Consulta: creatorFacets:"Bodoy, Alain"
Registros recuperados: 56
Data/hora: 06/06/2024 07:58:40

Biomasse et production primaire du phytoplancton et du microphytobenthos de deux biotopes sableux (Golfe de Fos, France)
Provedor de dados: 5
Autores: 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

Report on the ICES Working Group on Marine Shellfish culture (WGMASC), 7-9 April 2009, Bremerhaven, Germany
Provedor de dados: 5
Autores: 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

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)
Provedor de dados: 5
Autores: Biais, Gerard; Bodoy, Alain.
Tipo: Text
Ano: 2005
URL: http://archimer.ifremer.fr/doc/00040/15113/12448.pdf

Evaluation simultanée des biomasses et productions primaires phytoplanctoniques et microphytobenthiques
Provedor de dados: 5
Autores: Bodoy, Alain; Plante-cuny, Marie-reine.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00036/14763/12072.pdf

Performances de croissance de l'huître creuse, Crassostrea gigas (Thunberg) dans le bassin d'élevage de Marennes-Oléron entre 1979 &amp; 1982
Provedor de dados: 5
Autores: 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

Etude de la mortalité des moules dans le Pertuis Breton en 1989
Provedor de dados: 5
Autores: 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

Etude de l'influence de la température, liée à la pollution thermique, sur la survie et la biologie de quelques mollusques des substrats meubles
Provedor de dados: 5
Autores: Bodoy, Alain.
Tipo: Text
Ano: 1976
URL: http://archimer.ifremer.fr/doc/00036/14760/12066.pdf

Aménagement des marais atlantiques : nécessité d'une gestion de l'espace littoral
Provedor de dados: 5
Autores: 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

Inventaire préliminaire des formations de posidonies dans le golfe d'Aigues-Mortes (Méditerranée nord-occidentale)
Provedor de dados: 5
Autores: Bodoy, Alain; Nicolas, Frédéric; Vaulot, Dominique.
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00040/15114/12450.pdf

Mortalités d'huîtres japonaises sur le Banc de Ronce Les Bains : rapport provisoire au 4/8/88
Provedor de dados: 5
Autores: 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

Obtention de souches conchylicoles performantes par polyploïdisation (3ème partie)
Provedor de dados: 5
Autores: 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

Rapport sur les causes des mortalités d'huîtres creuses observées en juin 1992 sur le Banc de Ronce Les Bains (Bassin de Marennes-Oléron)
Provedor de dados: 5
Autores: 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

Croissance saisonnière du bivalve Donax trunculus (L.) en Méditerranée nord occidentale (France)
Provedor de dados: 5
Autores: Bodoy, Alain.
Tipo: Text
Ano: 1982
URL: http://archimer.ifremer.fr/doc/00036/14687/11992.pdf

Guide du télécaptage de larves d'huîtres Crassostrea gigas
Provedor de dados: 5
Autores: 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

Bilan azoté des flux tidaux d'un marais salé à végétation halophyte
Provedor de dados: 5
Autores: 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

Trophic relationships between benthic or planktonic microphytes and infaunal bivalve molluscs
Provedor de dados: 5
Autores: 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

Oyster adenytate energy charge: response to levels of food
Provedor de dados: 5
Autores: 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

Comparison of events in the seasonal cycle for Donax vittatus and D. trunculus in european waters
Provedor de dados: 5
Autores: Ansell, A. D.; Bodoy, Alain.
Tipo: Text
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00036/14765/12074.pdf

L'élevage de l'huître creuse à Marennes-Oléron en 1987 : Estimation des stocks cultivés
Provedor de dados: 5
Autores: 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

Comparaison de la respiration chez Ruditapes decussatus (L.) et R. philippinarum (Adams &amp; Reeve) en fonction de la température
Provedor de dados: 5
Autores: 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

Comment poussent les nacres dans les lagons?
Provedor de dados: 5
Autores: Bodoy, Alain.
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00041/15203/12530.pdf

A methology for the stocks assessments of cultivated oysters among along the French Atlantic coasts
Provedor de dados: 5
Autores: Bacher, Cedric; Baud, Jean-pierre; Bodoy, Alain; Deslous-paoli, Jean-marc; Dreno, Jean-paul; Heral, Maurice; Maurer, Daniele; Prou, Jean.
An assessment of the reared stocks of the Pacific oyster (Crassostrea gigas ) has been recently conducted on the major French areas of molluscs culture. The methodology proposed included both estimates of densities obtained by subsampling in the field, and aerial photographs which covered the cultivated, intertidal area. The size and the number of samples were designed to reach a precision of 10% on the final assessment in each area. The field work consisted in weighing and counting the oyster in unit areas of 0.5 m2 for the bottom culture or in trays or bags, for the off bottom technique. These results give a better knowledge of the technique evolution and of the general structures in the cultivated areas.
Tipo: Text
Palavras-chave: Modeling; Estimation; Stocks; Crassostrea gigas; Oysters.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/acte-2864.pdf

Rapport d'activité 1989 du Laboratoire Régional de Conchyliculture Loire-Gironde - La Tremblade
Provedor de dados: 5
Autores: Bodoy, Alain.
Tipo: Text
Palavras-chave: Rapport activité; Conchyliculture; Pays de Loire; Gironde.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00077/18837/16412.pdf

Site n°5. The Pertuis Breton (Bay of Biscay) France
Provedor de dados: 5
Autores: Bodoy, Alain; Martin, Jean-louis; Bacher, Cedric; Haubois, Anne-gaelle; Sauriau, Pierre-guy.
1.This report presents the results of a field study conducted in the ECASA test site nOS in the Pertuis Breton, France. The site is located on the Atlantic West coasts. It is open to the bay of Biscay, but is slightly protected against westerly winds. The bay has been exploited by intertidal mussels culture for centuries. 2. Within the bay, mussels (Mytilus edulis) are cultivated either by the traditional pole technique, around the bay or on longlines in the centre of the bay. The area occupied by these longline s represents 250 ha, and the resulting annual production is 1 000 tonnes of mussels. The average depth at mid tide is of 13.8 m. The sediment is sandy, with a small fraction of mud. 3. The site is subject to several regular monitoring through the...
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00304/41516/40724.pdf

Croissance comparée de la palourde européenne (Ruditapes decussatus) et de la palourde japonaise (Ruditapes philippinarum) dans un écosystème artificiel méditerranéen
Provedor de dados: 5
Autores: Bodoy, Alain; Maitre-allain, Thierry; Riva, Alain.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00040/15127/12464.pdf

Intensive culture of the Manila clam (Ruditapes philippinarum) in marine ponds. The impact of rearing densities and feeding levels on growth rates and yields
Provedor de dados: 5
Autores: Baud, Jean-pierre; Haure, Joel; Bodoy, Alain.
Intensive ongrowing (from 28 mm to the commercial size, 35 mm) of the Manila clam Ruditapes philippinarum was studied in experimental raceways with a natural bottom of clay. The factors controlled were rearing density (100, 200, and 300 individuals/m2) and food concentration (34.0 and 68.1 µg.1-1 chlorophyll a). Food was produced from a batch culture of Skeletonema costatum in a large volume (50 m3), thanks to the fertile ground and saline water. Best results regarding final size were obtained in the vicinity of the inflow with a densilY of 100 individuals/m2. However it was a density of 300 individuals/m2 which appeared from the following results to be the optimal choice for intensive rearing: the survival rate was 84 %, the final biomass was 4 kg/m2 and...
Tipo: Text
Palavras-chave: Ruditapes philippinarum; Skeletonema costatum; Elevage intensif; Marais maritime; Croissance; Rendement; Ruditapes philippinarum; Skeletonema costatum; Intensive rearing; Marine pond; Growth rate; Yield.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/00038/14950/12276.pdf

Assessment of human impact on giant clams, Tridacna maxima, near Jeddah, Saudi Arabia
Provedor de dados: 5
Autores: Bodoy, Alain.
Tipo: Text
Ano: 1984
URL: http://archimer.ifremer.fr/doc/00036/14766/12075.pdf

Environmental status of the european seas
Provedor de dados: 5
Autores: Frid, Chris; Hammer, Cornelius; Law, Robin; Loeng, Harald; Pawlak, Janet F.; Reid, Philip C.; Tasker, Mark; Carlberg, Stig; Jakobsen, Tore Jakobsen; Rice, Jake Rice; Skjoldal, Hein Rune; Andrulewicz, Eugene; Bodoy, Alain; Calabrese, Anthony; Carlberg, Stig; Caspersen, Ove; Daan, Niels; Dahlin, Hans; Ehrich, Siegfried; Gentien, Patrick; Keizer, Paul; Leppänen, Juha-markku; Lima, Carmen; Margonski, Piotr; Noji, Tom; Nunes, Teresa; Rugg, Dornford; Sköld, Mattias.
Tipo: Text
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00040/15135/12473.pdf

Mass mortalities of oysters (Crassostrea gigas) during spring 1988 in the Bay of Marennes-Oleron, related to environmental conditions
Provedor de dados: 5
Autores: Bodoy, Alain; Garnier, Jacqueline; Razet, Daniel; Geairon, Philippe.
Mass mortalities of oysters were recorded in the South of the Bay of Marennes-Oleron, during spring 1988. The percentages of mortality averaged 50 % and reached up to 90 % in some areas of bottom culture. The losses were estimated to 7 800 tonnes. This paper present the results of the investigations carried out in several fields. Among them, pathological examination revealed that no pathogenic agent or parasitic infestation could be evoked to explain these mortalities. Analyses of pollutants were either negatives, or the concentrations were far below the toxicity levels. Climatological and hydrological observations showed that rainfalls were twice more abundant then the average, for a period of 6 months preceding the mortalities. The salinity was low and...
Tipo: Text
Palavras-chave: Bay of Marennes Oleron; Crassostrea gigas; Oysters; Mortalities.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/acte-3030.pdf

Estimation des stocks d'huîtres cultivées dans le bassin de Marennes-Oléron en 1986
Provedor de dados: 5
Autores: Bodoy, Alain; Bacher, Cedric; Geairon, Philippe.
Une estimation du stock d' huîtres creuses en élevage dans le bassin de Marennes-Oléron a été effectuée en août 1986 . Le stock s'élevait alors à 90 000 tonnes, avec une précision de 8,4 %. Ce stock se répartit en 30 300 tonnes pour l'élevage à plat et 59 700 tonnes pour l'élevage en surélevé. Il s'est donc produit une augmentation des tonnages en élevage qui est de 9,4 % entre 1985 et 1986. L'augmentation de tonnage concerne surtout l 'élevage en surélevé, et plus particulièrement les huîtres fixées sur collecteurs. La séparation des classes d'âge au niveau des collecteurs a permis d'améliorer la précision des estimations. Elle a également permis de montrer l'importance de la classe d'âge de 1 an (16 900 tonnes), qui correspond au captage particulièrement...
Tipo: Text
Palavras-chave: Ostréiculture; Stocks; Croissance; Production; Huîtres creuses.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00048/15903/13331.pdf

Assessments of natural mortality of cultivated oysters (Crassostrea gigas) in the bay of Marennes-Oleron (France)
Provedor de dados: 5
Autores: Bodoy, Alain.
The natural mortality of oysters could by considered, in a man controlled ecosystem, as the result of the action of biological factors, and human factors other then the harvest of the population. Such mortalities need to be estimated in order to be used in population dynamics, as a tool for management purposes. ln Marennes-Oleron bay, different ways of estimating the natural mortality are available. Several oyster farms were monitored for assessing growth, mortality and production in rearing conditions. Furthermore, an experimental framework which includes 15 stations gave an appraisal of the same factors under controlled conditions. Finally, another estimate will be soon available by comparin9 the number of recruited oysters, and the number of oyster...
Tipo: Text
Palavras-chave: Marennes Oleron; Mortality; Crassostrea gigas; Oysters.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/acte-2962.pdf

Evaluation simultanée des biomasses et des productions primaires phytoplanctonique et microphytobenthique en milieu côtier
Provedor de dados: 5
Autores: Bodoy, Alain; Plante-cuny, Marie-reine.
On étudie un fond sablo-vaseux de mode calme à Ruditapes decussatus et un fond sableux de mode battu à Donax trunculus. Dans le premier cas, la biomasse chlorophyllienne totale est 10 fois plus élevée que dans le second, et la production primaire double; le rôle du microphytobenthos y est prépondérant (en biomasse, 97%; en production primaire 50%); en mode battu, le phytoplancton représente la quasi-totalité de l'échelon primaire.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00036/14715/12021.pdf

Modeling the impact of oyster culture on a mudflat food web in Marennes-Oleron Bay (France)
Provedor de dados: 5
Autores: Leguerrier, D; Niquil, Nathalie; Petiau, A; Bodoy, Alain.
We used a carbon-based food web model to investigate the effects of oyster cultivation on the ecosystem of an intertidal mudflat. A previously published food web model of a mudflat in Marennes-Oleron Bay, France, was updated with revised parameters, and a realistic surface area and density of existing oyster cultures on the mudflat. We developed 2 hypothetical scenarios to estimate the impact of oyster cultivation on the food web structure of the ecosystem: one with no oysters, the other with a doubled area devoted to cultivated oysters in the bay. Oysters are direct trophic competitors of other filter feeders, and their presence modifies benthic-pelagic coupling by forcing a shift from pelagic consumers to benthic consumers. Increasing the surface area of...
Tipo: Text
Palavras-chave: Carbon flux; Inverse analysis; Food web; Network analysis; Bivalve culture.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00000/10816/7583.pdf

Quelques paramètres permettant de suivre la production organique d'un mollusque bivalve au cours d'un cycle saisonnier
Provedor de dados: 5
Autores: Bodoy, Alain; Masse, H.
Some parameters measuring the production of organic matter, in field conditions, by a population of the bivalve mollusc Donax trunculus have been stu­died. Those studies which are easily done when the population is composed of long lived species become difficult in Mediterranean Sea where the populations are instable and composed of short-lived species. A large qualitative sample has been made every month on which the inter­pretation of cohort succession has been done using the graphical method of CASSIE (1954) which is an useful mean to determine the modal class-size. The monthly values of the weight/size relationship, during a year, show important fluctuations indicating that size increment, tissue weight increment, gamet production and release are often...
Tipo: Text
Palavras-chave: Production; Mollusques bivalves; Production; Molluscs bivalve.
Ano: 1979
URL: http://archimer.ifremer.fr/doc/00306/41696/40907.pdf

World Aquaculture 1993 : 24ème congrès de la World Aquaculture Society - 17ème congrès de l'European Aquaculture Society - 2ème congrès mixte WAS-EAS, Torremolinos, Espagne, 24- 28 mai 1993
Provedor de dados: 5
Autores: Bodoy, Alain; Calvas, Jacques; Fuchs, Jacques; Lacroix, Denis; Mazurie, Joseph; Paquotte, Philippe; Rene, Francois.
Ce document est un rapport de mission commun des 44 chercheurs du groupe IFREMER ayant participé au 2ème congrès mixte de la World Aquaculture Society et de l'European Aquaculture Society qui s'est tenu à Torremolinos, en Espagne, du 24 au 28 mai 1993.
Tipo: Text
Ano: 1993
URL: https://archimer.ifremer.fr/doc/00021/13207/10259.pdf

Inventaire des restructurations des rivages et de leur impact sur la vie sous-marine du département des Bouches-du-Rhône
Provedor de dados: 5
Autores: Meinesz, Alexandre; Astier, Jean-marie; Bodoy, Alain; Lefèvre, Jean-robert.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00036/14717/12023.pdf

Gametogenic cycle and reproductive effort of the tropical blacklip pearl oyster, Pinctada margaritifera (Bivalvia : Pteriidae), cultivated in Takapoto atoll (French Polynesia)
Provedor de dados: 5
Autores: Pouvreau, Stephane; Gangnery, Aline; Tiapari, Jerome; Lagarde, Franck; Garnier, Matthieu; Bodoy, Alain.
The gametogenic cycle and the reproductive effort of the blacklip pearl oyster, Pinctada margaritifera, cultivated in Takapoto lagoon were studied for a 1-year period (March 1997-April 1998) by bimonthly observations of gonadal sections, dry tissue weights and gonadal index in a population of pearl oyster composed of three age-groups. pearl oysters attained sexual maturity in the end of their first year (height approximate to 40 mm), implying that P. margaritifera is a late-maturing species in comparison with other Pteriidae. This species was also confirmed to be a marked protandrous successive hermaphrodite in culture, with 100 % of males at first maturity and 75 % in older pearl oyster (height &gt; 120 mm). The general pattern of gametogenic activity,...
Tipo: Text
Palavras-chave: French Polynesia; Reproductive effort; Reproductive cycle; Tropical aquaculture; Gametogenesis; Blacklip pearl oyster; Polynésie française; Effort de reproduction; Cycle de reproduction; Aquaculture tropicale; Gamétogenèse; Huître perlière.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-1391.pdf

Incidence de la répartition géographique, à l'échelle européenne, sur la tolérance thermique de mollusques marins
Provedor de dados: 5
Autores: Ansell, A. D.; Bodoy, Alain; Masse, Henri.
Tipo: Text
Ano: 1980
URL: http://archimer.ifremer.fr/doc/00036/14764/12073.pdf

Diversification des productions conchylicoles en Poitou-Charentes. L'élevage du pétoncle noir Chramys Varias
Provedor de dados: 5
Autores: Bodoy, Alain; Garnier, Jacqueline; Heurtebise, Serge; Nollet, V.; Chagot, Dominique.
La croissance et la reproduction du pétoncle noir, Chlamys varia, ont été suivies sur un cycle biologique complet, dans un marais maritime. Cette croissance s'est avérée être nettement, plus rapide qu'en rade de Brest, puisque la taille commerciale de 35 mm a été atteinte en un an. Les individus se sont reproduits au bout de la même période. Ceci montre qu'il est possible d'obtenir un cycle biologique très rapide. Lors du cycle de production, des mortalités importantes ont été constatées entre le prégrossissement en nurserie et la mise en élevage. Ces mortalités ne se sont pas renouvelées sur le cycle en cours d'étude. Un agent parasite nouveau a été décrit sur cette espèce, sans que les certitudes puissent être établies quant à son rôle pathogène....
Tipo: Text
Palavras-chave: Croissance; Composition biochimique; Elevage; Pétoncle; Marais maritime; Charente-Maritime.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00048/15905/13333.pdf

Etude comparative de différents indices de condition chez l'huître creuse (Crassostrea gigas)
Provedor de dados: 5
Autores: Bodoy, Alain; Prou, Jean; Berthome, Jean-paul.
Among the different condition indices, some of them were compared on a population of the japanese oyster, Crassostrea gigas. The follow-up of experimental racks was performed monthly during four years. The use of dry weight in condition indices gave a more precise and more reliable representation for the condition of the oysters than the fresh weight. The sensitivity of these indices, which corresponds to their ability in revealing small changes in the physiological condition, was calculated for each indice. Those exhibiting the best sensitivity were ranked as follow: dry weight on the difference between total weight and shell weight, dry weight on intervalve volume. Other indices including the ratio between dry weight and various assessments of the volume...
Tipo: Text
Palavras-chave: Bivalve; Crassostrea gigas; Indice de qualité; Indice de condition; Crassostrea gigas; Bivalve; Condition factor; Condition index.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00000/2961/9155.pdf

Compte-rendu d'activité 1990 de l'Unité de Recherche Régionale Aquacole (URRA) La Tremblade
Provedor de dados: 5
Autores: Bodoy, Alain.
Rapport d'activité 1990 de l'Unité de Recherche Régionale Aquacole (URRA) La Tremblade
Tipo: Text
Palavras-chave: Conchyliculture; Télécaptage; Gestion élevage; Biologie; Physiologie; Bivalves; Rapport activité.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00072/18284/15854.pdf

Budget énergétique de l'huître perlière, Pinctada margaritifera, dans le lagon de Takapoto
Provedor de dados: 5
Autores: Pouvreau, Stéphane; Tiapari, Jérôme; Gangnery, Aline; Garnier, M.; Lagarde, Franck; Robert, Stéphane; Jonquieres, Gerard; Teissier, Hinano; Prou, Jean; Bennett, Auguste; Caisey, Xavier; Haumani, Gaby; Buestel, Dominique; Bodoy, Alain.
Tipo: Text
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00041/15176/12513.pdf

Report of the ICES working group on environmental interactions of mariculture (WGEIM) - 2002
Provedor de dados: 5
Autores: Black, E.; Bodoy, Alain; Davies, Ian; Dosdat, Antoine; Ervik, Arne; Haya, Kats; Mckindsey, Chris; Mcmahon, Terry; O'Beirn, Francis; Rosenthal, Harald; Silvert, Bill; Waller, Uwe.
Tipo: Text
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00041/15177/12514.pdf

Obtention de souches conchylicoles performantes par polyploïdisation (4ème partie)
Provedor de dados: 5
Autores: Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Bodoy, Alain; Heurtebise, Serge; Garnier, Jacqueline; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Martin, Anne-genevieve; Claude, Serge; Barret, Jean; Devauchelle, Nicole; Joly, Jean-pierre; Goulletquer, Philippe; Coatanea, Denis; Oheix, Jocelyne; Zanette, Yvan; Blachier, Philippe.
This fourth part of the polyploidisation program reports the experiments that were conducted in 1992 and that were devoted to : - the acquiring of a new method using an epifluroescent microscope - the development o a new technique for inducing polyploidy - the triploidy induction for the Europena clam Ruditapes decussatus - the settlement of performance controls conducted on diploid and triploid populations of Ostrea edulis - results of performance controls conducted on diploid and triploid populations of Crassostrea gigas and Ruditapes philippinarum
Tipo: Text
Palavras-chave: Ruditapes decussatus; Ruditapes philippinarum; Ostrea edulis; Crassostra gigas; Cytongenetics; Polyploidy; Ruditapes decussatus; Ruditapes philippinarum; Ostrea edulis; Crassostrea gigas; Cytogénétique; Polyploïdie.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/1993/rapport-3859.PDF

Development of culture techniques for new bivalve species
Provedor de dados: 5
Autores: Bodoy, Alain; Mercer, J. P.
Were are two main reasons for the development of cultivation techniques of new  bivalve species. First, the risk exists that traditionally reared species may be ereadicated or severely depleted by pathogenic agents. For example the Portuguese 0yster  Crassostrea angulata. disapeared from the French coasts in the early 1970's and worldwide production of the flat oyster, Oslrea edulis has been dramatically reduced by the effects of Bonamia.  Secondly, in some countries production may he self-Iimiting by the size and availabilily of national and international markets and a wider species range could offer some promising new economic opportunities for aquaculturists. In particular this applies to species where there are identifiable market shortfalls.
Tipo: Text
Palavras-chave: Haliotis tuberculata; Ostrea edulis; Placopecten magellanicus; Scallops; Ruditapes philippinarum; Manila clam; Molluscs; Cultivation techniques.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/publication-3033.pdf

L'élevage hivernal du pétoncle noir Chlamys varia sur les côtes de Charente-Maritime. Résultats préliminaires en claire et en mer ouverte
Provedor de dados: 5
Autores: Bodoy, Alain; Garnier, Jacqueline; Heurtebise, Serge.
Dans le cadre d'un programme de recherche financé partiellement par la région Poitou-Charentes, un élevage expérimental du pétoncle noir, Chlamys varia, a été réalisés dans deux sites aquacoles. L'un concerne la mer ouverte, au moyen de filière d'élevage de type subflottant, l'autre les bassins en terre du marais maritime (claire). Une production en écloserie et un prégrossissement intensif ayant été réalisé, le naissain d'une taille d'environ 18 mm a fait l'objet d'un élevage hivernal, selon un plan expérimental qui comprenait un facteur relatif au milieu d'élevage et un facteur relatif à la densité. D'importantes mortalités ont été constatées juste après la mise en élevage. Elles semblent être en relation avec le transfert des individus entre le site de...
Tipo: Text
Palavras-chave: Aquaculture; Pectinidés; Pétoncle; Filière d'élevage; Marais maritime.
Ano: 1990
URL: http://archimer.ifremer.fr/doc/00031/14205/11474.pdf

Diversification des productions conchylicoles en Poitou-Charentes. L'élevage du pétoncle noir Chlamys Varia
Provedor de dados: 5
Autores: Bodoy, Alain; Garnier, Julien; Heurtebise, Serge; Nollet, V.; Chagot, D.
La croissance et la reproduction du pétoncle noir, Chlamys varia, ont été suivies sur un cycle biologique complet, dans un marais maritime. Cette croissance s'est avérée être nettement plus rapide qu'en rade de Brest, puisque la taille commerciale de 35 mm a été atteinte en un an. Les individus se sont reproduits au bout de la même période. Ceci montre qu'il est possible d'obtenir un cycle biologique très rapide.
Tipo: Text
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00080/19152/16747.pdf

Improvement of remote setting of the Pacific oyster (Crassostrea gigas) on French platic pipes
Provedor de dados: 5
Autores: Baud, Jean-pierre; Jolly, C.; Bodoy, Alain.
The oysters culture in France is based on a natural spatfall, collected on cultches in setting areas. The collectors are then transfered on intertidal parcs for development during 1.5 to 3 years. The subsequent ongrowing stage is performed after separating the oysters and putting them in bags or by off-bottom cultivation. In order to improve the stock turnover and to improve the rearing conditions for the juveniles, experiments were performed to define optimal conditions for remote setting. After considering the previous studies a standard density of 2 000 larvae per cultch (plastic pipe) was selected. This corresponded to an average, theoretical density of 2.3 larvae.cm-2. The resulting density, at the end of the growing stage should average 25 kg of...
Tipo: Text
Palavras-chave: Plastic pipes; Crassostrea gigas; Oysters; Natural spatfall; Oysters culture; Collecteur; Crassostrea gigas; Huîtres; Captage naissain; Ostréiculture.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3044.pdf

Exploitation des huîtres en Nouvelle Calédonie échantillonnage des stocks naturels d'huîtres de paletuviers (Saccostrea cucullata) et aménagement des pêches
Provedor de dados: 5
Autores: Bodoy, Alain; Morin, Jocelyne.
We analysed a few aspects of oyster culture in New Caledonia. Oyster culture there is not very important, one farm producing 30 tonnes of Japanese oysters per year and the other one, 3 tonnes of rock oysters. Mangrove oyster deposits are traditionally exploited, and this exploitation lead to a decrease of the densities and biomasses observed in the most exploited estuaries. On the four monitored sites, the maximum size observed is comprised between 7.2 to 10 cm, for a mode comprised between 3.6 and 4.8 cm. Densities go from 31 to 251 oysters and biomasses, from 0.751 to 2.553 kg/m2. Regulations focus on the minimum collection size (6 cm) and a fishing prohibition period of 8 months. Based on our observations, we suggest that these dispositions be...
Tipo: Text
Palavras-chave: Aménagement des Pêches; Stocks; Echantillonnage; Huître; Mangrove.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/acte-6527.pdf

Does the prevalence of Bonamia  and Marteilia diseases be reduced on flat oysters (Ostrea edulis) of Atlantic and Mediterranean origin, when they are reared together with the Japanese oyster (Crassostrea gigas) in tidal ponds?
Provedor de dados: 5
Autores: Bodoy, Alain; Bougrier, Serge; Geairon, Philippe; Garnier, Jacqueline; Boulo, Viviane; Heurtebise, Serge.
The flat oyster Ostrea edulis was originally reared in several regions of the European waters. The tidal saline ponds on the Atlantic coasts of France were highly productive before being hit by two consecutive epizooties. Parasitic diseases were described on this species, both of them leading 10 economic losses, as heavy mortalities have usually been recorded before the oysters reach the commercial size. Repeated experiments showed that the two diseases, Marteilia refringens and Bonamia ostreae are still active in this environment. Recently, some evidences were given that haemocytoblasts of Crassostrea gigas had the ability to lyze the Bonamia cells. Therefore, in an experiment of contiguous culture of the two species of oysters, the growth, mortality and...
Tipo: Text
Palavras-chave: Molluscs; Mortalities; Growth; Pathology; Crassostra gigas; Ostrea edulis; Marteilia refringens; Bonamia ostreae.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3049.pdf

Soft Bottom Macrofauna
Provedor de dados: 5
Autores: Beltagy, Samir; Bodoy, Alain.
Tipo: Text
Ano: 1983
URL: http://archimer.ifremer.fr/doc/00040/15123/12459.pdf

Growth of the black-lip pearl oyster, Pinctada margaritifera, in suspended culture under hydrobiological conditions of Takapoto lagoon (French Polynesia)
Provedor de dados: 5
Autores: Pouvreau, Stephane; Tiapari, Jerome; Gangnery, Aline; Lagarde, Franck; Garnier, Matthieu; Teissier, Hinano; Haumani, G; Buestel, Dominique; Bodoy, Alain.
Growth of the black-lip pearl oyster, Pinctada margaritifera var. cumingi, was studied for an annual cycle, from March 1997 to April 1998, in the lagoon of Takapoto atoll (Tuamotu archipelago, French Polynesia). Growth in shell and in tissue were measured every 15 days on three successive age groups of cultivated pearl oysters. At the same time, hydrobiological parameters (temperature, salinity, oxygen concentration, suspended particulate matter), known to have influence on bivalve growth, were followed each week during culture. No seasonal trend was observed in hydrobiological parameters, except for temperature which varied between 26 degrees C and 31 degrees C. The potential food for pearl oysters (particulate organic matter, POM, mg l(-1)) was slightly...
Tipo: Text
Palavras-chave: Pearl culture; Matter in suspension; Biochemical composition; Length weight relations ship; Tropical lagoon; Growth; Pinctada margaritifera.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-381.pdf

Approche de l'état physiologique de l'huître creuse Crassostrea gigas au cours d'un cycle saisonnier à Marennes-Oléron
Provedor de dados: 5
Autores: Moal, Jeanne; Samain, Jean-francois; Bodoy, Alain; Le Coz, Jean-rene.
The energy charge was measured for two Crassostrea gigas populations, during an annual survey at Marennes Oleron, to appreciate the condition of health of these oysters. It is assumed that the actual decrease in production of this area is related to a biomass overload which affects the oysters by lowering their scope for growth. Energy charge, an index developped by ATKINSON (1968), defines the energy equilibrium of organisms. It is the adenylic nucleotide ratio: E.C = (ATP + 1/2ADP)/ATP + ADP + AMP). We have measured this parameter to determine the state of health of these oysters. A methodological study has been conducted previously to define the conditions of sampling, conservation and extraction for a HPLC assay. The HPLC method (high performance...
Tipo: Text
Palavras-chave: Marennes Oleron; Seasonal variations; Crassostrea gigas; Physiological indice; Nucleotides; Energy charge; Marennes Oléron; Cycle saisonnier; Crassostrea gigas; Indiced physiologique; Nucléotides; Charge énergétique.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/publication-2869.pdf

In situ suspension feeding behaviour of the pearl oyster, Pinctada margaritifera: combined effects of body size and weather-related seston composition
Provedor de dados: 5
Autores: Pouvreau, Stephane; Bodoy, Alain; Buestel, Dominique.
In situ clearance rate (CR) and biodeposition of the black pearl oyster, Pinctada margaritifera, were followed during several field experiments from 1996 to 1998 in the lagoon of Takapoto. Serial measurements of total particulate matter (TPM, mg l(-1)), particulate inorganic matter (PLM, mg l(-1)), and particulate organic matter (POM, mg l(-1)) were related to meteorological conditions, especially wind speed. As a general case, POM and PLM increased with wind speed. Nevertheless, PLM increased faster than POM so that the organic content (OC, %) of the TPM decreased progressively when wind speed increased. These TPM variations induced direct changes in feeding processes of P. margaritifera. CR (l h(-1)) averaged 22 l h(-1) for a pearl oyster of 1 g dry...
Tipo: Text
Palavras-chave: Biodeposition; Clearance rate; Seston; Filter feedings behaviour; Tropical lagoon; Tropical bivalve.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-382.pdf

World aquaculture 1993, Torremolinos, Espagne, 24-28 mai 1993. Rapport de mission de l'IFREMER
Provedor de dados: 5
Autores: Bodoy, Alain; Calvas, Jacques; Fuchs, Jacques; Lacroix, Denis; Mazurie, Joseph; Paquotte, Philippe; Rene, Francois.
Tipo: Text
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00040/15136/12475.pdf

Etude sur la résistance à la température de quelques mollusques marins des côtes de provence
Provedor de dados: 5
Autores: Bodoy, Alain; Massé, Henri.
Tipo: Text
Ano: 1977
URL: http://archimer.ifremer.fr/doc/00040/15125/12462.pdf