain; Geairon, Philippe.
Le bassin de Marennes-Oléron est le premier centre ostréicole de France, avec un stock de 93 700 tonnes en août 1987. L'opération d'échantillonnage a montré que ce chiffre comprenait 36 500 tonnes pour l'élevage à plat, 33 000 tonnes pour la première phase d'élevage sur tables, qui concerne l'élevage sur collecteurs de captage et 24 200 tonnes pour la phase finale représentée par l'élevage en poche. Le niveau du stock est en augmentation constante depuis 1984. L'importance pondérale de chaque classe d'âge est susceptible de fluctuer très largement puisque des huîtres âgées de 1 an représentaient 4 400 tonnes en 1987, alors que la classe d'âge correspondante représentait 17 000 tonnes en 1986. Ceci est dû aux variations annuelles du captage. Une méthode...
Tipo: Text Palavras-chave: Ostréiculture; Stocks; Captage; Croissance; Production; Huîtres creuses; Crassostrea gigas; Marennes Oléron; Charente Maritime.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/00014/12480/9326.pdf
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Comparaison de la respiration chez Ruditapes decussatus (L.) et R. philippinarum (Adams & Reeve) en fonction de la température ArchiMer
Bodoy, Alain; Riva, Alain; Maitre-allain, Thierry.
Measurements of oxygen consumption in the two species Ruditapes decussatus and Ruditapes phi/ippinarum were perfonned using hatchery-reared juveniles, grown under controlled conditions. The temperature range varied from 10 to 30°C. The linear relations between the logarithms of the dry weight and of the oxygen consumption were calculated for each species. Rates were compared in terms of standardized clam tissue weight calculated from the regression of respiration on tissue weight. Such a technique allows to make comparisons between the species by avoiding any interference from the variations in individual weight. Within this range of temperature, oxygen consumption of R. philippinarum and of R. decussatus exhibit the same variations, with a maximum at...
Tipo: Text Palavras-chave: Temperature; Oxygen consumption; Ruditapes philippinarum; Ruditapes decussatus; Température; Consommation oxygène; Ruditapes philippinarum; Ruditapes decussatus.
Ano: 1986 URL: http://archimer.ifremer.fr/doc/1986/publication-2963.pdf
Registros recuperados: 56
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