Consulta: creatorFacets:"Goulletquer, Philippe"
Registros recuperados: 181
Data/hora: 10/06/2024 18:07:15

Modelling Crassostrea gigas growth and reproduction in different contrasted ecosystems by using dynamic energy budgets : generic validation of the oyster-DEB model
Provedor de dados: 5
Autores: Bourles, Yves; Maurer, Daniele; Le Moine, Olivier; Geairon, Philippe; Mazurie, Joseph; Gangnery, Aline; Alunno-bruscia, Marianne; Pouvreau, Stephane; Goulletquer, Philippe.
Oyster farming is the main aquaculture activity in France, where Pacific oyster (Crassostrea gigas) is spatially cultured from the English Channel to the Mediterranean coasts. Oyster growth performance monitored along French coasts are widely heterogeneous among culture sites and over years. Many studies have been carried out to understand the effects of environmental factors on oyster growth and physiology, by using bioenergetics growth models. However, most of these studies were site-specific. As an example, the model developed by Barillé et al. (1997), which was extensively specified with more than 50 parameters, was validated in the Marennes-Oléron Bay, but cannot be successfully applied to other culture sites without re-estimating parameters or...
Tipo: Text
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00032/14367/11657.pdf

Impact du traitement de bois (CCA) sur l'écophysiologie de la moule M. edulis
Provedor de dados: 5
Autores: Goulletquer, Philippe.
In European waters, crustaceans and molluscs cause substantial economic damage on wooden structures. Chemical preservatives, such as chromated copper arsenate (CCA) have been developed to protect wood from rotting and are commonly used in many countries.
Tipo: Text
Palavras-chave: Moules; Mytilus edulis; Ecophysiologie; Chrome Cuivre Arsenic°; CCA; Traitements chimiques.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-3253.pdf

REMOULA 2000 - Réseau de croissance moule des Pertuis Charentais - Mars 2000 - Février 2001
Provedor de dados: 5
Autores: Robert, Stephane; Geairon, Philippe; Guilpain, Patrice; Razet, Daniel; Faury, Nicole; Seugnet, Jean-luc; Grizon, James; Soletchnik, Patrick; Le Moine, Olivier; Goulletquer, Philippe.
A production monitoring network focused on the blue mussel Mytilus edulis, was developed at the Charentais sounds' geographic level to assess the spatial and temporal variability of the mussel production. Similarly to the oyster growth monitoring network REMORA, an homogeneous and calibrated mussel population (L = 35.5 mm, TW = 3.35 g) was distributed into six rearing sites, representative of the sounds production. The rearing technics were compared and intercalibrated with previous growout facilities used for preliminary trials (round bags-oyster bags). The monitoring was based upon biometric and biochemical measurements on a 3 month and monthly basis, for ail and 3 sites respectively. The mortality rates showed a significant spatial and temporal...
Tipo: Text
Palavras-chave: Réseau de croissance; Mytilus edulis; Composition biochimique; Mortalité; Pertuis Charentais; Charente-Maritime; Production monitoring network; Mytilus edulis; Proximate biochemical composition; Mortality rate; Charentais sounds; Charente-Maritime.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00031/14243/11518.pdf

Recent invasion of the Japanese oyster drill along the French Atlantic coast: identification of specific molecular markers that differentiate Japanese, Ocinebrellus inornatus, and European, Ocenebra erinacea, oyster drills
Provedor de dados: 5
Autores: Garcia Meunier, Pascale; Martel, Corine; Pigeot, Jacques; Chevalier, Guillemette; Blanchard, Gérard; Goulletquer, Philippe; Robert, Stephane; Sauriau, Pierre-guy.
The direct amplification of length polymorphism technique (DALP) has been used to distinguish species-specific banding patterns in two marine gastropod oyster drills Ocenebra erinacea (Linnaeus, 1758) and Ocinebrellus inornatus (Recluz, 1851). Ocenebra erinacea is the European oyster drill, common along all European coasts. Ocinebrellus inornatus, the Japanese oyster drill, was recorded in oyster growing areas of the Marennes-Oleron Bay (SW France) for the first time in 1995. This new biological invasion could lead to an increase, which must be evaluated, in the predation risk for cultivated species i.e. oysters and blue mussels, and for littoral fishing resources along the French Atlantic coasts. As a result, since specific identification of early life...
Tipo: Text
Palavras-chave: French Atlantic coast; Ocenebra erinacea; Ocinebrellus inornatus; Marine bioinvasions; Molecular markers.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-569.pdf

Shelled Molluscs
Provedor de dados: 5
Autores: Berthou, Patrick; Poutiers, Jean-maurice; Goulletquer, Philippe; Dao, Jean-claude.
Shelled molluscs are comprised of bivalves and gastropods. They are settled mainly on the continental shelf as benthic and sedentary animals due to their heavy protective shell. They can stand a wide range of environmental conditions. They are found in the whole trophic chain and are particle feeders, herbivorous, carnivorous, and predators.  Exploited mollusc species are numerous. The main groups of gastropods are the whelks, conchs, abalones, tops, and turbans; and those of bivalve species are oysters, mussels, scallops, and clams. They are mainly used for food, but also for ornamental purposes, in shellcraft industries and jewelery. Consumed species are produced by fisheries and aquaculture, the latter representing 75% of the total 11.4 millions metric...
Tipo: Text
Palavras-chave: Management; Fishing gears; Biology; Aquaculture; Fisheries; Gastropods; Bivalves.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2001/publication-529.pdf

A single bio-energetics growth and reproduction model for the oyster Crassostrea gigas in six Atlantic ecosystems
Provedor de dados: 5
Autores: Alunno-bruscia, Marianne; Bourles, Yves; Maurer, Daniele; Robert, Stephane; Mazurie, Joseph; Gangnery, Aline; Goulletquer, Philippe; Pouvreau, Stephane.
Many studies based on bioenergetics growth models have investigated the effects of environmental factors on oyster (Crassostrea gigas) growth and physiology. However, most of these models are site-specific and cannot be applied to other culture sites without the re-estimation of parameters or re-formulation of some processes. We aimed to develop a generic growth model suitable for application in contrasting environments, with a constant set of parameters. We tested the oyster-DEB model (Bourlès et al. 2009) for the stimulation of C. gigas growth in different cohorts (spats and adults) at major shellfish culture sites in France, in several years: Arcachon (1993–1994); Marennes-Oléron (2007); Quiberon (1999, 2000, 2001); Rade de Brest (2008); Baie du...
Tipo: Text
Palavras-chave: DEB theory; Modelling; Bivalves; Crassostrea gigas; Phytoplankton; Temperature effect; Coastal environment.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00043/15403/12762.pdf

Suivi des espèces envahissantes marines à Saint-Pierre et Miquelon. Année 2013
Provedor de dados: 5
Autores: Sellier, Marion; Poitevin, Pierre; Goraguer, Herle; Faure, Jean-marie; Goulletquer, Philippe.
This work, conducted in 2013 , is a first monitoring of marine invasive species in Saint-Pierre and Miquelon archipelago. In global changing context on coastal ecosystems , accentuated by direct or indirect effects of human activities, it became essential to implement a survey on marine invasive species on Saint-Pierre and Miquelon shoreline. Fukui traps and tunicates collectors implemented on different stations as well as the timely completion of observational dives , have established the following conclusions : several non native species were detected within the local marine ecosystem. This species , such as Carcinus maenas , Ciona intestinalis , Botryllus schlosseri , Caprella mutica , etc. ... threaten some local marine ecosystems and some local...
Tipo: Text
Palavras-chave: Espèces marines invasives; Saint-Pierre et Miquelon; Aquaculture; Écosystème; Marine invasive species; Saint-Pierre and Miquelon; Aquaculture; Ecosystem.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00175/28635/27118.pdf

Culture d'huîtres creuses en eaux profondes dans le Pertuis d'Antioche. Comparaisons avec les cultures sur estran du bassin de Marennes Oléron et de Fouras et les filières d'élevage des Saumonards. Période avril 2001 - février 2002
Provedor de dados: 5
Autores: Robert, Stephane; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Guilpain, Patrice; Soletchnik, Patrick; Faury, Nicole; Seugnet, Jean-luc; Arnaud, Christophe; Chollet, Bruno; Chabirand, Jean-michel; Fleury, Pierre-gildas; Langlade, Aime; Goulletquer, Philippe; Mille, Dominique.
Le Bassin ostréicole de Marennes-Oléron, et globalement la Charente-Maritime, sont marqués depuis les années 80 (Héral, 1986), par un net recul des rendements de production qui engendrent une diminution de la rentabilité économique et un accroissement des coûts de production. La démonstration de la surcharge biologique du Bassin de Marennes-Oléron est faite depuis 1985. Cette situation a évolué depuis cette date, par une diminution des cheptels en  élevage et par une augmentation des cheptels sauvages ce qui a abouti à des plans d'entretien et de restructuration du DPM. Cependant, la situation défavorable pour la majorité des zones charentaises en terme de croissance-production est annuellement confirmée, depuis 1993 au moyen des réseaux de croissance...
Tipo: Text
Palavras-chave: Ostréiculture; Eaux profondes; Crassostrea gigas; Technique élevage; Croissance; Mortalité; Biométrie; Biochimie; Marennes Oléron.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00072/18369/15940.pdf

Culture d'huîtres creuses en eaux profondes dans le Pertuis d'Antioche - Comparaisons avec le site témoin de Fouras - Rapport préliminaire pour la période juillet 2000 - février 2001
Provedor de dados: 5
Autores: Robert, Stephane; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Guilpain, Patrice; Soletchnik, Patrick; Faury, Nicole; Seugnet, Jean-luc; Arnaud, Christophe; Chollet, Bruno; Chabirand, Jean-michel; Fleury, Pierre-gildas; Bouget, Jean-francois; Goulletquer, Philippe.
Il est important de rappeler ici les informations concernant le Projet "Culture d'huîtres creuses en eaux profondes dans le Pertuis d'Antioche" (Goulletquer, 2000). Le Bassin de Marennes-Oléron, et globalement la Charente-Maritime, sont marqués depuis les années 80 (Héral, 1985), par un net recul des rendements de production qui engendrent une diminution de la rentabilité économique et un accroissement des coûts de production. La démonstration de la surcharge biologique du Bassin de Marennes-Oléron est démontrée depuis 1985. Cette situation a évolué depuis cette date, par une diminution des cheptels en élevage et par une augmentation des cheptels sauvages ce qui a abouti à des plans d'entretien et de restructuration du DPM. Cependant, la situation...
Tipo: Text
Palavras-chave: Ostréiculture; Eaux profondes; Crassostrea gigas; Technique élevage; Croissance; Mortalité; Pertuis Antioche.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00072/18370/15942.pdf

Pêcheries minotières
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00608/71978/70675.pdf

Marine biodiversity and ecosystems' services : an updated research agenda as a follow up of the 2010 targets...
Provedor de dados: 5
Autores: Goulletquer, Philippe.
The Millenium Ecosystem Assessment (2005) demonstrated that the biodiversity is the keystone for the sustainaibility of present and future ecosystems services. In spite of the highly significant effort carried out by the Census of Marine Life over the last ten years, and an increasing research effort, marine biodiversity and precise ecosystem functioning remain largely unknown and failure to reach the CBD 2010 objectives is obvious. Meanwhile, the concept of ‘ecosystem approach’ is progressing, translated into new policies such as the revised European Common Fisheries Policy (CFP). We might question if the scientific community is ready enough to built scenarios for the future and provide integrated advice to the policy makers for biodiversity conservation...
Tipo: Text
Palavras-chave: Marine biodiversity; Ecosystems; Biodiversity governance; Fisheries management.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00015/12598/9475.pdf

Combined effects of temperature-salinity on larval survival of the Eastern oyster Crassostrea virginica in the Maryland portion of the Chesapeak Bay (USA)
Provedor de dados: 5
Autores: Goulletquer, Philippe; Heral, Maurice; Prou, Jean.
Oyster landings in the Maryland portion of the Chesapeake Bay have declined by more than 50fold since the early part of the century, despite intensive management efforts. The annual shell repletion program is the most critical programmatic element to effect recovery of the ailing Eastern oyster Crassotrea virginica stock and fishery. The overall efficacy of shell repletion management depends primarily on the success of spat settlement on the planted shell, and furthermore on their survival rate. The Operations Research techniques and mathematical programming developed by Rothschild et al. (1991) attempt to maximize spat recruitment to the oyster stock subject to a series of operational constraints. Allocation and timing of shell deployment are the most...
Tipo: Text
Palavras-chave: Larval; Settlement; USA; Chesapeake Bay; Crassotrea virginica; Oysters.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-3074.pdf

Eléments d'écophysiologie d'huîtres Crassostrea gigas issues du bassin de Marennes-Oléron
Provedor de dados: 5
Autores: Goulletquer, Philippe; Lagarde, Franck.
Le bassin de Marennes-Oléron est le premier site ostréicole européen. Depuis 1988 des mortalités chroniques apparaissent sur les élevages conchylicoles. En 1996, un programme de suivi de mortalité et des paramètres environnementaux a été développé. Les différentes conclusions retenues au cours des années antérieures font état de brusques variations de température suspectées dans l'apparition de ces mortalités. Une approche écophysiologique des huîtres par l'intermédiaire de la mesure de respiration a permis de déterminer l'effet significatif d'un stress thermique (∆T=28°C). La maturité sexuelle apparaît également comme un facteur prépondérant dans la demande métabolique. A l'issue de cette étude, il apparaît que les huîtres matures et de surcroît stressées...
Tipo: Text
Palavras-chave: Ecophysiologie; Physiologie; Huître creuse; Bassin de Marennes-Oléron.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00076/18761/16332.pdf

Open atlantic coast of Europe - a century of introduced species into french waters
Provedor de dados: 5
Autores: Goulletquer, Philippe; Bachelet, G; Sauriau, Pierre-guy; Noel, P.
This paper aims to establish a comprehensive Iist of exotic species introduced into Atlantic French waters over the last century as well as their origin, and the vectors involved in the process. At least 104 non indigenous species have been recorded in the Atlantic and Channel coastal wa• ters. Among those species, only a few (Bonamia ostreae, Crepidula fornicata) have resulted in highly significant negative impacts and side-effects on the coastal activity. In contrast, the introduction of the Japanese oyster Crassostrea gigas can be considered to be successful, sustaining a large industry counting more than 4,000 companies and 150,000 tons of yearly production. Over the last decade, French and European laws have strenghtened the controls over exotic...
Tipo: Text
Ano: 2002
URL: https://w3.ifremer.fr/archimer/doc/00000/3100/

Hydrologie du Grand Etang de Miquelon : estimation des flux. Rapport annuel 2014
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Robert, Stephane; Goraguer, Herle; Goulletquer, Philippe.
This study aims to assess the hydrological fluxes between the ‘Grand Etang’ of Miquelon and the oceanic part. Bathymetric surveys and Doppler currentmeter data acquisitions were carried out from August 14th, 2014 to November 5th, 2014 to allow the following estimates : Total area (227 Ha) and characteristics volumes (total : 7,1x106 m3; oscillating 42,8x106 m3 (40 %); half-tide 5,2 106 m3) Velocity Index of channel to evaluate the average current speed at cross-section channel Fluxes, on flood and ebb tide respectively :  - Instantaneous flow : maxima at 85,3 and 65,3 m3/s ; mean 34,2 and 26,4 m3/s. - Circulating fluxes by tide : maxima 0,96 and 1 x106 m3, mean : 0,28 and 0,41 m3 - Mean renewal : 10,7% each tide. Tidal asymetry duration was reported: flood...
Tipo: Text
Palavras-chave: Flux hydrologiques; Courantométrie; Bathymétrie; Grand Etang Miquelon; Hydrological fluxes; Currentmeter data acquisition; Bathymétry; Grand Etang Miquelon.
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00256/36692/35304.pdf

A preliminary evaluation of the European Non-native Species in Aquaculture Risk Assessment Scheme applied to species listed on Annex IV of the EU Alien Species Regulation
Provedor de dados: 5
Autores: Copp, G. H.; Godard, M. J.; Russell, I. C.; Peeler, E. J.; Gherardi, F.; Tricarico, E.; Miossec, Laurence; Goulletquer, Philippe; Almeida, D.; Britton, J. R.; Vilizzi, L.; Mumford, J.; Williams, C.; Reading, A.; Rees, E. M. A.; Merino-aguirre, R.
Developed for carrying out risk assessments under the European Commission (EC) Council Regulation No 708/2007 concerning the use of alien and locally absent species in aquaculture (ASR), the European Non-native Species in Aquaculture Risk Assessment Scheme (ENSARS) is briefly summarised, and the ‘Organism’ module is applied to the 24 species listed in ASR's Annex IV. Four other ENSARS modules (Infectious Agent, Facility, Pathway, and Socio-economic) were used to assess two case study species (European catfish Silurus glanis L. and red swamp crayfish Procambarus clarkii Girard). No Annex IV species was categorised as low risk, 10 as moderately low risk, 12 as medium risk, two as moderately high risk and none as high risk. The results are discussed and...
Tipo: Text
Palavras-chave: Aquaculture; Biological invasions; Decision support; ENSARS; EU legislation; Risk analysis.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00189/30032/29433.pdf

Analyse des lots d'huîtres du groupe de travail "Pousse en Claires" : taux de glycogène
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Gras, Paul.
L'objet du présent rapport est de préciser les caractéristiques biochimiques (i.e., taux de glycogène) des lots d'huîtres ayant préalablement fait l'objet du travail du CREAA. Le sous produit de l'analyse consiste à vérifier si le critère 'taux de glycogène' est discriminant vis à vis de produits commercialisés de même taille et d'établir des relations entre les différents descripteurs des lots.
Tipo: Text
Palavras-chave: Biochimie; Glycogène; Huître creuse; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00109/22050/19692.pdf

Aquaculture traditionnelle de l'huître creuse (Crassostrea gigas - Thunberg) sur le littoral français. Affinage automnal en bassins semi-fermés (claires ostréicoles)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Goulletquer, Philippe; Geairon, Philippe; Razet, Daniel; Faury, Nicole; Fouche, Dominique; Robert, Stephane.
L'aquaculture des huîtres est une activité traditionnelle en France depuis le moyen âge. Sur la côte atlantique, dans le bassin de Marennes Oléron, la commercialisation annuelle de C. gigas atteint environ 50 000 tonnes. Cette région bénéficie d'une infrastructure de claires ostréicoles, anciens marais salants, où les huîtres sont affinées avant commercialisation. L'huître est un produit de consommation festif dont les 3/4 se commercialisent durant les fêtes de fin d'année. A l'heure actuelle les techniques d'affinage, visant à améliorer la qualité (goût, coloration, engraissement des huîtres), sont peu fiables. Malgré les aléas météorologiques de la saison automnale, des cultures de diatomées (Skeletonema costatum) sont réalisées avec succès en bassins...
Tipo: Text
Palavras-chave: Claires ostréicoles; Affinage; Huître creuse; Crassostrea gigas; Marennes Oléron.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00199/31047/29464.pdf

Modelling growth and reproduction of the Pacific oyster Crassostrea gigas: Advances in the oyster-DEB model through application to a coastal pond
Provedor de dados: 5
Autores: Bourles, Yves; Alunno-bruscia, Marianne; Pouvreau, Stephane; Tollu, Guillaume; Leguay, Didier; Arnaud, Christophe; Goulletquer, Philippe; Kooijman, S.
A bio-energetic model, based on the DEB theory exists for the Pacific oyster Crassostrea gigas. Pouvreau et al. [Pouvreau, S., Bourles, Y., Lefebvre, S., Gangnery, A., Alunno-Bruscia, M., 2006. Application of a dynamic energy budget model to the Pacific oyster, C. gigas, reared under various environmental conditions. J. Sea Res. 56, 156–167.] successfully applied this model to oysters reared in three environments with no tide and low turbidity, using chlorophyll a concentration as food quantifier. However, the robustness of the oyster-DEB model needs to be validated in varying environments where different food quantifiers reflect the food available for oysters, as is the case in estuaries and most coastal ecosystems. We therefore tested the oyster-DEB...
Tipo: Text
Palavras-chave: Coastal Environment; Temperature effect; Food Quantifiers; Crassostrea gigas; Bivalves; Modelling; DEB theory.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6436.pdf

Approche de l'activité de prédation de l'huître creuse Crassostrea gigas par les bigorneaux perceurs Ocenebra erinacea et Ocenebra inornata. Régulation des populations de perceurs Ocenebra erinacea et Ocenebra inornata : survie vis-à-vis des températures négatives et action du brûlage sur des pontes naturelles
Provedor de dados: 5
Autores: Robert, Stephane; Grangere, Karine; Amiot, Jean-baptiste; Le Moine, Olivier; Soletchnik, Patrick; Guilpain, Patrice; Seugnet, Jean-luc; Geairon, Philippe; Goulletquer, Philippe; Razet, Daniel; Faury, Nicole; Garcia-meunier, Pascale; Martel, C.
Parmi les problèmes qui handicapent la production du bassin, la surexploitation du milieu trophique est souvent mise en référence (Bacher 1989, Héral, 1991) de la même façon des mortalités importantes sont régulièrement enregistrées principalement en période estivale Lodato M.I., 1997, Goulettquer, 1998, Soletchnick, 1998, 2000. Depuis la fin des années 1990 la prédation par bigorneaux perceurs est un problème important régulièrement signalé par les professionnels, au point que la section régionale a organisé un ramassage collectif des perceurs en avril 2001 . Ce problème n' est pas nouveau, dans les années 30, la prédation par Ocenebra erinacea était enregistrée pour ses ravages sur les bancs d'élevage de La Rochelle, Bourgneuf ou Arcachon (Robert S., et...
Tipo: Text
Palavras-chave: Bigorneaux perceurs; Ocenebra erinacea; Ocenebra inornata; Huître creuse; Crassostrea gigas; Prédation.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00077/18791/16367.pdf

Performance of triploid Pacific oysters Crassostrea gigas (Thunberg) reared in high carrying capacity ecosystem : survival, growth and proximate biochemical composition
Provedor de dados: 5
Autores: Goulletquer, Philippe; Joly, Jean-pierre; Gerard, Andre; Le Gagneur, Eric; Moriceau, Jacques; Peignon, Jean-marie; Heurtebise, Serge; Phelipot, Pascal.
Triploid oysters Crassllstrea gigas were: produced in 1990 by treating fertilized eggs with cytochalasin B (CS). Triploids, treated diploids, and controls were deployed early 1991 in a high carrying capacity ecosystem on the Eastern Coast of Normandy (France). A monthly monitoring in 1992 showed that triploids yielded significantly higher growth rate and biochemical composition. However, growth was more heterogeneous. No evidence was found for a length or weight bimodal frequency distribution within triploid groups after a 26 months rearing cycle. Triploids showed retardation of gametogenesis. Carbohydrates content in triploids remained almost constant (40%) from June to September. Their survival rates were significantly lower than controls. Moreover...
Tipo: Text
Palavras-chave: Biochemical compostion; Survival; Carrying capacity; Triploid; Growth; Oysters; Crassostrea gigas; Composition biochimique; Survie; Capacité trophque; Triploïdes; Croissance; Huîtres; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3088.pdf

Résumé général : mortalité d'huîtres sur les bancs de Ronce et Perquis, valorisation des claires ostréicoles - optimisation de l'affinage
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Ce programme fait l'objet d'un effort de recherches croissant depuis 1995. On peut rappeler que la première année d'étude s' est focalisée sur l'enregistrement des conditions environnementales au moyen d' une sonde SUBER et de l'étude des conditions de maturation des huîtres. Le programme 1997 a consisté à vérifier cette hypothèse de travail par une étude in situ d' une population homogène d' huîtres réparties (en une à une) à plat et en surélevé sur 15 sites géographiques couvrant l'ensemble des bancs de Ronce Perquis selon une distribution est-ouest et bathymétrique. Concernant la valorisation des claires ostréicoles - Optimisation de l'affinage, l'objectif de ce programme est d'analyser le fonctionnement du marais ostréicole traditionnel afin de mieux...
Tipo: Text
Palavras-chave: Ostréiculture; Mortalité; Huître creuse; Crassostrea gigas; Claires ostréicoles; Marennes Oléron.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00076/18764/16335.pdf

Alien Species Alert: Ensis directus Current status of invasions by the marine bivalve Ensis directus
Provedor de dados: 5
Autores: Gollasch, S; Kerckhof, F; Craeymeersch, J; Goulletquer, Philippe; Jensen, K; Jelmert, A; Minchin, D.
The North American bivalve mollusc Ensis directus (Conrad, 1843) (Bivalvia, Pharidae) is native to the Northwest Atlantic coasts from southern Labrador to northern Florida (Bousfield, 1960; Theroux and Wigley, 1983; Swennen et al., 1985; Abbott and Morris, 2001; Turgeon et al., 2009; Vierna et al., 2013). This species has been introduced outside its native range, with the first confirmed record from the German Bight in 1979 (Cosel et al., 1982). Thereafter, a subsequent secondary range expansion took place, and the species is presently known to occur from Spain to Norway, including the UK (e.g. Mühlenhardt- Siegel et al., 1983; Essink, 1985, 1986; Kerckhof and Dumoulin; 1987, Luczak et al., 1993; Rasmussen, 1996; Brattegard and Holthe, 1997; Eno et al.,...
Tipo: Text
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00586/69820/67710.pdf

Use of the kriging method for the stock assessment of oysters in the Chesapeake Bay
Provedor de dados: 5
Autores: Bacher, Cedric; Chai, Ai-ling; Goulletquer, Philippe.
The krlging technique Is now employed ln more and more fields: mlnlng (Journel. 1977), hydrology (Delhomme, 197B; Shamsi et al" 1988; Dingman et al" 1988), fishery (Conan, 1989) and ecology (Robertson, 1987; Schotzko and O'Keeffe, 1989, 1990). Recent developments of the mathematlcal theory tend to extend the number of applications where Il may be used. Baslcally defined for the case of a statlonary spatial process, It now encompasses more general processes assuming less and less strong hypotheses (Intrinsic hypothesls, Intrlnsic generalised hypothesis, disjunctive krlglng). In its most general formulation, it allows to study the spatial structure of a process including large scale or local trends. The basic idea remains to take Into account the spatial...
Tipo: Text
Palavras-chave: Kringing technique; Stock assessment; Oysters; Crassostrea virginica; Chesapeake Bay.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00200/31110/29518.pdf

Difficulties in sampling for estimation of phytoplankton biomass in estuarine conditions : variabilities and precisions at different temporal scales in the case of the bay Marennes Oleron
Provedor de dados: 5
Autores: Heral, Maurice; Goulletquer, Philippe; Razet, Daniel; Prou, Jean; Ravail, Brigitte; Maestrini, Serge.
Different sampling strategies have been tested for estimation of phytoplanktonic biomasses in a bay submitted to estuarine conditions and high velocity of currents. Daily variations showed that for a precision of 5% of the daily mean, it is necessary to sample with a 1 hour and a half time scale. Systematic sampling appears to be more preceise than the random sampling. A sampling during 35 days at low tide and at high tide, during the phytoplanktonic bloom, showed the large variability between the days. A precision of 30% of the mean biomass of the month is obtained with a 8 days time scale. Comparison between tidal cycle sampling (10% of precision) with a punctual sample in the middle of the day did not show large differences. As the main variability is...
Tipo: Text
Palavras-chave: Marennes Oleron; Phytoplanktonic biomasses; Estimation.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/acte-2877.pdf

Empirical modelling of the growth of Ruditapes philippinarum by means of non linear regression on factorial coordinates
Provedor de dados: 5
Autores: Goulletquer, Philippe; Bacher, Cedric.
In order to highlight the main factors accounting for the growth of clams in Marennes Oleron Bay, three locations were investigated in 1984-1985. First, factor analysis provided information on fluctuations of the environment. Second, principal components analysis was used to study ecological phenomena. The main axes explained the growth rate, which was included in an allometric model. Its properties were then studied by means of sensitivity analysis.
Tipo: Text
Palavras-chave: Sensitivity analysis; Non linear model; Principal components analysis; Ruditapes philippinarum; Trophic relationships; Analyse de sensibilité; Modèle non linéaire; Analyse en composantes principales; Ruditapes philippinarum; Relations trophiques.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/publication-2879.pdf

Historical baselines in marine bioinvasions: Implications for policy and management
Provedor de dados: 5
Autores: Ojaveer, Henn; Galil, Bella S.; Carlton, James T.; Alleway, Heidi; Goulletquer, Philippe; Lehtiniemi, Maiju; Marchini, Agnese; Miller, Whitman; Occhipinti-ambrogi, Anna; Peharda, Melita; Ruiz, Gregory M.; Williams, Susan L.; Zaiko, Anastasija.
The human-mediated introduction of marine non-indigenous species is a centuries- if not millennia-old phenomenon, but was only recently acknowledged as a potent driver of change in the sea. We provide a synopsis of key historical milestones for marine bioinvasions, including timelines of (a) discovery and understanding of the invasion process, focusing on transfer mechanisms and outcomes, (b) methodologies used for detection and monitoring, (c) approaches to ecological impacts research, and (d) management and policy responses. Early (until the mid-1900s) marine bioinvasions were given little attention, and in a number of cases actively and routinely facilitated. Beginning in the second half of the 20th century, several conspicuous non-indigenous species...
Tipo: Text
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00454/56544/58253.pdf

Obtention de souches conchylicoles performantes par polyploïdisation (5ème partie)
Provedor de dados: 5
Autores: Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Heurtebise, Serge; Garnier, Jacqueline; Martin, Anne-genevieve; Claude, Serge; Langlade, Aime; Joly, Jean-pierre; Goulletquer, Philippe; Ruelle, Francois; Coatanea, Denis; Oheix, Jocelyne; Vercelli, Catherine; Chabirand, Jean-michel; Maurer, Daniele; Borel, Michel; Cardinal, Mireille; Cornet, Josiane; Le Pennec, Marcel; Le Mercier, A.
This fifth part of the polyploidisation program reports the experiments that were conducted in 1993 and that were devoted to : - monitoring growth performance of Ostrea edulis diploids and triploids in La Trinité sur Mer and Palavas - monitoring growth performance of Crassostrea gigas diploids and triploids in Port en Bessin, Marennes Oleron (2 locations), Arcachon and Palavas - comparative study of gametogenesis for C. gigas diploids and triploids - comparative study of C. gigas diploids and triploids using sensorial analysis At the end of fifth year, it was clear that triploids are advantageous although such a statement must be moderated according to locations. The gametogenesis stydy showed that triploidy is associated with partial to complete...
Tipo: Text
Palavras-chave: Crassostrea gigas; Ostrea edulis; Cytogenetics; Polyploidy; Crassostra gigas; Ostrea edulis; Cytogénétique; Polyploïdie.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/rapport-3860.PDF

Seasonal changes in carbohydrate metabolism and its relationship with summer mortality of Pacific oyster Crassostrea gigas (Thunberg) in Marennes-Ole'ron bay (France)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Faury, Nicole; Goulletquer, Philippe.
This paper investigates the biological responses of Crassostrea gigas under traditional culture conditions on a mudflat in Marennes-Oleron bay. Summer mortality has been regularly observed in recent years in oysters reared using "on bottom" culture conditions. The present study attempts to provide a better understanding of the mortality phenomenon through biological parameters. Classical 'field parameters' such as mortality and growth rates, and quality index (dry meat weight/ dry shell weight x 1000) were monitored. Additional parameters, as biochemical composition of oyster meat and glucose incorporation capacity, were included as potential new bioindicators. The work highlighted a critical timing (May-June) preceding the summer mortality and...
Tipo: Text
Palavras-chave: Marennes Oleron bay; Glycogenolysis; In vivo; Glycogen incorporation; Maturation; Summer mortality; Crassostrea gigas.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1116.pdf

Diversification de la production conchylicole : cultures de palourdes sur estran (Compte rendu n°4)
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Winter mortalities of the manila clam rl1d1 tapes philippinarum along the french atlantic coasts : biochemical and ecophysio-logical aspects. For some years, high mortalities on Manila clam's breeding occured at the end of Winter on Atlantic coasts. The ecophysioIogicaI survey of population was performed using a ground culture technique. This permitted to characterize the conditions related with mortalities such as a loss in dry weight and a decrease of metabol ic reserves. A comparison of biochemical composition was conducted during the occurence of mortality on different sites along the Atlantic coast, and in different ecosystems (tidal land, oysters ponds).
Tipo: Text
Palavras-chave: Tidal bottom; Oyster pond; Glycogen; Ruditaoes phiIippinarum; Mortality; Estran; Claire ostréicole; Glycogène; Ruditaoes phiIippinarum; Mortalité.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/rapport-1566.pdf

Manila clam Tapes philippinarum culture: Sediment-clam interactions
Provedor de dados: 5
Autores: Goulletquer, Philippe; Robert, Rene; Trut, Gilles.
Manila clam (Tapes philippinarum) culture and sediment interactions were tested by comparing two rearing areas, including an oceanic ('Le-Ferret') and a more estuarine ('Les-Jacquets') sites in the bay of Arcachon (France). The growth of a calibrated clam population (10-mm spat) was monitored in these two areas with a concomitant sediment-water interface survey over a 1.5-year period. Two sites per area, including control and rearing plots, were sampled on a monthly basis. The potential clam farming impacts by bioturbation and interactions were examined at three sediment depths: 0-1, 1-2 and 2-10 cm. Moreover, the main hydrobiological parameters were measured on a weekly basis to establish a relationship between these parameters and sediment-water...
Tipo: Text
Palavras-chave: Bay of Arcachon; Tapes philippinarum; Sediment water interface; Bioturbation; Clam culture; Bassin d'Arcachon; Tapes philippinarum; Interface eau sédiment; Bioturbation; Vénériculture.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-864.pdf

Mortalité de l'huître Crassostrea gigas dans le bassin de Marennes-Oléron: étude de la variabilité spatiale de son environnement et de sa biologie par un système d'informations géographiques (SIG)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Faury, Nicole; Razet, Daniel; Geairon, Philippe; Goulletquer, Philippe.
The summer mortality patterns was studied in 1996 on the Ronce-les-Bains oyster bank (175 ha), located on the southern part of the Bay Marennes-Oleron (Atlantic coastline). Studies on growth, sexual maturation, survival rates and environmental variables were compared at fifteen experimental sites (on- and off-bottom culture). After 7 months, cumulative mortality reached 8-19 and 23-33% for off-bottom and on-bottom culture, respectively which is significantly higher for the latter case. A seasonal mortality trend was noted, with a significant increase related to air temperature greater than 20 degrees C and with a significant pre-spawning glycogen catabolism. Based on soft tissue flesh growth results from both types of culture, several empirical models were...
Tipo: Text
Palavras-chave: Atlantic Ocean; Crassostrea gigas; Mortality; Growth rates; Océan Atlantique; Crassostrea gigas; Mortalité; Croissance.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-862.pdf

Impact of climatic and anthropogenic changes on living resources in the Bay of Biscaye
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Fisheries and aquaculture are of major importance to the coastal communities throughout the Bay of Biscaye. Almost half of French fishermen rely on catches from the Bay which achieve and estimated first sale value of more than €525m annually. Moreover, emblematic species such as eels have an additional economic as weil as social value for coastal communities. Similarly, the main French shellfish rearing areas are located within the Bay of Biscaye. They contribute predominantly to the yearly spat (mussel &amp; oyster) recruitment, used to sustain the entire French shellfish industry. These activities have a direct impact on ecosystem functioning and biodiversity. Meanwhile, drastic environmental changes have been reported over the last 30 years, including a...
Tipo: Text
Palavras-chave: Crassostrea gigas; Solea solea; Living resources; Ecosystem; Biodiversity; Impacts; Climate change.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-3488.pdf

Optimisation of the traditional Pacific cupped oyster (Crassostrea gigas Thunberg) culture on the French Atlantic coastline: autumnal fattening in semi-closed ponds
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Goulletquer, Philippe; Geairon, Philippe; Razet, Daniel; Faury, Nicole; Fouche, Dominique; Robert, Stephane.
Oyster farming in France is a traditional activity. Each year, 60,000 tons of C. gigas are fattened before being sold. Present-day fattening techniques for improving oyster taste and colour and increasing the meat weight are not particularly reliable. To optimize the fattening process, large phytoplanktonic blooms were induced in ponds, then distributed in oyster ponds. Despite the variability of the autumn weather conditions, diatoms (Skeletonema costatum) have been successfully cultured in outdoor ponds. During neap tides (when no seawater replenishes the water in the oyster beds), between mid-October and mid-December 1996, the fattening index (the weight of the meat) was constant or increased by 10-15% when a supplement of algae of 380.000...
Tipo: Text
Palavras-chave: Fattening process; Crassostrea gigas; Oyster farming; Marennes Oleron Bay.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/publication-478.pdf

Impact on non target organisms of anti-marine wood-borer treatments. Evaluation of stress imposed by treatments on organisms from test sites
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Gras, Paul; Adessi, L.
In European waters, significant economic damages to wooden structures are caused by bivalves molluscs and crustaceans. Treatments like copper-chrome-arsenic mixtures (CCA) were designed to prevent settlement of these wood borer species. However, limited and conflicting evidence regarding the toxicity to non-target organisms are available in the literature. This report aims to provide insights regarding the CCA leachates' toxicity to an important aquaculture species, the blue mussel Mytilus edulis for which much information on normal and stressed physiology is available for purposes of comparisons. The mussels are usually considered as a particularly suitable species for biological monitoring (Smaal and Widdows, 1994). To address the CCA leachate issue, two...
Tipo: Text
Palavras-chave: Bivalvia; Mussel; Mytilus edulis; Copper-chrome-arsenic (CCA); Treatment; Feeding; Absorption.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00043/15437/12788.pdf

Seuil de production de pseudo-fécès de l'huître creuse du Pacifique : Crassostrea gigas (Thunberg) dans des conditions de faibles charges particulaires
Provedor de dados: 5
Autores: Soletchnik, Patrick; Goulletquer, Philippe; Geairon, Philippe; Razet, Daniel.
This study is part of a comprehensive research program focusing on the oyster shellfish management in the Marennes-Oleron Bay: Within this program, a task aimed to develop a biological model of the Pacific cupped oyster Crassostrea gigas. Our study addressed the issue of pseudo-faeces production threshold under various diet quality levels. Pseudo-faeces sampling was carried out using particulate matter concentration below Il mg 1-1 The various modalities prompted us to define two pseudo-faeces production models. The first model was developed using natural seawater. The organic matter ratio ranged from 25 to 45% while the pseudo-faeces production threshold reached 2.9 to 4.4 mg 1-1 of total particulate matter. The second model was established using seawater...
Tipo: Text
Palavras-chave: Marennes Oleron; Pseudo faeces; Crassostrea gigas; Oysters; Biological model; Marennes Oléron; Pseudo fécès; Crassostrea gigas; Huîtres; Modèle biologique.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3087.pdf

Limiting nutrients of oyster pond seawater in the Marennes-Oleron region for Haslea ostrearia : applications to the mass production of the diatom in mesocosom experiments
Provedor de dados: 5
Autores: Turpin, Vincent; Robert, Jean-michel; Goulletquer, Philippe.
Bioassays were carried out with the 'blue diatom' Haslea ostrearia Simonsen, which is responsible for oyster greening during the fattening period of Crassostrea gigas Thunberg in oyster ponds. Samples of seawater were taken from two oyster ponds: one without oysters and the other with 20 oysters per m_, maximal density allowed by the French AFNOR norm for 'refinement'. The aims were to clarify the nutrient requirements of this diatom, also to elucidate the eventual influence of C. gigas at this density on the seawater fertility and to envisage the mass production of this diatom by pond fertilization. Examination of cell numeric densities at the end of bioassays allows us to conclude that silicate was the first limiting nutrient, closely followed by...
Tipo: Text
Palavras-chave: Marennes Oleron; Oyster ponds; Mesocosm experiment; Bioassay; Haslea ostrearia; Bacillariophyceae; Limiting nutrients; Marennes Oléron; Claires à huîtres; Expérience en mésocosmes; Bioessai; Haslea ostrearia; Bacillariophyceae; Nutriments limitants.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-3096.pdf

A bibliography of the Manila clam Tapes philippinarum
Provedor de dados: 5
Autores: Goulletquer, Philippe.
A bibliography of over 1,400 papers on reproduction, recruitment, genetic, pathology, basic biology, and the geographic distribution of the Manila clam Tapes philippinarum is compiled to provide a guide to scientists. This review aims to facilitate access and diffusion of scientific works carried out on this species to the international scientific community concerned by Tapes philippinarum. The bibliography includes publications as well as grey literature published around the world since the early century. Moreover, the large synonymy of Tapes philippinarum and the species geographic distribution are reviewed and updated. The species importance is assessed through public fishery landings and aquaculture production per country. The D'v'eral1 worldwide...
Tipo: Text
Palavras-chave: Bibliography; Tapes philippinarum; Manila clam; Synthèse bibliographique; Tapes philippinarum; Manila clam.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/rapport-3221.pdf

Effets d'enrichissements azotés sur la croissance des palourdes mises en élevage dans les claires du bassin de Marennes-Oléron
Provedor de dados: 5
Autores: Goulletquer, Philippe; Razet, Daniel; Prou, Jean; Garnier, Jacqueline; Taillade, Sylvie; Heral, Maurice; Peyre, R; Faivre, C.
Etant donné que la production de mollusques (palourdes ou huîtres) est limitée à 0,8 kg à 1 kg au m2 soit 40 à 50 palourdes adultes de 20 g au m2, il est intéressant d'essayer de forcer cette production en augmentant la production primaire qui est le facteur limitant de la production de palourdes. Cette production primaire dépend des apports en sels nutritifs en effet les travaux antérieurs de Zanette (1979), de Zanette et Garnier (1980), de Robert (1984) ont mis en évidence que les biomasses phytoplanctoniques ne peuvent dépasser un certain seuil à cause de l'épuisement progressif en sels nutritifs. Robert et al. (1984) ont mis en évidence, dans les claires de la Baie de Bourgneuf que l'azote est le premier facteur limitant de la croissance...
Tipo: Text
Ano: 1985
URL: http://archimer.ifremer.fr/doc/00389/50053/50641.pdf

Hydrologie du Grand Etang de Miquelon. Estimation des flux et renouvellements
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Robert, Stephane; Coudray, Sylvain; Fiandrino, Annie; Goraguer, Herle; Goulletquer, Philippe.
This study aims to assess the hydrological fluxes between the ‘Grand Etang’ of Miquelon and the oceanic part. Bathymetric surveys and Doppler current meter data acquisitions were carried out from August 14th, to November 5th, 2014 and from April 1st, to end of July 2015 to allow the following estimates : Total area (227 Ha) and characteristics volumes (total : 6,7 106 m3; oscillating 2,8 106 m3 (40 %); half-tide 5,2 106 m3) Velocity Index of channel to evaluate the average current speed at cross-section channel Fluxes, on flood and ebb tide respectively : Instantaneous flow: maxima at 94,2 et 65 m3/s mean 37.2 et 24.5 m3/s. in 2014 and maxima 85,03 et 73,62 m3/s mean 26,22 et 28,20 m3/s in 2015. Circulating fluxes by tide : maxima 1,06 and 1,09 106 m3,...
Tipo: Text
Palavras-chave: Flux hydrologiques; Courantométrie; Bathymétrie; Grand Etang Miquelon; Modélisation; Hydrological fluxes; Current meter data acquisition; Bathymetry; Grand Etang Miquelon; Modelling.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00332/44325/43904.pdf

Alien Species Alert: Didemnum vexillum Kott, 2002: Invasion, impact, and control
Provedor de dados: 5
Autores: Mckenzie, Cynthia; Reid, Vanessa; Lambert, Gretchen; Matheson, Kyle; Minchin, Dan; Pederson, Judith; Brown, Lyndsay; Curd, Amelia; Gollasch, Stephan; Goulletquer, Philippe; Occhipinti-ambrogi, Anna; Simard, Nathalie; Therriault, Thomas.
Didemnum vexillum Kott (2002) is a high-impact, globally-invasive, colonial tunicate species that is native to Japan (Lambert, 2009; Stefaniak et al., 2012). It is generally a temperate cold-water organism, and its introduced range currently includes New Zealand, the Netherlands, France, Ireland, United Kingdom, Spain, Italy, and both the west and east coasts of the United States and Canada (Lambert, 2009; Stefaniak et al., 2012; Tagliapietra et al., 2012; Ordóñez et al., 2015, Vercaemer et al., 2015). Like other invasive tunicates, D. vexillum has the capacity to reproduce rapidly, outcompete native species, deteriorate environmental integrity, and cause significant economic harm (Lambert, 2005; Blum et al., 2007; Daniel and Therriault, 2007; Langyel et...
Tipo: Text
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00378/48888/49327.pdf

Mise en évidence par traçage isotopique naturel de ressources trophiques des moules dans la Baie de l'Aiguillon (France)
Provedor de dados: 5
Autores: Richard, Pierre; Blanchard, Gerard; Goulletquer, Philippe.
The trophic resources of cultivated mussel have! been characterized and their contribution to the food of these molluscs estimated in the Bay of Aiguillon (France) through the analysis of their natural C and N isotope composition. The contribution of terrestrial organic matter (&amp;#948;(13)C = -27 to -34 %0) to mussel food resources is around 10% along the year, except in winter (15 10 30 %). A large seasonal variation is observed in the utilization of oceanic phytoplanktoll (&amp;#948;(13)C = -19 to -21.5 %0) and of littoral benthic productions (microphytobenthos and phanerogame detritus,&amp;#948;(13)C = -12.0 to -16.7 %0). Overall, the main food source of mussels is formed by benthic productions for molluscs grown on poles, in peculiar in the South of...
Tipo: Text
Palavras-chave: Détritus; Production primaire; Isotope stable; Source trophique; Moule.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/publication-2774.pdf

Dynamique de renouvellement des masses d'eaux du Grand Etang de Saint Pierre et Miquelon : rapport préliminaire
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Goraguer, Herle; Poitevin, Pierre; Robert, Stephane; Goulletquer, Philippe.
In 2013, the project ‘Assessment of the renewable rate of the seawater masses in the Miquelon ‘Grand Etang’ ‘ focused essentially on (1) building a data set originating from all partners (e.g., DTAM, IGN), (2) preliminary sampling of current patterns so as to facilitate the 2014 field sampling strategy. Besides this approach, a census of aerial pictures dated from 1950, 1990 and 2005 were studied to assess the temporal trends of this geographic sector. The field work to be carried out in 2014 are: 1) Bathymetry: data acquisition in the ‘Grand Etang’ in the area presently used for mussel long lines culture to obtain a comprehensive data set, transversal profiles at the strait level at the near vicinity of the current pattern measuring station. 2) Current...
Tipo: Text
Palavras-chave: Courantométrie; Bathymétrie; Saint Pierre &amp; Miquelon; Current meters; Bathymetry; Saint Pierre &amp; Miquelon.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00175/28581/26975.pdf

Evolution de la température et de la salinité dans l'estuaire de la Charente de juin à novembre 1999
Provedor de dados: 5
Autores: Robert, Stephane; Razet, Daniel; Goulletquer, Philippe; Soletchnik, Patrick; Geairon, Philippe; Le Moine, Olivier; Faury, Nicole; Mineur, Frederic; Seugnet, Jean-luc.
L'aménagement du fleuve Charente constitue un enjeu particulièrement important tant au niveau des activités de la bande côtière que pour le bassin versant. Au niveau du littoral charentais, et en particulier pour la conchyliculture, le fleuve Charente représente le principal apport d'eaux douces, et donc d 'éléments nutritifs, essentiels au développement de la production primaire et des larves d'huîtres. Ainsi, les apports d'eau douce sont importants pour le développement du phytoplancton (printemps, été, automne), le développement des larves d'huîtres en période estivale qui requiert une dessalure, et la qualité des huîtres en fin d'année. Les suivis des caractéristiques de la Charente sont par conséquent particulièrement importants et ont déjà fait...
Tipo: Text
Palavras-chave: Salinité; Température; Evolution temporelle; Estuaire; Paramètres hydrologiques; Charente; Bassin de Marennes Oléron.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00072/18363/15935.pdf

Harmful Algal Blooms (HABs) and Black Mussel Mytilus galloprovincialis (Linnaeus, 1758) Culture in Izmir Bay (Iskele-Urla)-Turkey: Preliminary Results on the Annual Feeding Cycle Using a Qualitative Approach
Provedor de dados: 5
Autores: Lok, Aynur; Metin, Gulnur; Acarli, Sefa; Goulletquer, Philippe.
Considering the filtration capacity of mussels to qualitative particle selection, our study focused directly on ingested species by assessing mussel stomach content of various size classes (1-5 cm) over a year (August 97-June 98) rather than monitoring seawater samples. Different size of mussels (1, 2, 3, 4, 5 cm in length) was sampled monthly from the sides of fish cage floats in Urla-Izmir. Stomach contents were analyzed under microscope and different plankton species were grouped taxonomically. Bacillariophycea, Dinophyceae, Oxyphceae, Euglenophyceae as phytoplanktonic species were observed in the stomach contents of mussels as well as zooplanktonic species including Ciliata, Cladocera, Copepod, bivalve and gastropod larvae. Over the sampling period,...
Tipo: Text
Palavras-chave: Mussel; Mytilus galloprovincialis; Harmful; Phytoplankton; Stomach content; Aegean Sea.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00032/14329/11621.pdf

Bilan de l'année 1996 : Cultures d'huîtres en eaux profondes ; Suivi de l'activité physiologique de C. gigas sur le banc de Ronce (mortalités anormales sur le banc de Ronce) ; Valorisation des claires ostréicoles
Provedor de dados: 5
Autores: Goulletquer, Philippe; Le Moine, Olivier; Soletchnik, Patrick; Razet, Daniel; Turpin, Vincent; Robert, Jean-michel; Gras, Paul; Faury, Nicole; Geairon, Philippe; Taillade, Sylvie; Lodato, Marie; Lagarde, Franck.
La contractualisation SRC/IFREMER-URAPC concernait en 1996 trois actions spécifiques : • Expertise pour les cultures d'huîtres en eaux profondes, • Suivi de l'activité physiologique sur le banc de Ronce, • Valorisation des claires ostréicoles - optimisation du processus d'affinage. Le premier thème n'a pu être abordé que via les différentes réunions préparatoires SRC Ré Centre Ouest, Marennes-Oléron et les commissions des cultures marines. Depuis l'accord de la CCM de La Rochelle en date du 11/04/1996, le dossier reste en attente d'un accord budgétaire des différents partenaires. Le second thème concerne le suivi de l'activité physiologique des huîtres creuses sur le banc ostréicole de Ronce-Perquis. La méthodologie est basée sur l'utilisation d'un...
Tipo: Text
Palavras-chave: Ostréiculture; Elevage en eaux profondes; Crassostrea gigas; Physilogie; Mortalité; Claire ostréicole; Bassin de Marennes Oléron; Charente-Maritime.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00102/21316/18936.pdf

Rapport d'activité 1996 de l'Unité de Recherche Aquacole en Poitou-Charentes
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Rapport d'activité 1996 de l'Unité de Recherche Aquacole en Poitou-Charentes.
Tipo: Text
Palavras-chave: Aquaculture; Physiologie; Invertébrés marins; Croissance; Estimation stocks; Rapport activités.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00071/18255/15818.pdf

Diversification de la production conchylicole : cultures de palourdes sur estran (Compte rendu n°3)
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Since 1984, experiments have been carried out on clam Ruditapes philippinarum foreshore culture, with a one year pond pre-growth. Culture conditions are now well-known: population level with a tide coefficient of around 70 to 80, sediment of silty or fine grain size, sediment stability over the culture period-between the end of April and November. This culture possibility gives way to a diversification of production in the shellfish culture basin of Marennes-Oléron and can be used as an alternative to oyster overexploitation. Clam densities (2 kg/m²) are five times lower than oyster and the Ruditapes philippinarum filtration rate is 20% lower than that of Crassostrea gigas.
Tipo: Text
Palavras-chave: Marennes Oléron; Culture en claire; Culture sur estran; Ruditapes philippinarum.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/rapport-3842.PDF

The shell of Cardium edule, Cardium glaucum and Ruditapes philippinarum : organic content, composition and energy value, as determined by different methods
Provedor de dados: 5
Autores: Goulletquer, Philippe; Wolowicz, M.
Assessments of the quantity of organic matter in shells were made both by ignition at 475°C and by chemical extraction in O•1M trichloroacetic acid. The quantity of organic matter obtained by ignition at 475°C was over-estimated by 2 to 4•8 times, depending on the species studied (Ruditapes philippinarum, Cardium edule, Cardium glaucum). A technique of extraction by O•lM trichloroacetic acid, filtration on Whatman CFjC filter and weighing of remaining ashes after ignition (450°C) is proposed, Energy values of the shell organic matter varied from 17•00(±0•60) Jmg 1 to 24•0 (±2'87) Jmg 1 depending on the species and the geographic location. In the energy budget, these methods have made it possible to obtain an estimate of the energy mobilised in the...
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/publication-2883.pdf

Niveau de ploïdie des huîtres des bassins de captage de Marennes-Oléron et Arcachon
Provedor de dados: 5
Autores: Cornette, Florence; Grouhel, Stephanie; Sharbel, Tim; Boudry, Pierre; Goulletquer, Philippe; Lapegue, Sylvie.
La mise en place du réseau « biovigilance » résulte des recommandations formulées dans le cadre de l’expertise indépendante demandée par le Comité Scientifique du Ministère de l’Agriculture et de la Pêche concernant « l’effet d’un flux éventuel d’huîtres tétraploïdes dans les zones conchylicoles ». Il avait été alors préconisé de réaliser « une biovigilance légère, avec mesure régulière du taux d’huîtres tétraploïdes dans les bassins conchylicoles ». Le sous-projet « Réseau biovigilance » s’inscrit dans le projet Ifremer « Typologie et surveillance des systèmes de productions aquacoles » du programme de recherches «Durabilité des systèmes de production » du thème « Surveillance et optimisation des productions aquacoles ». Ce réseau a pour objectif d’être...
Tipo: Text
Palavras-chave: Reproduction; Captage; Arcachon; Marennes Oléron; Génétique; Crassostrea gigas; Ploïdie; Huîtres.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00043/15445/12815.pdf

Optimisation de l'affinage en claires traditionnelles par une complémentation en phytoplancton "fourrage"
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Razet, Daniel; Soletchnik, Patrick; Faury, Nicole; Goulletquer, Philippe.
Experiments, carried out from 5 October to 6 December 1995, were done to determine if trophic capacity of traditional oyster ponds increases after adding phytoplankton cultured with mineral enrichment.
Tipo: Text
Palavras-chave: Marennes Oléron; Phytoplancton; Claires ostréicoles; Capacité trophique.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-3259.pdf

Fluctuating asymmetry and mortality in cultured oysters (Crassostrea gigas) in Marennes-Oleron basin
Provedor de dados: 5
Autores: Frechette, Marcel; Goulletquer, Philippe; Daigle, Gaétan.
Japanese cupped oysters suffer summer mortality in many culture sites along the French Atlantic coast. To ascertain whether mortality might be associated with morphological features of the shells, we estimated fluctuating asymmetry (FA) of hatchery/nursery-produced oysters kept in culture bags in the intertidal. FA is defined as random variations from a perfect symmetry plane (bilateral or radial) in some morphological trait. FA increases with disruption of homeostasy during ontogeny and has both genetic and environmental determinants. We found significant differences in FA between dead and live oysters in two of our three study groups. Therefore, lack of developmental stability may be involved in the summer mortality syndrome of oysters. We also found...
Tipo: Text
Palavras-chave: Oyster; Mortality; Fluctuating asymmetry; Aquaculture.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/publication-575.pdf

Diversification de la production : culture de palourdes sur estran, premiers résultats 1984 semis expérimentaux 1985
Provedor de dados: 5
Autores: Goulletquer, Philippe.
The study of foreshore clam culture with three immersion levels (40, 50, 70) has demonstrated a backlog in clam growth on the highest level, as well as a reproduction backlog and a weakened physical state during winter for populations unimmersed with a tide coefficient of 40-50. But the available areas for these cultures (areas that have not been allocated to oyster or mussel culture) are those unimmersed with those tide coefficients. Thus, it is not advised to extend the surfaces granted in the Marennes-Oléron basin, but on the contrary to use those granted to oyster culture but which are not exploited. This solution was the one accepted for the 1985 experimental seedings conducted over a 3 000 m² area on the Isles of Ré and Oléron and in Marennes, on...
Tipo: Text
Palavras-chave: Marennes Oléron; Mortalité; Biomasse; Croissance pondérale; Croissance linéaire; Estran; Elevage; Palourdes.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/rapport-3839.PDF

Rapport d'activité 1997 du Laboratoire Conchylicole de Poitou-Charentes La Tremblade
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Rapport d'activité 1997 du Laboratoire Conchylicole de Poitou-Charentes LCPC de La Tremblade
Tipo: Text
Palavras-chave: Conchyliculture; Physiologie; Réseau surveillance; Rapport Activité; Poitou Charentes; Marennes Oléron.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00072/18275/15844.pdf

Rapport d'activité 1994 du Laboratoire Génétique, Aquaculture et Pathologie de La Tremblade - Bouin
Provedor de dados: 5
Autores: Gerard, Andre; Baud, Jean-pierre; Renault, Tristan; Goulletquer, Philippe.
Rapport d'activité 1994 du Laboratoire Génétique, Aquaculture et Pathologie de La Tremblade et Bouin.
Tipo: Text
Palavras-chave: Génétique; Pathologie; Invertébrés marins; Rapport Activité.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00071/18252/15815.pdf

Journées Conchylicoles IFREMER Centre de Nantes 3 et 4 avril 2001
Provedor de dados: 5
Autores: Goulletquer, Philippe; Le Moine, Olivier; Rivet, Florence; Conche, Nelly; Dupuy, Beatrice.
Les journées conchylicoles sont organisées tous les 2 ans par le Département RA afin d'effectuer un point sur l'avancement des travaux de recherche. Elles se veulent être un lieu de discussion et d'échanges entre les différents laboratoires et doivent permettre des présentations orales, y compris par les techniciens de ces laboratoires. C'est une des seules occasions de lieu d'information directe, et de regroupement de l'ensemble des acteurs de ces programmes pendant 2 journées. Lors des journées organisées en 1999, la participation des structures régionales et départementales de transfert avait déjà permis un transfert d'information des résultats IFREMER vers celles-ci. En plus de leur participation, une présentation orale de leurs activités respectives a...
Tipo: Text
Palavras-chave: Réseau Surveillance; Virologie; Ecophysiologie; Immunologie; Physiologie; Système de production; Bactériologie; Génétique.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00200/31116/29527.pdf

Relation entre la capacité trophique de l'écosystème "claire ostréicole" et la production de l'huître Crassostrea gigas en période d'affinage
Provedor de dados: 5
Autores: Soletchnik, Patrick; Razet, Daniel; Goulletquer, Philippe; Geairon, Philippe; Le Moine, Olivier; Faury, Nicole.
This study presents an environmental survey o foyster  ponds in Marennes Oléron Bay (France). Physical and biological parameters were recorded in continuous to study this mesocosm (450 m2 surface). The trophic capacity of the water column was assessed and used as an imput signal in the biological model of Crassostrea gigas. Oyster production in earthen-ponds was compared to the biological model results. Simulation was carried out experimental results to investigate temperature and food effect on energetic budget of Crassostrea gigas during summer and winter
Tipo: Text
Palavras-chave: Mesocosm study; Crassostrea gigas; Pond; Oyster rearing; Modèle biologique; Ressource trophique; Affinage; Claires ostréicoles; Crassostrea gigas; Huître.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-3236.pdf

Mortalité et croissance de l'huître creuse C. gigas dans le bassin de Marennes Oléron. Résultats obtenus sur le site atelier de Ronce-Perquis en 1997-1999
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Faury, Nicole; Razet, Daniel; Geairon, Philippe; Robert, Stephane; Goulletquer, Philippe; Taillade, Sylvie.
The 1999 monitoring of the C. gigas mortality rates showed a 32 to 40% loss for the on-bottom rearings located on the Ronce-Perquis oyster bank. In 1997, the averaged mortality rate varied between 23 and 29% without significant site effect. These mortality rates were ranging from 17 to 32% in 1998 with significant limited mortality rate on site 4 (17%). However, those rates were underestimated by 7 to 8%, based on our 1999 study, Actually, the spatial distribution for these rates on 2 experimental sites divided into 25 subunits demonstrated a large variability ranging from 17-37% and 22-56% for sites 1 and 2, respectively. In spite this large variability, the mortality rates results were larger on the muddy bottom site. In contrast to site 1, the oysters...
Tipo: Text
Palavras-chave: Bay of Marennes Oleron; Crassostrea gigas; Reproductive effort; Biochemical composition; Growth; Sampling strategy; Mortality rates; Bassin de Marennes Oléron; Crassostrea gigas; Effort de reproduction; Composition biochimique; Croissance; Méthodologie d'estimation; Taux de mortalité.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/2000/rapport-1641.pdf

La mytiliculture dans la Manche. Biomasses en élevage et croissance de Mytilus edulis L.
Provedor de dados: 5
Autores: Goulletquer, Philippe; Joly, Jean-pierre; Le Gagneur, Eric; Ruelle, Francois.
This report describes the mussel Mytilus edulis sampling stock strategy developed to carry out stock assesments along the French Normandy coastline between 1989 and 1993. The overall totalnetweight reached 13,992 metric tons in 1993 with 27% precision level. Simultaneously, a growth study was carried out on 36 experimental sites to estimate overall variability. Individual total weight varied from 6.6 to 12 g at rearing cycle completion. An empirical management model conceming the Western Cotentin rearing areas was proposed and explained 68% of total weight variance. Based on a stepwise multilinear relationship, the model linked overall growth performance to local stocking density, tidal distribution, and distance from the main runoffs inputs. It aims to...
Tipo: Text
Palavras-chave: Mytilus edulis; Manche; Stock; Croissance; Mytilus edulis; Manche; Stocking density; Growth.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00072/18360/15932.pdf

Gestion des écosystèmes conchylicoles : le cas des pertuis charentais
Provedor de dados: 5
Autores: Goulletquer, Philippe; Heral, Maurice.
The nutritional capacity of an oyster culture basin relies on the nutrient input, as well as the hydrodynamic which conditions the time of residence of the masses of water enabling the development of the phytoplankton. This limited amount of food has to be shared between the different natural populations and the cultivated ones (oysters or mussels). The total amount of these biomasses has to be controlled so as not to exceed the capacity limit.
Tipo: Text
Palavras-chave: Biomasse; Capacité nutritionnelle; Conchyliculture; Charente Martime; Pertuis charentais; Ecosystème.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-3515.pdf

Valorisation des claires ostréicoles - Contrat de Plan IFREMER - Région Poitou-Charentes - Année 1994
Provedor de dados: 5
Autores: Soletchnik, Patrick; Goulletquer, Philippe; Razet, Daniel; Geairon, Philippe; Le Moine, Olivier; Faury, Nicole; Turpin, Vincent; Hamon, R.; Robert, Jean-michel; Hussenot, Jerome; Brossard, Nicolas.
Cette étude constitue une des trois actions engagées dans le cadre du Contrat de Plan IFREMER - Poitou-Charentes (1994-1998) sous l"intitulé Valorisation des Claires Ostréicoles. Les deux actions complémentaires concernent la compréhension et l'amélioration du verdissement des claires sous la direction du Pr. J.M. Robert de l'Université de Nantes/lSOMER et la production de masse de microalgues afin de stimuler la croissance de mollusques filtreurs sous la direction de Dr. J. Hussenot du CREMA L'Houmeau. Ce programme répond directement à la demande des professionnels afin d'optimiser les conditions d'élevage de l'huître creuse C. gigas en période d'affinage qui à l'heure actuelle, ne permettent pas le contrôle de la qualité finale du produit. L'objectif...
Tipo: Text
Palavras-chave: Claires ostréicoles; Affinage; Capacité trophique; Paramètres; Marais expérimental; Culture diatomée; Huître creuse; Crassostrea gigas; Haslea ostrearia.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00044/15541/12918.pdf

Les productions conchylicoles dans leur écosystème : les conditions de la réussite...les menaces à court et moyen terme
Provedor de dados: 5
Autores: Prou, Jean; Piquet, Jean-come; Goulletquer, Philippe; Mongruel, Remi; Ryckaert, Mireille.
La conchyliculture charentaise est une filière enracinée dans les écosystèmes de la Gironde et des Pertuis Charentais. Les interdépendances de la conchyliculture avec les autres usages présents sur ces territoires sont connues, anciennes et doivent être vues dans une perspective historique. Les concepts de biodiversité développés entre autres dans le Millenium Ecosystem Assessment permettent une lecture nouvelle de la place de la conchyliculture dans son environnement. Les différentes composantes de la biodiversité offrent des services écosystémiques qui permettent à l’homme de profiter de la consommation de coquillages. De la pêche pour sa subsistance à la conchyliculture, la consommation de coquillages oblige à une intervention dans les écosystèmes. Dans...
Tipo: Text
Palavras-chave: Conchyliculture; Ecosystème marin; Biodiversité; Nuisance; Cadmium; Algue toxique; Microbiologie.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00014/12567/9435.pdf

Les microalgues des claires ostréicoles de la région de Marennes-Oléron : diversité spécififique, biomasse, répartition spation-temporelle. Dynamique des populations microalgales jusqu'au verdissement des bassins en conditions naturelles et provoquées : événements physico-chimiques et biologiques présidant à la prolifération d'Haslea ostrearia Simonsen
Provedor de dados: 5
Autores: Goulletquer, Philippe; Turpin, Vincent.
Les claires ostréicoles représentent près de 3000ha de marais exploités par la conchyliculture dans le seul Département de Charente-Maritime. Plus de 50000 tonnes sont ainsi affinées puis commercialisées à partir de ce bassin de production, représentant 1/3 de la commercialisation française. Les travaux menés en 1997 portent sur une meilleure connaissance écophysiologique des diatomées des claires ostréicoles dont Haslea ostrearia, ainsi qu'à de meilleures estimations des conditions environnementales naturelles (évolution de la qualité d'eau entre 2 remplissages de marais). En particulier, la variabilité et la répartition au sein des claires des populations phytoplanctoniques ainsi que l'évolution dans le temps de celles-ci ont fait l'objet de recherches....
Tipo: Text
Palavras-chave: Claires ostréicoles; Verdissement; Biomasse; Haslea ostrearia; Bassin de la Charente.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00076/18762/16333.pdf

Growth and survival rates of carpet shell clam (Tapes decussatus Linnaeus, 1758) using various culture methods in Sufa (Homa) Lagoon, Izmir, Turkey
Provedor de dados: 5
Autores: Serdar, Serpil; Lok, Aynur; Kose, Aysun; Yildiz, Harun; Acarli, Sefa; Goulletquer, Philippe.
The carpet shell clam (Tapes decussatus Linnaeus, 1758) is a candidate species for aquaculture development in Turkish waters. Our study aimed to assess the efficiency of three different methods (i.e., net, box and fenced ground) to maximize clam production. Two different net materials (hard plastic net and polyamide net) were tested in the net method trials. Conducted over 1 year between October 2001 and October 2002, an initial calibrated clam population, characterized by a 26.25 ± 0.035 mm shell length and 3.85 ± 0.06 g total wet weight was sampled on a monthly basis to carry out the experiments. By the end of the rearing cycle, clams reached 34.13 ± 0.38 mm and 9.09 ± 0.27 g in shell length and total wet weight, respectively. Significant differences in...
Tipo: Text
Palavras-chave: Survival rate; Growth; Culture method; Sufa lagoon; Clam; Tapes decussatus.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/publication-3111.pdf

REMOULA 2002 - Réseau de Croissance Moule des Pertuis Charentais - Mars 2002 - Mars 2003
Provedor de dados: 5
Autores: Robert, Stephane; Guilpain, Patrice; Grizon, James; Geairon, Philippe; Razet, Daniel; Garen, Pierre; Faury, Nicole; Seugnet, Jean-luc; Soletchnik, Patrick; Le Moine, Olivier; Goulletquer, Philippe; Taillade, Sylvie.
Le réseau de suivi de croissance des moules dans les Pertuis Charentais a 3 ans d 'existence. L'année 2002 n'est pas une bonne année de croissance. Les mesures de gain de poids moyen journalier saisonnier soulignent un fort retard de croissance pour la période printanière (0,35 en 2002 contre 0,38 en 2001 et 0,69 en 2000). Ce manque de croissance n' est pas récupéré en été et reste équivalent à celui de 2001 (0,30). L'automne montre des résultats très variables, à l'avantage de l'élevage sur filières. La mortalité moyenne (20%) enregistrée en décembre 2002, atteint le même niveau qu 'en 2001, nettement supérieur à celui enregistré à la même date en 2000 ( 14%). Deux indices qualités sont proposés comme référence au remplissage du produit destiné à la vente...
Tipo: Text
Palavras-chave: REMOULA; Réseau; Mytilus edulis; Croissance; Mortalité; Production; Qualité; France; Pertuis charentais.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/00072/18365/15937.pdf

Modelling growth and reproduction in the Pacific oyster Crassostrea gigas : 1. What's new with the oyster-DEB model?
Provedor de dados: 5
Autores: Bourles, Yves; Pouvreau, Stephane; Alunno-bruscia, Marianne; Leguay, Didier; Arnaud, Christophe; Goulletquer, Philippe; Kooijman, S. A. L. M.
Tipo: Text
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-3330.pdf

Mortalité hivernale chez la palourde japonaise Ruditapes philippinarum sur le littoral atlantique : aspects biochimique et écophysiologique
Provedor de dados: 5
Autores: Goulletquer, Philippe.
For some years, high mortalities on Manila clam's bredding occured at the end of winter on Atlantic coasts. The ecophysiological survey of population was performed using a ground culture technique. This permitted to characterize the conditions related with mortalities such as a loss in dry weight and a decrease of metabolic reserves. A comparison of biochemical composition was conducted during the occurence of mortality on different sites along the Atlantic coast, and in different ecosystems (tidal land, oysters ponds).
Tipo: Text
Palavras-chave: Tidal bottom; Oyster pond; Glycogen; Ruditapes philippinarum; Mortality; Estran; Claires ostréicoles; Glycogène; Ruditapes philippinarum; Mortalité.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/publication-3019.pdf

Valorisation des claires ostréicoles. Dynamique des populations microalgales et prolifération d'Haslea ostrearia dans l'écoystème "Claires ostréicoles". Projet d'étude.Phase II
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Le Bassin de Marennes-Oléron représente le premier secteur français de commercialisation d'huîtres creuses C. gigas avec 50 à 60 000 tonnes par an dont 25 à 40 000 tonnes produites localement. Cette différence entre la production et la commercialisation est constituée par les apports d'autres bassins de production, lesquels sont affinés ensuite dans les claires de Marennes-Oléron. Environ 3 000 ha de marais salés sont actuellement en exploitation afin de réaliser l'affinage de ces huîtres qui permet la commercialisation du produit sous l'appellation "huîtres de Marennes-Oléron". Cette marque collective, propriété de la structure professionnelle qu'est la Section Régionale de la Conchyliculture de Marennes-Oléron, repose sur la définition de la Norme...
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00406/51781/52379.pdf

Mortalités estivales de l'huître creuse (Crassostrea gigas) dans le bassin de Marennes-Oléron (France). Etude de la variabilité spataile des caractéristiques environnementales de croissance et de production par un Système d'Informations Géographiques (GIS)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Faury, Nicole; Goulletquer, Philippe; Robert, Stephane.
The Marennes-Oléron Bay is the first cupped oyster production site (35,000 tons/year). For more than 10 years, this species has suffered chronic mortality episodes. A research program has been developed since 1994 in association with the professional sector, in order to try and explain these mortalities.
Tipo: Text
Palavras-chave: Production; Croissance; Modélisation; GIS; Système d'Informations Géographique; Crassostrea gigas; Huîtres; Mortalités estivales.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/acte-3377.pdf

Aspects biométriques et biochimiques de la croissance de l'huître Crassostrea virginica en élevage suspendu à Solomons (Baie de Chesapeake)
Provedor de dados: 5
Autores: Goulletquer, Philippe; Prou, Jean; Heral, Maurice.
Growth and proximate biochemical composition of the American oyster Crassostrea virginica were studied in the Patuxent river (Maryland), located in the middle reach of the Chesapeake bay (U.S.A.). The effects of stocking densities and environmental variables (depth, temperature) were examined in 1989-1990 on oyster population by using off-bottom culture. No significant density effect was observed on the shell growth, which is described by using a seasonally oscillating function. In contrast, the meat growth and the proximate biochemical composition were bath affected by the stacking density and the depth location. The variability of the resulting effects was observed based on a seasonal trend. Different hypothesis mainly related tO environmental conditions...
Tipo: Text
Palavras-chave: USA; Chesapeake Bay; Oysters; Growth; Biochemical composition; Crassostrea virginica; Croissance; USA; Chesapeake Bay; Huîtres; Biochimie; Biométrie; Crassotrea virginica.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-3076.pdf

The decline of Chesapeake Bay oyster population : a century of habitat destruction and overfishing
Provedor de dados: 5
Autores: Rotschild, B. J.; Ault, J. S.; Goulletquer, Philippe; Jensen, W. P.; Heral, Maurice.
The  oyster population in the Maryland portion of the Chesapeake Bay has declined b y more than 38-fold since the early part of the century. Although the effects of fishing have been implicated, the decline has been attributed primarily to water quality and recently oyster disease. The decline has also been thought to have affected the biota and chemistry of the Bay. Our analysis provides a quantitative demonstration that the long-term declines are largely the result of habitat loss related to over fishing early in the century, stock over fishing, early in the century' through the recent times. Furthermore, the major ecological effects on Chesapeake Bay occurred well-before World War 1/, before industrialization and the prevalence of disease
Tipo: Text
Palavras-chave: USA; Chesapeake Bay; Prevalence of disease; Industrialization; Diseases; Crassostrea virginica; Oysters.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/1991/acte-3058.pdf

Aquaculture marine et littorale
Provedor de dados: 5
Autores: Sauriau, Pierre-guy; Merceron, Michel; Goulletquer, Philippe.
Marine fish farming is fairly recent in France and it is still in the process of being developed. On the Atlantic and Channel coasts, it deals mainly with Atlantic salmon (Salma salar), fario trout (Salmonella faria) with l,400 t in 1991, and turbot (Scophthalmus maximus) with 600 t. In Gravelmes a bass (Dicentrarchus labrax) and bream (Sparus auratus) farm (1,000 t) uses water which is heated (Mediterranean production for these two species is around 2,000 t). Although these figures are low compared to French shellfish farming (200,000 t) and foreign fish farms (150,000 t in Norway, for example), they are growing.
Tipo: Text
Palavras-chave: Biocénoses; Conchyliculture; Algoculture; Mesure de Protection; Impact non trophiques; Impact; Aquaculture littorale; Aquaculture marine.
Ano: 1997

Rapport d'activité 2002 du Laboratoire Génétique et Pathologie de La Tremblade
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Les principaux objectifs du laboratoire, visent essentiellement à développer des recherches chez les mollusques bivalves marins dans les domaines de : • la pathologie : surveillance des ressources conchylicoles, identification des agents pathogènes, description de leur cycle de développement, mise au point des techniques de reproduction expérimentale des maladies, développement d'outils performants de diagnostic utilisables à des fins de recherche ou de contrôle, étude de l'impact de ces maladies et de leur évolution géographique et temporelle. Et de • la génétique : étude des ressources génétiques, testage de nouvelles espèces, de nouvelles populations et d'hybrides pour limiter les risques liés à la monoculture. Obtention de souches résistantes ou...
Tipo: Text
Palavras-chave: Rapport activité; Génétique; Pathologie; Mollusques; Bivalves.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00074/18554/16105.pdf

Etude des potentialités conchylicoles du Pertuis Breton. Proposition d'étude. Suite aux réunions de la commission de contrôle des filières du 6 juin 1995 et du 10 avril 1996
Provedor de dados: 5
Autores: Goulletquer, Philippe; Heral, Maurice.
Le développement de la mytiliculture dans un bassin conchylicole peut aboutir à la surexploitation du site avec des conséquences néfastes pour les populations en cours d'exploitation. Pour cette raison, il est particulièrement important de développer un plan d'aménagement de bassins tels que le Pertuis Breton considérant l'ensemble des utilisateurs de cet espace. A moyen terme, le développement d'un modèle mathématique est l'outil plus approprié pour tester et valider les différents schémas d'aménagement, permettant ainsi de limiter l'impact sur l'existant. Pour un tel modèle, une parfaite connaissance des caractéristiques biologiques et physico- chimiques du milieu est nécessaire. Au délà de la biomasse en élevage, sa répartition spatiale, ses besoins...
Tipo: Text
Ano: 1996
URL: http://archimer.ifremer.fr/doc/00406/51771/52369.pdf

Impact on non target organisms of anti-marine wood-borer treatments. Evaluation of stress imposed by treatments on organisms form test sites - Final Report
Provedor de dados: 5
Autores: Goulletquer, Philippe; Geairon, Philippe; Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Adessi, L.; Gras, Paul.
Experiments were canied out to assess the copper-chrome-arsenic (CCA) trealment effeets on the Blue mussel Mytilus edulis physiology. Experimental design included two complementary approaches: 1) scope for growth esrimates based upon the energy balance between respiration energy loss and energy gained from feeding processes. 2) a biological early waming system for valve behavior monitoring under CCA exposures. Various temperature range (seasonal effeet). physiological status (mature &amp; immature mussels) as weil as CCA concentrations (from 0 to 48kg/m3) and rime exposure were tested. Significant monality rates for the experimental mussel populations were recorded in alI experimental modalities but the 2kg/m3 CCA treatment concentration. Overall results...
Tipo: Text
Palavras-chave: Bivalvia; Mussel; Mytilus edulis; Copper-Chrome-Arsenic (CCA); Treatment; Feeding; Absorption.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00077/18795/16372.pdf

Rapport 2018 Ifremer. Evolution des lagunes de Saint Pierre et Miquelon. Dynamique de renouvellement des masses d’eaux du Grand Barachois
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Robert, Stephane; Coudray, Sylvain; Fiandrino, Annie; Goraguer, Herle; Goulletquer, Philippe.
La dynamique des masses d'eaux et les flux de transit semble favoriser un comblement et/ou des limitations de renouvellement d'eau mettant en péril la durabilité de l’environnement de cette lagune Miquelonnaise. La Préfecture de Saint Pierre et Miquelon et la DTAM, en soutien à la gestion durable de cet environnement, ont sollicité l’Ifremer pour l’évaluation des flux d’alimentation de cette lagune. Une mission sur place a été réalisée en juin 2016 afin de coordonner les actions et effectuer les mesures préliminaires portant sur les jaugeages, la bathymétrie du chenal et la courantométrie horizontale. Ces données ont ensuite été complétées par une acquisition continue des vitesses de courant, avec des données disponibles du 2 juin au 15 novembre 2016, puis...
Tipo: Text
Palavras-chave: Hydrodynamique; Renouvellements; Saint Pierre et Miquelon; Lagune; Grand Barachois; Hydrodynamic; Renewal rates; Saint Pierre et Miquelon; Lagoon; Grand Barachois.
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00478/58974/61587.pdf

Mortalité hivernale chez la palourde japonaise Ruditapes philippinarum sur le littoral atlantique : aspects biochimique et écophysiologique
Provedor de dados: 5
Autores: Goulletquer, Philippe.
For some years, high mortalities on Manlia clam's breeding occured at the end of winter on Atlantic coasts. The ecophysiological survey of population was performed using a ground culture technique. This permitted to characterize the conditions related with mortalities such as a loss in dry weight and a decrease of metabolic reserves. A comparison of biochemical composition was conducted during the occurence of mortality on different sites along the Atlantic coast, and in different ecosystems (tidal land, oysters ponds).
Tipo: Text
Palavras-chave: Mortalité; Ruditapes philippinarum; Glycogène; Claires ostréicoles; Estran; Mortality; Ruditapes philippinarum; Gycogen; Oyster pond; Tidal bottom.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00134/24517/22546.pdf

Decline of the Chesapeake Bay oyster population : a century of habitat destruction and overfishing
Provedor de dados: 5
Autores: Rothschild, Bj; Ault, Js; Goulletquer, Philippe; Heral, Maurice.
The oyster population in the Maryland portion ot Chesapeake Bay, USA, has declined by more than 50-Iold since the early part of this century. The paper presents evidence that the mechanical destruction of habitat and stock over fishing have been important factors in the decline, even thouqh it is commonly thought that 'water quality' and, more recently, oyster diseases are critical. Quantitative analyses show that the long-term decline 01 oysters largely resuIts from habitat loss associated with intense fishing pressure early in this century and stock over fishing from early in the century throuqh recent limes. Furthermore, the major ecological effects on Chesapeake Bay occurred weIl betore World War II, before industrialization and the reported prevalence...
Tipo: Text
Palavras-chave: OYSTERS; POPULATION DYNAMICS; OVERFISHING.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-3080.pdf

Mortalité de l'huître creuse C. gigas dans le Bassin de Marennes-Oléron. Résultats obtenus sur le site atelier de Ronce-Perquis en 1997-1998
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Faury, Nicole; Razet, Daniel; Geairon, Philippe; Robert, Stephane; Goulletquer, Philippe.
The cupped oyster, Crassostrea gigas was first introduced in France in 1967 [13]. On the Atlantic coast, the Marennes Oléron Bay (Figure 1) is the first European oyster culture basin with a cupped oyster (Crassostrea gigas) stock of 110,000 tons and an annual output of 30,000 to 40,000 tons. The Ronce oyster bank, located at the south of the bay (Figure 1), is made of 1,600 concessions spread out over 175 ha. It produces 8,000 to 10,000 tons of cupped oysters each year. In Japan, Crassostrea gigas has been cultivated for more than 1,000 years (Farley, 1992). Since the beginning of the 1960's, oyster mortality has multiplied throughout the world (Imaï et al., 1965; Sinderman, 1976; Mackin, 1961; Beattie et al, 1980). In the 60's and 70's, Japan and the west...
Tipo: Text
Palavras-chave: Crassostrea gigas; Physiologie; Pontes; Maturation; Croissance; Marennes Oléron; Huîtres; Mortalités.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/rapport-3380.pdf

Développement de l'aquaculture à Saint-Pierre et Miquelon : le cas d'étude de la pectiniculture - approche et méthodologies
Provedor de dados: 5
Autores: Goraguer, Herle; Goulletquer, Philippe; Caisey, Xavier; Lazure, Pascal; Lajournade, M.; Lunven, Michel; Robert, Stephane; Rodriguez, Julien.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00063/17413/14920.pdf

Eutrophication in a tropical pond: Understanding the bacterioplankton and phytoplankton dynamics during a vibriosis outbreak using flow cytometric analyses
Provedor de dados: 5
Autores: Lucas, Ronan; Courties, C.; Herbland, Alain; Goulletquer, Philippe; Marteau, Anne-laure; Lemonnier, Hugues.
In tropical shrimp ponds, the increasing of feed input, concomitantly with the stocking shrimp biomass, induces an eutrophication of the ecosystem. Although difficult to maintain, its stability is required to guarantee the success of the culture. A 110-day period of phytoplankton and bacterioplankton stock and dynamics in an earthen pond (1.2 ha area, 1 m depth) was monitored using flow cytometry to provide baseline information on community characteristics and ecosystem instability. Seven autotrophic cell types were identified over the whole sampling period. Prokaryotic cells included Synechococcus sp., a group named UNK which presented an atypical new flow cytometric signature and picoeukaryotes (PEUK). Nanophytoplankton cells were represented by 4...
Tipo: Text
Palavras-chave: Tropical shrimp aquaculture; Ecosystem shift; Phytoplankton; Bacterioplankton; Vibrio; Flow cytometry.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00029/14068/11312.pdf

De la biodiversité aux biotechnologies bleues : la caractérisation et l'exploitation des ressources marines sont-elles compatibles?
Provedor de dados: 5
Autores: Goulletquer, Philippe.
L’exploitation de la biodiversité marine, notamment via les biotechnologies, offre un réel potentiel de valorisation comme le démontre l'accélération des dépôts de brevets utilisant des substances actives marines. Ce point est renforcé par les particularités uniques de la biodiversité marine. Le défi à l’heure actuelle est de définir les conditions d’exploitation durable dans un contexte de connaissances limitées des écosystèmes concernés. Si les activités actuelles tendent à privilégier la préservation de l’environnement marin, le développement de connaissances et la levée de verrous technologiques permettront probablement à l’avenir d’identifier les ressources d’intérêt puis de les exploiter par des approches industrielles innovantes (e.g.,...
Tipo: Text
Palavras-chave: Biodiversité; Ressources Marines; Biodiversité marine; Biotechnologies; Gestion; Exploitation.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00099/20987/18613.pdf

Physiologie de la maturation et de la ponte chez l'huître creuse Crassostrea gigas - Résultats d'expériences conduites en 1996
Provedor de dados: 5
Autores: Soletchnik, Patrick; Faury, Nicole; Razet, Daniel; Geairon, Philippe; Goulletquer, Philippe.
L'objectif des expérimentations 1996 a consisté à comparer en "instantané" le potentiel de croissance de C. gigas à différents stades de maturité sexuelle, selon une méthodologie ayant déjà fait ses preuves en laboratoire. En accord avec les résultats de 1995, on retrouve une fragilité de C. gigas autour de la période de ponte. En 1996, les principales fonctions physiologiques (respiration, filtration et absorption) sont étudiées sur deux cohortes et pour 4 stades de maturité sexuelle. La "fragilité physiologique" des huîtres porte sur le stade de maturation avancée pour la cohorte 1993 et sur le stade de post-ponte pour la cohorte 1994. La méthodologie de conditionnement a été confirmée par ces expérimentations. Cependant on doit à nouveau noter les...
Tipo: Text
Palavras-chave: Crassostrea gigas; Mortalité; Ecophysiologie; Modèle; Marennes Oléron.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00072/18362/15934.pdf

Hydrobiologie du bassin de Marennes-Oléron. Premiers résultats
Provedor de dados: 5
Autores: Razet, Daniel; Faury, Nicole; Soletchnik, Patrick; Geairon, Philippe; Le Moine, Olivier; Goulletquer, Philippe.
Monitoring hydrology is an essential part of studying an ecosystem such as the Marennes-Oléron Bay. Since 1977, bimonthly samples have been taken from five stations in the bay. These samples provide important information on physical characteristics (temperature, oxygen, salinity), nutrients (NH4, NO3, NO2, SiO3, PO4) and particulate matter composition (seston, chlorophyll a and pheophytin).
Tipo: Text
Palavras-chave: Hydrologie; Marennes Oléron; Hydrobiologie.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-3250.pdf

Perspectives de développement de l'élevage de la palourde japonaise Ruditapes philippinarum dans le bassin ostréicole de Marennes-Oléron
Provedor de dados: 5
Autores: Goulletquer, Philippe; Nedhif, Mohamed; Heral, Maurice.
The complete Manila clam's breeding cycle (Ruditapes philippinarum ) in oysters ponds (claires) permits  to obtain a length of 25 mm after 1 year with a density range of 200 animals/m2 . As the primary production is restricted, the breeding biomass during the second year is limited to 500 g.m2 corresponding to a density between 30 to 50 clams..m-2. For an increase of the production it is necessary to extend the cultivated area to the tida1 bottom of the Bay of Marennes-Oleron. It appears that the man tidal level between + 2 and + 2.5 15 necessary with a density range of 200.m-2 to reach, the market size nine months later. The harvest sould be done before winter time to avoid a large 1055 of the flesh which can cause high levels of mortality.
Tipo: Text
Palavras-chave: Marennes Oleron; Breeding; Clams; Ruditapes philippinarum; Marennes Oléron; Elevage; Palourdes; Ruditapes philippinarum.
Ano: 1986
URL: http://archimer.ifremer.fr/doc/1986/acte-2966.pdf

Alien Species Alert: Ensis directus. Current statuts of invasions by the marine bivalve Ensis directus
Provedor de dados: 5
Autores: Gollasch, Stephan; Kerckhof, Francis; Craeymeersch, Johan; Goulletquer, Philippe; Jensen, Kathe; Jelmert, Anders; Minchin, Dan.
The North American bivalve mollusc Ensis directus (Conrad, 1843) (Bivalvia, Pharidae) is native to the Northwest Atlantic coasts from southern Labrador to northern Florida (Bousfield, 1960; Theroux and Wigley, 1983; Swennen et al., 1985; Abbott and Morris, 2001; Turgeon et al., 2009; Vierna et al., 2013). This species has been introduced outside its native range, with the first confirmed record from the German Bight in 1979 (Cosel et al., 1982). Thereafter, a subsequent secondary range expansion took place, and the species is presently known to occur from Spain to Norway, including the UK (e.g. ühlenhardt - Siegel et al., 1983; Essink, 1985, 1986; Kerckhof and Dumoulin; 1987, Luczak et al., 1993; Rasmussen, 1996; Brattegard and Holthe, 1997; Eno et al.,...
Tipo: Text
Ano: 2015
URL: http://archimer.ifremer.fr/doc/00269/38007/36090.pdf

Les enjeux de la biodiversité marine et côtière...
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Au-delà des espèces emblématiques comme les mammifères marins, les enjeux liés à la biodiversité marine et côtière restent souvent méconnus dans le débat actuel. Pourtant, ces enjeux sont importants tant sur le plan patrimonial, que sur l'exploitation durable des ressources halieutiques, la valorisation biotechnologique, et en matière de connaissances fondamentales. La conférence portera sur ces enjeux et sur la réponse apportée par la recherche, en effectuant un tour d'horizon de la question au niveau français et international ...
Tipo: Text
Palavras-chave: Biotechnologies; Ressources halieutiques; Exploitation durable; Biodiversité côtière; Biodiversité marine.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/acte-3838.pdf

Summer mortality of the Pacific cupped oyster Crassostrea gigas in the Bay of Marennes-Oleron (France). Spatial variability of environmental parameters, growth and production rates using a Geographical Information System (GIS)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Faury, Nicole; Goulletquer, Philippe; Robert, Stephane.
The Marennes-Oleron Bay is the first rearing area in Europe for the cupped oyster, with 35 000 tons proudced on a yearly basis. This species has suffered several chronic summer mortalities for the last 10 years.
Tipo: Text
Palavras-chave: Marennes Oleron Bay; Geogaphical Information System; GIS; Production; Growth; Crassostrea gigas; Oysters; Summer mortality.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/acte-3376.pdf

Impact de la pollution aux hydrocarbures sur l'écophysiologie et la pathologie des bivalves d'intérêt commercial de la Côte Atlantique
Provedor de dados: 5
Autores: Martin, Jean-louis; Haure, Joel; Thebault, Anne; Goulletquer, Philippe.
The evaluation of the ecological and economical consequences of the hydrocarbon pollution of the Erika implies the setting up of monitorings, analysis and experiments in the short, medium and long term. Among the consequences to be evaluated, a great deal of attention has to be paid to the direct impact on the biology and production performances of the main shellfish species as about 30% of the national production (around 130,000 tons of oysters and 60,000 tons of mussels per year) is cultivated in the impacted area. The main difficulty in evaluating the effects of the contaminants on a distinct part of the ecosystem which is mostly dominated by a cultured population dwells in the different approaches to set up as well as the variability of the answers...
Tipo: Text
Palavras-chave: Pathologie; Ecophysiologie; Conchyliculture; Impact; Hydrocarbures; Pollution.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/2003/acte-3308.pdf

Bilan énergétique chez les mollusques bivalves : terminologie et méthodologie - Compte rendu du groupe de travail réuni au laboratoire national "Ecosystème conchylicole" de l'IFREMER La Tremblade (13 et 14 septembre 1984)
Provedor de dados: 5
Autores: Heral, Maurice; Lucas, Albert; Deslous Paoli, Jean-marc; Goulletquer, Philippe; Masse, Henri; LABEIM (Laboratoire de Biologie et d'Ecologie des Invertébrés Marins).
En septembre 1984, MM. HERAL et DESLOUS-PAOLI organisèrent à La Tremblade, une "réunion méthodologie expérimentale mollusques". Cette rencontre faisait suite à un bref état qui s'était engagé au Congrès de Montpellier sur les "Bases biologiques de l'Aquaculture", où il était apparu que la terminologie et la méthodologie concernant le métabolisme des bivalves devaient être clarifiées. Grâce à une large information auprès des spécialistes français de la physiologie des bivalves, la réunion à La Tremblade a réuni un grand nombre de participants très motivés. Pendant 2 jours des discussions très animées ont permis de bien comprendre les échanges entre les bivalves et leur environnement et d'y jeter un regard neuf, ce qui impliquait une analyse critique du...
Tipo: Text
Palavras-chave: Terminologie; Méthodologie; Bilan d'énergie; Physiologie; Bivalve; Terminology; Methodology; Energy budget; Physiology; Bivalve molluscs.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00014/12562/9432.pdf

Mussel (Mytilus edulis) culture management along the Normandy coastline (France) : stock assessment and growth monitoring
Provedor de dados: 5
Autores: Goulletquer, Philippe; Joly, Jean-pierre; Le Gagneur, Eric; Ruelle, Francois.
The Normandy region is presently a leading shellfish rearing area in France yielding 35,000 metric tons of oysters C. gigas and Il,000 metric tons of mussels M. edulis on a yearly basis. Preliminary studies were initiated in 1989, 1991 and 1992 to develop the sampling strategy for cultured mussel stock assessment. Comprehensive mussel stock assessment and concomitant growth monitoring were carried out in 1993 to study mussel population and optimize overall s1l1ellfish culture management.  A three-stage cluster sampling strategy combined with stratification was tested on the 278 kms 'bouchot' type culture with a sampling effort of 275 units. Stratification was based upon two criteria including geographical sector and tidal level. Overall biomass was...
Tipo: Text
Palavras-chave: Model; Growth monitoring; Stock assessment; Mytilus edulis; Blue mussel; Modèle; Suivi de croissance; Estimation de stocks; Mytilus edulis L.; Moule bleue.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/acte-3073.pdf

Rapport d'activité 2001 du Laboratoire Conchylicole de Poitou-Charentes de La Tremblade
Provedor de dados: 5
Autores: Le Moine, Olivier; Goulletquer, Philippe.
La compétence géographique assurée par le laboratoire dans ses fonctions concerne l'ensemble des Pertuis Charentais depuis le Sud-Vendée jusqu'à l'embouchure de la Gironde. Ce rapport d'activité tient compte de ces faits et présente par ailleurs les programmes de recherche selon la nomenclature établie dans le cadre du Plan Stratégique de l'Ifremer et dans la définition des mandats de laboratoires.
Tipo: Text
Palavras-chave: Rapport activité; Réseaux surveillance; Ecosystème conchylicole; Production aquacole; Marennes Oléron.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00074/18551/16102.pdf

History, Status, and Future of Oyster Culture in France
Provedor de dados: 5
Autores: Buestel, Dominique; Ropert, Michel; Prou, Jean; Goulletquer, Philippe.
The history of French oyster culture consists of a succession of developmental phases using different species, followed by collapses caused by diseases. The indigenous species Ostrea edulis was replaced first with Crassostrea angulata, then C. gigas. France is now the top producer and consumer of oysters in Europe, producing around 120,000 t of the cupped oyster C. gigas annually, and an additional 1500 t of the flat oyster O. edulis. Cupped oysters are produced all along the French coast from natural and hatchery spat. Various structures are used to collect spat from the wild. After a growing-on period, oysters are Cultivated by three main methods: (1) on-bottom culture in the intertidal zone or in deep water, (2) off-bottom culture in plastic mesh bags...
Tipo: Text
Palavras-chave: Cupped oyster; Flat oyster; Ostrea edulis; Crassostrea gigas; French production; Aquaculture.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-7396.pdf

Decline of oyster production in the Maryland portion of the Chesapeake Bay: Causes and perspectives
Provedor de dados: 5
Autores: Heral, Maurice; Rothschild, Brian J .; Goulletquer, Philippe.
The historical landings of the oyster production are described for the Maryland part of the Chesapeake Bay. The different trends are analysed concurently with the main events and management strategies which occured on the bay. Three main periods are identified : - the greatest fishery from 1840 to 1890 with a large overfishing and the destruction of the oyster habitat caused by the oyster gears, - the decrease and stable landings from 1900 to 1980 due to the failure of the reseeding plan connected to the heavy sedimentation and the anoxic summer conditions, - the large decrease of the production (1981-1988) caused by high mortalities related to diseases (MSX and Perkinsus marinus) prédation and management practices. Alternative strategies for restoration...
Tipo: Text
Ano: 1990
URL: http://archimer.ifremer.fr/doc/1990/acte-2393.pdf

Ecophysiological study on the Pacific oyster Crassostrea gigas naturally infected by a Chlamydia-like microorganism : effect of infection level and diet on oyster physiological responses
Provedor de dados: 5
Autores: Soletchnik, Patrick; Goulletquer, Philippe; Cochennec, Nathalie; Renault, Tristan; Geairon, Philippe.
A population of Pacific ovsters, Crassostrea gigas, infected with a Chlamydia-like procaryote was reared to compare infection trends under three different feeding conditions: a starved condition, an  intermediate condition with a diet of Skeletonema costatllm, and a mixed algal diet. Several physiological and pathological criteriJ: presence of gill abnormality; microscopic examination, basophilic intracytoplasmic inclusions, Feulgen reaction; condition index, filtration, food consumptiQn; fecal production and respiration were used to compare the various modalities one month after the initiation of the experiment. The Irodality of starved oysters showed reduce physiological performances in terms of scope for growth and condition index compared to oysters...
Tipo: Text
Palavras-chave: Pathogen; Chlamydia; Procaryote; Crassostrea gigas; Oyster; Ecophysiology; Pathogène; Chlamydia; Procaryote; Crassostrea gigas; Huître; Ecophysiologie.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/publication-2741.pdf

Evaluation of oyster sampling efficiency of patent tongs and an oyster dredge
Provedor de dados: 5
Autores: Chai, Ai-ling; Homer, Mark; Tsai, Chu-fa; Goulletquer, Philippe.
Sampling efficiency of two oyster fishing gears, patent tongs and an oyster dredge, were compared in reference to diver-harvested quadrats in Chesapeake Bay, which supports important harvests of eastern oyster Crassosrrea virginica. Mean densities of spat (0$35 mm), small oysters (&gt;35 mm to 75 mm), marketable oysters (&gt;75 mm), and all oysters (three size-groups combined) estimated from patent tong samples were not significantly different from those derived from diver-harvested quadrat samples. In contrast, the densities estimated from dredge samples were low, only 2-32% of the diver estimates. Accordingly, patent tongs are recommended as the sampling gear for estimating eastern oyster stock abundance in the Maryland portion of Chesapeake Bay.
Tipo: Text
Palavras-chave: Chesapeke Bay; Sampling efficiencies; Crassostrea virgnica; Oysters.
Ano: 1992
URL: http://archimer.ifremer.fr/doc/1992/publication-3065.pdf

Rapport sur la situation zoosanitaire du cheptel Crassostrea gigas : cas du bassin de Marennes-Oléron
Provedor de dados: 5
Autores: Grizel, Henri; Renault, Tristan; Cochennec, Nathalie; Tige, Gilbert; Audic, Guylaine; Pichot, Yves; Chollet, Bruno; Goulletquer, Philippe; Soletchnik, Patrick; Geairon, Philippe; Prou, Jean.
Le cheptel d'huîtres creuses, Crassostrea gigas, du Bassin de Marennes-Oléron a subi ces dernières années des morta lités (mai 88, mai 91, été 1992 et hiver 92-93). Les examens histopathologiques pratiqués durant celles-ci n'ont pas permis de déceler d'agents pathogènes. Les causes avaient été attribuées essentiellement, pour les premiers cas, à un manque de nourriture corrélé avec des conditions de sécheresse (donc un manque d'apport d'eau douce pour le bassin) et à des surcharges trop importantes des biomasses de fiItreurs, huîtres y compris. L'explication du dernier cas de mortalité survenue au cours de l'hiver serait d'un autre ordre: l'abaissement brutal des salinités, notamment dans les claires où étaient épurées soit des huîtres natives fragilisées,...
Tipo: Text
Palavras-chave: Etude zoosanitaire; Mortalité; Epidémiologie; Pathologie; Marennes Oléron.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00050/16152/13635.pdf

Comparative analysis of oxygen consumption rates between cupped oyster spat of Crassostrea gigas of French, Japanese, Spanish and Taiwanese origins
Provedor de dados: 5
Autores: Goulletquer, Philippe; Wolowicz, Maciej; Latala, Adam; Geairon, Philippe; Huvet, Arnaud; Boudry, Pierre.
Respiration rates of various geographical strains of Crassostrea gigas were compared to assess the respiratory expenditure as a physiological indicator of catabolism (cost of maintenance). Parental oysters, sampled in France (Marennes-Oleron), Japan (Hiroshima), Taiwan (Tunkang) and Spain (Cadix), were differentiated by both their geographic origin and by mitochondrial DNA markers, allowing the distinction between the two closely related taxa Crassostrea gigas and Crassostrea angulata. After reproduction of these parental oysters, respiration rates of spat of each strain, reared under common controlled conditions, were individually estimated at 20 degrees C by using a volumetric microrespirometer. Our results demonstrated that physiological variability...
Tipo: Text
Palavras-chave: Pacific Ocean; NE Atlantic; Oyster strains; Hybrids; Crassostrea angulata; Crassostrea gigas; Metabolism; Respiration rates; Océan Pacifique; Atlantique NE; Souches génétiques; Hybrides; Crassostrea angulata; Crassostrea gigas; Métabolisme; Taux de respiration.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/publication-859.pdf

Rapport d'activité 1999 du Laboratoire Conchylicole de Poitou-Charentes de La Tremblade
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Rapport d'activité 1999 du Laboratoire Conchylicole de Poitou-Charentes de La Tremblade.
Tipo: Text
Palavras-chave: Aquaculture; Conchyliculture; Physiologie; Réseau surveillance; Invertébrés marins; Rapport activité.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00071/18263/15826.pdf

Déterminisme des mortalités estivales d'huîtres creuses Crassostrea gigas dans le bassin de Marennes-Oléron : choix d'un site atelier pilote, prééchantillonnage et perspectives
Provedor de dados: 5
Autores: Le Moine, Olivier; Soletchnik, Patrick; Geairon, Philippe; Razet, Daniel; Faury, Nicole; Goulletquer, Philippe.
Since 1988, seasonal, chronic mortality (up to 30-40 %) has been occurring at oyster farms in the Marennes-Oléron Bay, namely at the Ronce and Perquis sand flats. The particular geographic position on the southern part of the bay, between the Seudre River and the Maumusson Strait, confers a relative specificity to these oyster farming areas. Production in this area is on the order of 8,000 to 10,000 t of the 30,000 t of oysters produced annually in the Bay. Although limited in surface area (180 ha out of a total of 4,500 ha), this high proportion of production can be attributed to the fact that this zone is mostly dedicated to the finishing process before commercialisation. Due to its economic importance, oyster farming is vital for local businesses.
Tipo: Text
Palavras-chave: Marennes Oléron; Mortalités; Crassostrea gigas.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-3249.pdf

Comparaison des relations trophiques de Ruditapes philippinarum en milieux estuarien et océanique à partir d'un modèle de croissance
Provedor de dados: 5
Autores: Bacher, Cedric; Goulletquer, Philippe.
A comparison of trophic relationships for Ruditapes philippinarum in estuarine and oceanic areas: the use of a growth mode!. Trophic relationships in Ruditapes philippinarum were studied in estuarine and oceanic areas of Marennes-Oleron during 1985 and 1986. Principal components analysis (P.C.A.) was used to reveal the fluctuations of the descriptors from the principal axes. Changes in dry weight were predicted in each area through an allometric growth model and were related to the principal axes derived from the P.C.A. The results of the model were used to compare the growth in each area and to point out the descriptors responsible for the discrepancies, such as autumnal blooms or silt resuspension. Attention was paid to the sampling strategy related to...
Tipo: Text
Ano: 1989
URL: http://archimer.ifremer.fr/doc/1989/publication-2884.pdf

Center for Independent Experts (CIE) Review of the Status of the Eastern Oyster (Crassostrea virginica)
Provedor de dados: 5
Autores: Goulletquer, Philippe.
NOAA’s National Marine Fisheries Services (NMFS) received a petition to list the Eastern oyster (Crassostrea virginica) as either threatened or endangered under the Endangered Species Act (ESA). The Eastern oyster is an emblematic species in the US coastal states, playing a significant role at various levels: shaping coastal social communities, providing a commercial activity (public fishery &amp; aquaculture) and recreational - amenity benefits, and as a keystone species in highly diverse and sensitive ecosystems (estuaries). This petition is likely the result of concerns regarding the partial collapse of public fisheries in several states as well as from the resulting damages to this species induced by severe hurricanes. A Biological Review Team (BRT)...
Tipo: Text
Palavras-chave: Biology; Habitat threats; Predation; Disease; Bivalvia; Crassostrea virginica; Oyster; Recommendations.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/00043/15458/12833.pdf

Development of a generic decision-support tool for identifying potentially invasive aquatic taxa: AS-ISK
Provedor de dados: 5
Autores: Copp, Gordon H.; Vilizzi, Lorenzo; Tidbury, Hannah; Stebbing, Paul D.; Trakan, Ali Serham; Miossec, Laurence; Goulletquer, Philippe.
Electronic decision-support tools are now an essential component of government strate gies to battle non-native species, with taxon-specific, paper-based risk analysis schemes often being replaced by taxon-generic tools. This study reports on the development of a decision-support tool for aquatic species, the Aquatic Species Invasiveness Screening Kit (AS-ISK), which replaces five taxon-specific toolkits for amphibians, freshwater and marine fish and invertebrates (FISK, MFISK, FI-ISK, MI-ISK, Amph-ISK). Adapted from Pheloung et al.’s. Weed Risk Assessment (WRA), the “-ISK” toolkits were also “self-automated workbooks” in Excel® VisualBasic® architecture of the ’WRA. In creating AS-ISK, we incorporated the conceptual approach (questions and guidance) of...
Tipo: Text
Palavras-chave: Risk analusis; Marine; Brackish; FISK; Ruditapes philippinarum.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00357/46770/46638.pdf

Réseau de surveillance de la croissance et production de l'huître creuse Crassostrea gigas dans le bassin de Marennes-Oléron : bilan de 12 années de suivi (1986-1998)
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Soletchnik, Patrick; Faury, Nicole; Goulletquer, Philippe; Robert, Stephane; Razet, Daniel; Heurtebise, Serge.
Thiis report aims to study the oyster Crwsosrrea gigas growth and production over a 12 years time' s span in the bay of Marennes-DIeron. Results of 12 years of oyster growlh did not show any significant oyster biological productivity decrease, nor trend. ln contrast, annual growth showed a large variability, which will be correlated with environmental conditions. Moreover, annual growth variability was greater than the variability due to site location,. besides the Ronce experimental site. The later, located in the south west part of the bay of Marennes-Dleron, has been the leading oyster growth site since 1989. The annual shell growlh variabiliry was greater than oyster dry meat weight fluctuation . Both 1990 and 1991 years were characterized by the...
Tipo: Text
Palavras-chave: Réseau de surveillance; Croissance; Composition biochimique; Mortalité; Crassostrea gigas; Bassin de Marennes-Oléron; Charente-Maritime; Monitoring network; Growth; Biochemical composition; Mortality rate; Crassostrea gigas; Bay of Marennes Oleron; Charente-Maritime.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00031/14244/11520.pdf

Optimisation de l'affinage de l'huître creuse Crassostrea gigas dans les claires ostréicoles du Bassin de Marennes-Oléron : capacité trophique de l'écosystème "claires". Effet d'une complémentation alimentaire en algues "fourrage" sur l'affinage. Ressource trophique et potentiel de croissance. Année 1996
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Geairon, Philippe; Razet, Daniel; Goulletquer, Philippe; Faury, Nicole; Fouche, Dominique; Gras, Paul.
Traditionnellement pratiqué dans les marais maritimes autour du bassin de Marennes Oléron, l'affinage des huîtres en claires est destiné à améliorer leur qualité tant d'un point de vue organoleptique et engraissement que du durcissement des animaux. Le but recherché est d'obtenir un gain de poids de chair, une augmentation des réserves glucidiques, une saveur particulière, et un renforcement de la coquille. La claire ostréicole constitue par ailleurs une zone de stockage privilégiée du cheptel avant la commercialisation de la production au cours de la deuxième quinzaine du mois de décembre. Le savoir faire empirique des professionnels ne permet pas de pallier la variabilité importante des caractéristiques de ces élevages, assujettis aux variations...
Tipo: Text
Palavras-chave: Claires ostréicoles; Huîtres creuses; Crassostrea gigas; Affunage; Zootechnie; Production phytoplanctonique; Ressources trophiques; Marennes Oléron.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00199/31007/29410.pdf

Gestion durable des activités en marais et en zones littorales. Rapport intermédiaire : cartographie des usages du marais
Provedor de dados: 5
Autores: Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Goulletquer, Philippe.
La gestion durable de la zone côtière et des marais charentais constitue un enjeu essentiel sur le plan régional compte tenu de la pression anthropique croissante sur ces zones et des conflits d'usage émergeants. L'augmentation de l'activité touristique et de loisirs a favorisé l'émergence de groupes sociaux représentatifs d' activités diverses (e.g., nautisme, chasse à la tonne, pêche à pied, associations de protection de la nature) qui imposent une nouvelle approche de la gestion de ces zones. Les conflits d'usage des eaux douces, entre l'agriculture, l'urbanisation et les besoins industriels deviennent un enjeu essentiel dans le choix d'aménagement. Les difficultés d' élaboration du dernier Schéma de Mise en Valeur de la Mer des Pertuis Charentais par...
Tipo: Text
Palavras-chave: Zone côtiere; Marais charentais; SIG; Système Information Géographique; Méthodologie; Marennes Oléron; Pertuis Charentais.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00077/18792/16368.pdf

Emergence of biodiversity research and main progress from Ifremer
Provedor de dados: 5
Autores: Desbruyeres, Daniel; Goulletquer, Philippe.
Research needs and interests on biodiversity have drastically increased since the Rio Conference (1992). The main conclusions from the Millennium Ecosystem Assessment (MEA, 2001) carried out by the UN and the demonstration of the critical role of biodiversity in maintaining ecosystems services have strengthened research interests on biodiversity. Moreover, the systemic approach generalization, complex system modeling, confluence of thematic prompting new scientific concepts, and multi-scalar – multifunctional approach have induced significant changes to the scientific context. A review of major advances on biodiversity monitoring and research resulting from Ifremer programs will be presented considering deep sea as well as coastal ecosystems and associated...
Tipo: Text
Palavras-chave: Modelisation; Operational monitoring; Benthic habitat mapping; Ecosystem; Research; Marine biodiversity; Modélisation; Surveillance opérationnelle; Cartographie; Ecosystèmes; Recherche; Biodiversité marine.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/acte-6829.pdf

Apport d'un programme de génétique à une filière de production aquacole : l'exemple de l'ostréiculture
Provedor de dados: 5
Autores: Lapegue, Sylvie; Bedier, Edouard; Goyard, Emmanuel; Degremont, Lionel; Baud, Jean-pierre; Gerard, Andre; Goulletquer, Philippe; Boudry, Pierre.
Two oyster species are currently present along the French coasts : the indigenous European flat oyster (Ostrea edulis), and the Pacific cupped oyster (Crassostrea gigas), that has been introduced from Japan since the beginning of the 70ies. The flat oyster successively suffered from two protozoan diseases during the 60ies and its production decreased from 20 000 tons/year by that time to 1 500 tons/year nowadays. Consequently, the oyster production is principally (99%) based upon the Pacific oyster species with approximately 150 000 tons/year among which 90% are grown from the natural spat. However, the hatchery production of this species is developing and was estimated to 400 to 800 millions spat in 2002. Moreover, strengthened relationships between...
Tipo: Text
Palavras-chave: Growth; Selection; Genetic breeding; Genetic; Ostrea edulis; Crassostrea gigas; Oysters; Croissance; Sélection; Amélioration génétique; Génétique; Ostrea edulis; Crassostrea gigas; Huîtres.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2003/acte-3491.pdf

Liste des espèces marines introduites dans les eaux bretonnes et des espèces introduites envahissantes des eaux périphériques
Provedor de dados: 5
Autores: Blanchard, Michel; Goulletquer, Philippe; Hamon, Dominique; Le Mao, Patrick; Nezan, Elizabeth; Gentil, Franck; Simon, Nathalie; Viard, Frédérique; Ar Gall, Erwan; Grall, Jacques; Hily, Christian; Le Duff, Michel; Stiger-pouvreau, Valérie; Acou, Anthony; Derrien-courtel, Sandrine; Feunteun, Eric; D'Hondt, Jean-loup; Canard, Alain; Ysnel, Frédéric; Perrin, Bertrand.
Tipo: Text
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00026/13737/10865.pdf

Blue fishing and aquaculture: threats, obstacles and opportunities
Provedor de dados: 5
Autores: Goulletquer, Philippe.
On estime à l'heure actuelle que la consommation de poisson par habitant devrait doubler d'ici à 2030, comme elle l'a fait entre 1973 et 2003. Que devons-nous faire pour mieux préserver (voire accroître) les réserves de poisson, qui sont en diminution constante ? Qu'en est-il de l'aquaculture ? Peut-elle répondre à cette demande croissante, et si oui quel en sera l'impact environnemental ? Comment les pays pauvres peuvent-ils en particulier exiger des sociétés qui la pratiquent de prendre en charge les frais supplémentaires liés à une production d'aquaculture durable ?
Tipo: Text
Palavras-chave: Biodiversiy; Ecosystem; Aquaculture; Fisheries.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/acte-6210.pdf

Rapport d'activité 1995 du Laboratoire Génétique, Aquaculture et Pathologie de La Tremblade - Bouin
Provedor de dados: 5
Autores: Gerard, Andre; Goulletquer, Philippe; Baud, Jean-pierre; Renault, Tristan.
Rapport d'activité 1995 du GAP (Laboratoire Génétique, Aquaculture, Pathologie) de La Tremblade.
Tipo: Text
Palavras-chave: Pathologie; Génétique; Aquaculture; Invertebres marins; Physiologie; Rapport activités.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00071/18253/15816.pdf

Croissance et reproduction de Ruditapes philippinarum (Adams &amp; Reeve 1850) en fonction des conditions d'élevage (milieu lagunaire et claire)
Provedor de dados: 5
Autores: Goulletquer, Philippe.
For a few years, we have witnessed the rapid development of Japanese clam Ruditapes philippinarum (Adams &amp; Reeve) culture on the Atlantic coast, and especially in the Charente Maritime region. However, a number of unknown variables still exist in order to optimize oyster farms and improve their benefits. In this respect, studies have been carried out since 1975 by the Centre Océanologique de Bretagne in Tudy Island, in the Kermoor pond, in order to determine: the consequence of the immersion size on their growth, the optimal seeding period, and the survival rate. Moreover, other studies aimed to significantly reduce the production cost, focused on pre-growth length. These studies correspond to a specific environment (i.e. the semi-closed Kermoor pond)....
Tipo: Text
Palavras-chave: Maturation sexuelle; Cycle gamétogénétique; Biométrie; Croissance; Ruditapes philippinarum; Palourdes.
Ano: 1983
URL: http://archimer.ifremer.fr/doc/1983/rapport-3843.PDF

Caractérisation sur estran des performances de croissance, maturation et survie des deux-taxons d'huîtres creuses C. gigas et C. angulata, hybrides et "exotiques"
Provedor de dados: 5
Autores: Soletchnik, Patrick; Huvet, Arnaud; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Goulletquer, Philippe; Faury, Nicole.
This study presents the zootechnical performances in their natural habitat, the Marennes Oléron Bay, of two Crassostrea gigas and Crassostrea angulata taxons of European and Asian origin, as well as those of their "European" hybrids (6 studied strains). Growth performance seems to be a phenotypic characterisation linked with the maternal origin (c. gigas or C. angulata). The Asian "pure gigas" or "pure angulata" strains' growth performances differ more from those of their European "sisters" than the European taxons with their hybrids. The C. angulata strain, of Taiwanese origin, does not survive the second culture week in the Marennes Oléron Bay. The C. angulata strain seems to "carry" a strong mortality potential. After 6 months of off-bottom culture, the...
Tipo: Text
Palavras-chave: Survie; Performance croissance; Hybrides; Zootechnie; Crassostrea angulata; Crassostrea gigas; Huîtres.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/acte-3382.pdf

Hydrologie du bassin de Marennes- Oléron. Analyse de la base de données "RAZLEC" 1977- 1995
Provedor de dados: 5
Autores: Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Goulletquer, Philippe; Ratiskol, Jacqueline; Garnier, Jacqueline.
An hydrobiological monitoring survey has been carried out in the Bay of Marennes-Oléron since 1977. Five stations, distributed over the Bay, were sam pied twice a month. Spatial and temporal trends of the physical characteristics (i.e., seawater, temperature, salinity, dissolved oxygen and suspended matter), nutrients (azote, nitrite, nitrate, silicate) and organic variables (chlorophyll a and pheopigments) were assessed by using a statistical time-series analysis mode\. It was used to distinguish seasonal variability from long term trends. Pluviometric data as weil as the Charente River fluxes were similary analyzed by the model. The seasonal variability showed an homogeneous pattern over the five stations for all parameters, but the site-dependent...
Tipo: Text
Palavras-chave: Shellfish farming; Overall trends; Seawater seasonal variability; Marennes Oleron Bay; Hydrology; Conchyliculture; Tendances; Variations saisonnières; Marennes Oléron; Hydrologie.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/rapport-6379.pdf

Biological, socio-economic, and administrative opportunities and challenges to moving aquaculture offshore for small French oyster-farming companies
Provedor de dados: 5
Autores: Barillé, Laurent; Bris, Anthony Le; Goulletquer, Philippe; Thomas, Yoann; Glize, Philippe; Kane, Frank; Falconer, Lynne; Guillotreau, Patrice; Trouillet, Brice; Palmer, Stéphanie; Gernez, Pierre.
Oyster production has historically taken place in intertidal zones, and shellfish farms already occupy large extents of the French intertidal space. The expansion of French shellfish aquaculture within intertidal areas is therefore spatially limited, and moving production to the subtidal offshore environment is considered to be a possible solution to this problem. Finding new sites along the French Atlantic coast was studied here from the perspective of small oyster companies run by young farmers, who are interested in offshore bivalve aquaculture expansion compatible with their investment capacity. In assessing the feasibility of such offshore production, we considered three main issues: (1) bivalve growth potential and (2) technical feasibility and...
Tipo: Text
Palavras-chave: Pacific oyster; Site selection; Off-shore aquaculture; Remote sensing; Dynamic energy budget (DEB) model.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00606/71819/70593.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

Influence du temps d'immersion sur l'activité reproductrice et sur la croissance de la palourde japonaise Ruditapes philippinarum et l'huître japonaise Crassostrea gigas
Provedor de dados: 5
Autores: Goulletquer, Philippe; Lombas, Ines; Prou, Jean.
Pour étudier l'influence du temps d'immersion sur deux espèces cultivées, la palourde japonaise Ruditapes philippinarum et l'huître japonaise Crassostrea gigas, un suivi saisonnier de croissance est réalisé à 3 niveaux d'émersion (12%, 29% et 46%) sur l'estran du bassin de Marennes-Oléron. Des différences interspécifiques apparaissent : une prise de poids de coquille hivernale chez Crassostrea gigas, un arrêt étant observé en période automnale pour Ruditapes philippinarum. Par ailleurs l'émission des gamètes est plus précoce (août) et proportionnellement plus importante pour Crassostrea gigas que pour Ruditapes philippinarum (septembre). Les performances de croissance, la prise de poids ainsi que la distribution des populations des deux espèces sont...
Tipo: Text
Palavras-chave: Effort de reproduction; Temps d'immersion; Ruditapes philippinarum; Crassostrea gigas; Reproductive effort; Immersion time; Ruditapes phi Lippinarum; Crassostrea gigas.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/00112/22374/20054.pdf

History and economic consequences of species invasions on Atlantic coast: "good" &amp; "bad" examples
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Species invasion is considered as a main factor impacting the marine biodiversity (CBD, 2008). A comprehensive review of species invasion along the French Atlantic coastline is carried out to assess the present status and side effects resulting from those invasions. Vectors of introduction concerning voluntarily and involuntarily, legal &amp; illegal case studies are reviewed to provide baseline information relating invasion success and potential control. Historical case studies regarding shellfish aquaculture-fisheries development and impacts of exotic diseases (e.g., Bonamia ostreae) as well as hitchhikers (e.g., Rapana venosa) are discussed.  Among at least 150 reported exotic species, around 10 species have highly significant side-effects on the...
Tipo: Text
Palavras-chave: Rapana venosa; Bonamia ostreae; Ruditapes philippinarum; Crepidula fornicata; Crasssostrea gigas; Species invasion; Marine biodiversity.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/acte-6828.pdf

Alien species alert: Crassostrea gigas (Pacific oyster)
Provedor de dados: 5
Autores: Miossec, Laurence; Le Deuff, Rose-marie; Goulletquer, Philippe.
The Pacific oyster (Crassostrea gigas, Thunberg, 1793) is one of 20 species in the genus Crassostrea. Although native to the Japan/Korea region, C. gigas is a hardy species that has been introduced to a number of countries worldwide, including the US, Canada, the UK, France, Korea, China, New Zealand, Australia, South Africa, and South America, mainly for aquaculture purposes (Mann et al., 1991; Orensanz et al., 2002). As a result, C. gigas has become the leading species in world shellfish culture, with an estimated production of 4.6 million t in 2006 (FAO, 2008). Because C. gigas does not require additional food to sustain its growth, this species is relatively inexpensive and easy to produce. Its capacity to adapt to various environmental conditions and...
Tipo: Text
Palavras-chave: Transfer; Alien species; Distribution; Introduction; Bivalvia; Crassostrea gigas; Pacific oyster.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/rapport-6945.pdf

Asari clam (Ruditapes philippinarum) in France: history of an exotic species 1972 – 2015
Provedor de dados: 5
Autores: De Montaudouin, Xavier; Arzul, Isabelle; Caill-milly, Nathalie; Khayati, Alice; Labrousse, Jean-michel; Lafitte, Céline; Paillard, Christine; Soudant, Philippe; Goulletquer, Philippe.
In 1972, France underwent an oyster (Crassostrea angulata) crisis and urgently needed to diversify its aquaculture. Thus, Asari clam (Ruditapes philippinarum) was introduced at that time for aquaculture purpose, concomitantly with the introduction of Pacific oyster (Crassostrea gigas). All Asari clam adults and spat originated from the same area (Puget Sound, WA, USA). After a promising start and the implementation of a national Research &amp; Development program, Asari clam culture rapidly faced a series of concomitant handicaps: firstly, in spite the fact that cultural practices were optimized and locking points addressed, leasing ground availability was limited during the 1980s’ due to certain reluctance from oyster farmers to share their leases and/or...
Tipo: Text
Palavras-chave: Ruditapes philippinarum; France; Aquaculture; Professional fishing; Diseases; Environmental stressors.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00366/47767/47817.pdf

Monitoring of sea scallops Placopecten magellanicus in bottom seeding trials using video in Miquelon bay, Saint Pierre et Miquelon, France
Provedor de dados: 5
Autores: Robert, Stephane; Le Moine, Olivier; Lunven, Michel; Caisey, Xavier; Gaffet, Jean-dominique; Le Gall, Erwan; Vasquez, Mickael; Rodriguez, Julien; Detcheverry, Sebastien; Goulletquer, Philippe.
Placopecten magellanicus production in Saint Pierre et Miquelon (NW North Atlantic) has been developed through direct seeding of juveniles on leased areas. However, most of the culture occurs in deep water ranging from 30 to 70 meters, which requires a monitoring by video to facilitate the grow-out and survival evaluation. In August 2008, a submersible leaded structure was connected by a video cable to the surface and observation screen was defined through the video, an altimeter and two lasers. The pictures were recorded on board on hard drive and digital video recorder DVCAM, and data were georeferenced by VIDEONAV software. Analysing the video tapes allows to establish a thematic database on the ground structure, presence or absence of seeded and wild...
Tipo: Text
Palavras-chave: Scallops; Placopecten magellanicus; GIS; Monitoring; Miquelon Bay.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/00134/24544/22576.pdf

Shellfish farming and coastal zone management (CZM) development in the Marennes-Oleron Bay and Charentais Sounds (Charente Maritime, France): A review of recent developments
Provedor de dados: 5
Autores: Goulletquer, Philippe; Le Moine, Olivier.
France is currently one of the leading shellfish production countries in Europe, harvesting more than 150,000 metric tons of the Pacific cupped oyster (Crassostrea gigas) and 60,000 tons of mussels (Mytilus edulis and M. galloprocincialis) each year. Among rearing areas, the Charentais Sounds and the Marennes-Oleron Bay rank first in Europe, with an annual production of 40,000 and 15,000 tons of oysters and mussels respectively. More than a third of French production is marketed from the Marennes-Oleron area. As natural C. gigas and M. edulis spatfall is limited to the Atlantic coast, the Marennes-Oleron Bay and the Charentais Sounds play a critical role nationally, representing more than half of French oyster and mussel spat production. The stocking...
Tipo: Text
Palavras-chave: Stepwise model of agreement; Environment aquaculture management; Conservation; Coastal zone management; Charentais Sounds; Bay of Marennes Oleron.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-481.pdf

Shellfish culture in France : present status and new approaches to optimise production
Provedor de dados: 5
Autores: Goulletquer, Philippe.
France is presently one of the leading countries in Europe for shellfish production with 152,000 metric tonnes of the Pacific cupped oyster C. gigas, 2,500 tonnes of flat oyster O. edulis, and more than 60,000 tonnes of mussels M. edulis and  M. galloprovincialis. Moreover, species like the pearl oyster Pinctada margaritifera in French Polynesia, and on the Atlantic coastline the scallop Pecten maximus and the Manila clam Tapes philippinarum contribute significantly to the overall landings. .  Since traditional rearing areas are now almost overloaded, new management practices are currently under review to optimise and develop shellfish culture. Besides the products resulting from genetic research (e.g. triploids, tetraploids and disease resistant strains),...
Tipo: Text
Palavras-chave: Coastal management; Development; Research; Traditional osyter ponds; Semi intensive technique; Shellfish industry.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/acte-3094.pdf

Evolution saisonnière de la filtration de bivalves intertidaux dans des conditions naturelles
Provedor de dados: 5
Autores: Deslous-paoli, Jean-marc; Heral, Maurice; Goulletquer, Philippe; Boromthanarat, Wilaiwan; Razet, Daniel; Garnier, Jacqueline; Prou, Jean; Barille, Laurent.
The study of cultivated ecosystems, once the trophic capacity ha! been determined and the molluscan stocks estimated, requires a knowledge of  the evolution of the seasonal consumption of food by molluscs in natural conditions. For Crassostrea gigas, Mytilus edulis, Cerastoderma edule, Ruditapes philippinarum, the amount and quality of food have no effect on the filtration rate, except for the high load of mineraI seston. First an increase of the filtration rate was shown for Mytilus edulis and Cerastoderma edule at the end of winter and beginning of spring. Moreover Crassostrea gigas and Ruditapes philippinarum have shown no increase or only a small summer one. This evolution did not seem to be linked with the environmental conditions (temperature,...
Tipo: Text
Palavras-chave: Natural food; Bivalves; Filtration rates; Nourritures naturelles; Bivalves; Taux de filtration.
Ano: 1987
URL: http://archimer.ifremer.fr/doc/1987/publication-3304.pdf

Performances zootechniques des deux taxons Crassostrea gigas, Crassostrea angulata et de leurs hybrides dans des conditions d'élevage traditionnel dans le bassin de Marennes Oléron (France)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Huvet, Arnaud; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Faury, Nicole; Robert, Stephane; Goulletquer, Philippe.
This study presents the zootechnical performances in their natural habitat, the Marennes Oléron Bay, of two Crassostrea gigas and Crassostrea angulata taxons of European and Asian origin, as well as those of their "European" hybrids (6 studied strains). Growth performance seems to be a phenotypic characterisation linked with the maternal origin (c. gigas or C. angulata). The Asian "pure gigas" or "pure angulata" strains' growth performances differ more from those of their European "sisters" than the European taxons with their hybrids. The C. angulata strain, of Taiwanese origin, does not survive the second culture week in the Marennes Oléron Bay. The C. angulata strain seems to "carry" a strong mortality potential.
Tipo: Text
Palavras-chave: Performance croissnce; Hybrides; Zootechnie; Crassostrea angulata; Crassostrea gigas; Huîtres.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/2001/acte-3283.pdf

Rapport d'activité 2000 du Laboratoire Conchylicole de Poitou-Charentes de La Tremblade
Provedor de dados: 5
Autores: Goulletquer, Philippe.
La compétence géographique assurée par le Laboratoire dans ses fonctions concerne l'ensemble des Pertuis Charentais depuis le Sud-Vendée jusqu'à l'embouchure de la Gironde. Ce rapport d'activité tient compte de ces faits et présente par ailleurs les programmes de recherche selon la nomenclature établie dans le cadre du plan stratégique de l'Ifremer (1996-2000) et dans la définition des mandats de laboratoires.
Tipo: Text
Palavras-chave: Conchyliculture; Rapport d'activité; Réseau surveillance; Resources conchylicoles; Ressources côtières; Estimation stock; Marennes Oléron.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00074/18537/16084.pdf

Cycle de reproduction naturelle de l'huître creuse Crassostrea gigas
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Since its introduction to French coasts in the 1970s, Crassostrea gigas completes its reproductive cycle—i.e. regular annual recruitment and establishment of natural populations—in only two sectors (Charentes coast and Arcachon Bay). In other areas of Pacific oyster production (Normandy, Brittany, Vendée, Mediterranean), complete gametogenesis may occur, resulting in spawning events and even recruitment in favourable temperatures. Temperature seems to be the main limiting factor for in situ reproduction. Growth and reproduction occur simultaneously. The study of the reproductive cycle of one-year old oysters showed that gametogenesis was asynchronous with high interannual variability and growth appeared to take precedence over reproduction. On the...
Tipo: Text
Palavras-chave: Physiologie; Facteurs environnementaux; Cycle; Reproduction; Crassotrea gigas; Huîtres.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/1995/acte-3209.pdf

Programme National Qualité des Mollusques - Grille Nationale de Qualité de l'huître creuse Crassostrea gigas - Rapport Régional Poitou-Charentes
Provedor de dados: 5
Autores: Goulletquer, Philippe; Gras, Paul; Geairon, Philippe.
Le programme « Qualité de 1 'huitre creuse Crassostrea gigas développé depuis 1995 par l'IFREMER contient dans ses objectifs l'établissement d'une grille de qualité pour ce coquillage (Grizel, 1998). En l'absence d'étude exhaustive sur la disponibilité et la variabilité de la qualité de C. gigas commercialisée, il apparait difficile d'établir une telle grille. Différents facteurs vont influer les caractéristiques du produit mis en marché sur le plan national. On peut citer en particulier : le secteur géographique d'origine, la période de commercialisation en cours d'année, le mode d'élevage et/ou d'affinage et globalement les pratiques culturales définies par l'éleveur, Pour l'ensemble de ces raisons, un échantillonnage national a été réalisé pendant la...
Tipo: Text
Palavras-chave: Qualité produit; Huître creuse; Crassostrea gigas; Norme AFNOR.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00077/18793/16369.pdf

Recommendations on methods for the detection and control of biological pollution in marine coastal waters
Provedor de dados: 5
Autores: Olenin, Sergej; Elliott, Michael; Bysveen, Ingrid; Culverhouse, Phil F.; Daunys, Darius; Dubelaar, George B. J.; Gollasch, Stephan; Goulletquer, Philippe; Jelmert, Anders; Kantor, Yuri; Mezeth, Kjersti Bringsvor; Minchin, Dan; Occhipinti-ambrogi, Anna; Olenina, Irina; Vandekerkhove, Jochen.
Adverse effects of invasive alien species (IAS), or biological pollution, is an increasing problem in marine coastal waters, which remains high on the environmental management agenda. All maritime countries need to assess the size of this problem and consider effective mechanisms to prevent introductions, and if necessary and where possible to monitor, contain, control or eradicate the introduced impacting organisms. Despite this, and in contrast to more enclosed water bodies, the openness of marine systems indicates that once species are in an area then eradication is usually impossible. Most institutions in countries are aware of the problem and have sufficient governance in place for management. However, there is still a general lack of commitment and...
Tipo: Text
Palavras-chave: Biological invasion; Research needs; Monitoring; Management.
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00043/15465/12842.pdf

Potential environmental drivers of a regional blue mussel mass mortality event (winter 2014, Breton Sound, France)
Provedor de dados: 5
Autores: Polsenaere, Pierre; Soletchnik, Patrick; Le Moine, Olivier; Gohin, Francis; Robert, Stephane; Pepin, Jean-francois; Stanisiere, Jean-yves; Dumas, Franck; Bechemin, Christian; Goulletquer, Philippe.
In the context of global change, increasing mariculture production has raised particular concerns regarding its environmental impact and sustainability. Molluscs and particularly blue mussel account for a significant part of this total production. Although blue mussels are considered as pretty resilient to environmental disturbances, we report in this study an unprecedented mussel mortality event that occurred during the winter 2014 in the Breton Sound. 9000 metric tonnes of mussels were lost and mortality rates up to 100% were recorded at some farming areas. Through a coupling approach, the present work aimed to better understand the potential environmental drivers associated to those mortalities. Firstly we analysed long-term in situ and satellite data...
Tipo: Text
Palavras-chave: Mytilus edulis mortalities; Climate change; Breton sound; Long-term monitoring; Hydrodynamic modelling; Vibriosis.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00376/48708/49083.pdf

Causes of decline of oyster production (Crassostrea virginica) in the Maryland portion of the Chesapeake Bay : a literature study
Provedor de dados: 5
Autores: Goulletquer, Philippe; Heral, Maurice; Rotschild, Brian.
The historical landings of Eastern oyster Crassostrea virginica are described for the Maryland part of the Chesapeake Bay. The different trends are analyzed concurrently with the main events and management strategies which occurred. Three main periods are identified : (1) the great fishery when annual oyster landings from 1840 to 1890 reached 600,000 metric tons. This period was characterized by gross overfishing and the destruction of oyster habitat by the oyster gears; (2) the reduced but stable landings from 1900 to 1980, with failure of the reseeding plan connected to heavy sedimentation and anoxie summer conditions. Landings did not exceed 80,000 metric tons; (3) the large decrease of production (1981-1988), with landings as low as 15,000 metric tons...
Tipo: Text
Palavras-chave: Production; Chesapeake Bay; Mortalities; Crassostrea virginica; Oysters; Production; Chesapeake Bay; Mortalités; Crassostrea virginica; Huîtres.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/1994/publication-3081.pdf

Impact de l'Erika sur la pathologie de bivalves d'intérêt commercial: résultats préliminaires
Provedor de dados: 5
Autores: Thebault, Anne; Robert, Maeva; Renault, Tristan; Dumais, M.; Goulletquer, Philippe.
Après le naufrage de l'Erika, la question s'est rapidement posée de l'impact des hydrocarbures sur la santé des coquillages, car la pollution concernait des zones de production conchylicoles. Le suivi zoosanitaire en place dans ces zones permettait d'avoir des données de référence avant impact. Il a été choisi différents sites exposés de référence, qui ont fait l'objet d'analyse en toxicologie et en pathologie. A la différence du cas de l'Arnoco Cadiz, l'effort n'a pas été mis uniquement sur les huîtres mais aussi sur d'autres espèces de coquillages, comme les moules et des fouisseurs, particulièrement exposés comme les coques et les palourdes. La mesure de l'exposition effectuée par la Direction de l'Environnement Littoral (MONERlKA) montre qu'une...
Tipo: Text
Palavras-chave: Pollution; Pathologie; Hydrocarbures; Coquillages; HAP; Histologie; Finistère; Vendée.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00087/19826/17468.pdf

Application of a micro-respirometric volumetric method to respiratory measurements of larvae of the Pacific oyster Crassostrea gigas
Provedor de dados: 5
Autores: Goulletquer, Philippe; Wolowicz, Maciej; Latala, Adam; Brown, Craig; Cragg, Simon.
The application of a simple, fast and reliable volumetric microrespirometric method to assess respiration of bivalve larvae is discussed. As a model, C. gigas larvae of various sizes were used. Metabolic activity of veliger larvae was assessed by measuring respiratory rate for use in ecophysiological modelling. As an example of the application of this approach, additional measurements of veliger respiratory rates were carried out to assess the effect on larval metabolism of different concentrations of leachate from wood treated with chromated copper-arsenate (CCA). Veligers of Crassostrea gigas (length from 95 to 331 pm) were fed with a mixture of Isochrysis galbana) and Chaetoceros pumilum cells. Experiments were performed in a 20 degreesC constant...
Tipo: Text
Palavras-chave: Crassostrea gigas; Leachate; CCA; Volumetric micro respirometry; Larvae; Metabolism; Respiratory rate.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/publication-399.pdf

The Pacific cupped oyster Crassostrea gigas : a species introduced in Europe for aquaculture in the 70's to become invasive in the late 90's
Provedor de dados: 5
Autores: Miossec, Laurence; Goulletquer, Philippe.
The Pacific oyster Crassostrea gigas: from an introduced species for aquaculture to an invasive species for the ecosystem Miossec L. and Goulletquer Ph. The Pacific oyster Crassostrea gigas has been introduced worldwide for aquaculture purposes since the beginning of the last century. In most of the countries the species established broadly, emphasizing its ability to adapt to a wide range of environmental conditions. In Europe the Pacific oyster was massively introduced in the 1970s especially into France after mass mortalities of the Portuguese oyster Crassostrea angulata affected by a viral disease. Good environmental conditions in some French areas on the Atlantic coast induced successful recruitments in the following years. The population became...
Tipo: Text
Palavras-chave: Europe; Non indigenous introduction; Transfers; Crassostrea gigas; Oysters; Species introduced.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-3399.pdf

Knowledge for Society. How to limit impacts on marine biodiversity ?
Provedor de dados: 5
Autores: Goulletquer, Philippe.
At the present time, it has been determined that the average fish consumption per inhabitant should double by the year 2030, as it did between 1973 and 2003. Hence, what should we do to better preserve (if not increase) fish stocks that are constantly decreasing? How should aquaculture be considered? Can it meet this growing demand, and if so, what will be its environmental impact? How could developing countries ask aquaculture companies to take care of the extra costs linked to a sustainable aquaculture production?
Tipo: Text
Palavras-chave: Impact; Ecosystem; Biodiversity.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/acte-6209.pdf

Applications des Systèmes d'Information Géographiques en Aquaculture
Provedor de dados: 5
Autores: Le Moine, Olivier; Goulletquer, Philippe.
L'actuelle demande alimentaire croissante sur les produits de la mer met l'aquaculture en situation de développement; les stratégies de développement mises en place incluent des questions de durabilité économique, sociale et environnementale. Au cœur de celles-ci, l'accès à l'espace (sélection de sites, conflits d'usage, etc…) place cette dimension au premier plan. La planification spatiale du développement des projets aquacoles est donc un élément essentiel, incluse dans une démarche de gestion intégrée de la bande côtière. C'est un élément considéré comme une étape cruciale tant par les scientifiques dans le cadre d'une approche ecosystémique, que par les diverses nations et organismes Européens via le développement d’une réglementation ad-hoc. Dans ce...
Tipo: Text
Palavras-chave: SIG; Aquaculture; Gestion intégrée de la bande côtière; Gestion des interactions aquaculture-environnement; Planification spatiale marine.
Ano: 2013
URL: http://archimer.ifremer.fr/doc/00162/27299/25508.pdf

La Conchyliculture. La gestion des bassins conchylicoles
Provedor de dados: 5
Autores: Heral, Maurice; Goulletquer, Philippe.
Tipo: Text
Palavras-chave: Conchyliculture; Gestion bassin ostréicole; Ecosystème conchylicole.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/00119/23072/20912.pdf

Cultures phytoplanctoniques en continu en bassins extérieurs pour complément trophique en phase d'affinage
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Fouche, Dominique; Razet, Daniel; Soletchnik, Patrick; Faury, Nicole; Goulletquer, Philippe.
L'affinage est une technique traditionnellement utilisée autour du bassin ostréicole de Marennes-Oléron. Son but est d' améliorer la qualité, tant gustative que de résistance des huîtres Crassostrea gigas. La grande diversité des sites, des claires et l'entière dépendance vis à vis des aléas climatiques ne permettent pas d'obtenir des résultats fiables et répétitifs. Cette phase finale de l'élevage se déroule en claires traditionnelles, renouvelées en période de vives eaux dans des proportions variables (0 à 80%). C'est le seul apport trophique exogène dont bénéficient les huîtres (Soletchnick et al., 1995). Pour complémenter et stabiliser celui-ci, des cultures de phytoplancton "fourrage" ont été réalisées en bassins extérieurs. Différents auteurs ont...
Tipo: Text
Palavras-chave: Phytoplancton; Affinage; Huître creuse; Crassostrea gigas.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/00076/18763/16334.pdf

The French mussel industry : present status and perspectives
Provedor de dados: 5
Autores: Prou, Jean; Goulletquer, Philippe.
The French mussel industry produces around 60,000 metric tons on a yearly basis using two common species: Mytilus edulis, which is widely distributed along the Atlantic coastline, and Mytilus galloprovincialis, distributed mainly on Mediterranean shores. This production represents only half of the yearly consumption of mussels in France, leading to large imports from Spain and the Netherlands. Most imports occur between September and March, when the Atlantic production is reduced because of low meat quality due to spawning events. Although a public mussel fishery still exists, most production is based upon 3 culture techniques: on-bottom culture, longline and suspended culture, and bouchot-type culture, with the latter being developed in the l3lh century....
Tipo: Text
Palavras-chave: Mussel; On bottom culture; Suspended culture; Longline culture; French; Production; Mytilus galloprovincialis; Mytilus edulis.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-2802.pdf

A comparative field study of growth, survival and reproduction of Crassostrea gigas, C-angulata and their hybrids
Provedor de dados: 5
Autores: Soletchnik, Patrick; Huvet, Arnaud; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Faury, Nicole; Goulletquer, Philippe; Boudry, Pierre.
This paper reports a comparative study of two cupped oysters, Crassostrea gigas and C angulata, and their hybrids reared in the Marennes-Oleron Sound (France) under usual farming conditions. The relative proficiency of these species was characterized in terms of growth, survival and reproduction, three major concerns for oyster farming. Four populations of each taxon were sampled (C gigas: Japan and France; C angulata: Taiwan and Spain) and used as progenitors to produce six different progenies under common hatchery and nursery conditions (transfer of 5 to 6 g of seed oysters at sea and rearing in bags for 2 years). Mortality profiles differed greatly among the progenies. The C angulata progeny of Taiwanese origin gave the poorest results, with 100%...
Tipo: Text
Palavras-chave: Atlantic coast; Crassostrea gigas; Phenotypes; Hybrids; Oyster fanning.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/2002/publication-560.pdf

Analyse de la capacité trophique de l'écosystème "claires ostréicoles" dans le cadre de l'affinage de l'huître creuse Crassostrea gigas (Bassin de Marennes-Oléron)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Razet, Daniel; Goulletquer, Philippe; Geairon, Philippe; Le Moine, Olivier; Faury, Nicole.
Bien que défini par la Norme AFNOR (NF V45-056), l'affinage des huîtres C. gigas en claires ostréicoles traditionnelles reste une pratique zootechnique non contrôlée. L'expérimentation 1994 a permis de tester 1) l'effet de la densité d'élevage (2 à 10 huîtres/m2) sur la croissance et la production de C. gigas, 2) la variabilité au sein de la claire de la croissance, et 3) d'évaluer les différentes sources de variabilité des paramètres physico-chimiques et trophiques de la colonne d'eau et de l'interface eau sédiment. Différentes échelles spatio-temporelles de ces variables ont été évaluées variant entre 2 périodes consécutives de emplissage du marais jusqu'au suivi en continu (pas de temps de 5rnn) des paramètres. Les modèles de calibration des signaux en...
Tipo: Text
Palavras-chave: Crassostrea gigas; Production; Affinage; Claires ostréicoles; Modèle écosystème.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/00072/18361/15933.pdf

Etude des mortalités d'huîtres sur le bancs ostréicoles de Ronce Perquis (Bassin de Marennes-Oléron)
Provedor de dados: 5
Autores: Le Moine, Olivier; Soletchnik, Patrick; Razet, Daniel; Geairon, Philippe; Faury, Nicole; Goulletquer, Philippe.
In order to better understand the chronic summer mortality striking the Marennes Oléron Bay since 1988, a research program has been developed since 1994 in association with the professional sector. This study comprises the monitoring, from March to October 1997, of a homogeneous oyster population cultivated on-bottom and off-bottom on 15 working sites. One of these sites is equipped with a multiparameter probe and a valvometer. Measures are taken on an on-going basis on the working site.
Tipo: Text
Palavras-chave: Bassin de Marennes Oléron; Ronce   Perquis; Bancs Ostréicoles; Physiologie; Crassostrea gigas; Huîtres; Mortalités.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/1999/acte-3378.pdf

Mortalités printanières et estivales de l'huître creuse Crassostrea gigas dans le Bassin de Marennes - Oléron : Etude des élevages situés sur les bancs ostréicoles de Ronce-Perquis
Provedor de dados: 5
Autores: Soletchnik, Patrick; Le Moine, Olivier; Faury, Nicole; Razet, Daniel; Geairon, Philippe; Goulletquer, Philippe; Forest, Gwenaelle.
Depuis plusieurs années, le banc ostréicole de Ronce-Perquis dans le sud du Bassin de Marennes - Oléron constitue le site atelier pour l'étude des mortalités printanières de Crassostrea gigas. En 1997, l'effort a porté sur l'analyse spatio-temporelle d'une population homogène d'huîtres réparties sur 15 sites, à plat et en surélevé et à différentes altitudes. La température est enregistrée en continu sur 10 sites, à plat et (ou) sur tables. Des paramètres environnementaux descriptifs du sédiment sont analysés tous les 15 jours en parallèle des taux de mortalité. Les mesures biométriques ainsi que la maturation et la ponte sont suivies chaque mois pendant 6 mois.
Tipo: Text
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00080/19164/16759.pdf

Compte rendu de la réunion des 14 et 15 Avril 1993 - La Tremblade - Réseau Génétique Mollusques (REGEMO)
Provedor de dados: 5
Autores: Gerard, Andre; Naciri, Yamama; Coatanea, Denis; Martin, Anne-genevieve; Barret, Jean; Claude, Serge; Heurtebise, Serge; Devauchelle, Nicole; Joly, Jean-pierre; Goulletquer, Philippe; Baud, Jean-pierre; Nourry, Max; Bougrier, Serge; Renault, Tristan; Cochennec, Nathalie; Chollet, Bruno; Le Deuff, Rose-marie; Peignon, Jean-marie.
La discussion générale organisée à la fin de la deuxième journée a fait ressortir les points suivants: 1- Les participants se sont déclarés satisfaits de la tenue de la réunion, tant dans son déroulement, que dans les échanges d'informations auxquels elle a donné lieu. La quantité et la qualité des résultats présentés a permis de mettre en évidence la puissance d'analyse que représente le travail en réseau. 2-L'importance de la valorisation des résultats a été soulignée à plusieurs reprises. La diffusion de l'information devrait se faire dans un premier temps par la voie de rapport internes à la DRV, puis par la voie d'articles publiés dans des revues scientifiques. Sur le programme "C. gigas triploïdes", une première diffusion des résultats obtenus en...
Tipo: Text
Palavras-chave: Génétique; Sélection génétique; Huître plate; Ostrea edulis; Génétique population; Croissance.
Ano: 1993
URL: http://archimer.ifremer.fr/doc/00049/15981/13423.pdf

Suivi des espèces envahissantes marines à Saint Pierre et Miquelon. Année 2014
Provedor de dados: 5
Autores: Sellier, Marion; Poitevin, Pierre; Goraguer, Herle; Faure, Jean-marie; Goulletquer, Philippe.
Initiated in 2013, the present work carried out in 2014 extends the monitoring network focusing on marine invasive exotic species in Saint-Pierre and Miquelon archipelago. In a global context of coastal ecosystems’ changes, accentuated by direct or indirect effects of human activities, it became essential to implement a monitoring survey and to track the expansion of marine invasive species along Saint-Pierre and Miquelon shoreline. Fukui traps and tunicates collectors deployed on different stations as well as the timely completion of observational dives, have provided the following conclusions: several invasive species were again reported within the local marine ecosystem. Those species, i.e., Carcinus maenas, Caprella mutica, Ciona intestinalis,...
Tipo: Text
Palavras-chave: Marine Invasive species; Saint-Pierre and Miquelon; Aquaculture; Ecosystem; Espèces marines invasives; Saint-Pierre et Miquelon; Aquaculure; Ecosystème.
Ano: 2016
URL: http://archimer.ifremer.fr/doc/00312/42303/41635.pdf

Changement climatique en milieu côtier &amp; littoral : conséquences sur les peuplements marins
Provedor de dados: 5
Autores: Goulletquer, Philippe.
The effect of climate changes on marine ecosystems and the ecosystemic services identified in the framework of the World ecosystem assessment program for the millennium (MEA, 2001), is a major scientific issue. In the first place, it seems necessary to identify these changes' characteristics from a physics point of view, as well as from a specific biodiversity (e.g., species distribution areas, exotic and invasive species), populational or marine ecosystem functioning point of view (e.g., trophic chain). However, one of the main difficulties in assessing these impacts results from the superposition and the interactions between natural variability and the different anthropic effects including economic activities (e.g. fisheries). A number of doubts remain,...
Tipo: Text
Palavras-chave: Impact; Biodiversité; Ecosystème marin; Changement climatique.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/acte-6211.pdf

Summer mortality of the Pacific cupped oyster Crassostrea gigas in the Bay of Marennes-Oleron (France)
Provedor de dados: 5
Autores: Goulletquer, Philippe; Soletchnik, Patrick; Le Moine, Olivier; Razet, Daniel; Geairon, Philippe; Faury, Nicole.
A comprehensive research program has been developed since 1995 to focus on C. gigas abnormal mortality rates occurring regularly during the summer period in the Bay of Marennes Oleron (France). Several subprojects were carried out including in-vitro ecophysiological studies to asses l) the relationship between reproductive status, scope for growth and mortality, 2) effects of stress temperature on physiological functions. Meanwhile, field studies concerned monitoring surveys of calibrated oyster populations at various emersion time and geographic sites. A database was developed and incorporated into a geographic information system (GIS) to overlay several layers of information and establish relationship among environmental parameters and mortality rates....
Tipo: Text
Palavras-chave: Marennes Oleron bay; In situ continuous monitoring; Ecophysiology; Stress; Environmental conditions; Summer mortality; Crassostrea gigas; Marennes Oléron; In situ en continu; Suivis environnementaux; Ecophysiologie; Stress; Conditions environnementales; Mortalité estivale; Crassostrea gigas.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/1998/acte-3093.pdf

Interface between French Shellfish Industry and Research
Provedor de dados: 5
Autores: Prou, Jean; Goulletquer, Philippe; Heral, Maurice.
Historically, research involvement in shellfish industry appeared as soon as the 19th century with studies on oyster sanitary quality and nutritive values. Those aspects were developed to satisfy consumer's demand and public health issues. Later on, rearing technologies were developed to ensure optimization of the characteristics of shellfish population dynamic such as recruitment, growth, and mortality. In a third step, management of leasing grounds allocation required studies on ecosystems' functioning. It integrated over space and time relationships between environment (as a trophic resource) and shellfish production. Presently, new challenges regarding environmental protection and consumer's satisfaction have involved studies on optimized uses of...
Tipo: Text
Palavras-chave: Zoosanitary issues; Seawater quality; Space allocation; Shellfish research; Shellfish industry.
Ano: 2004
URL: http://archimer.ifremer.fr/doc/2004/acte-6252.pdf

Contribution à l'identification de l'impact des perceurs O. erinacea et O. inornata au cours de la campagne d'évalutation des stocks d'huîtres 2001
Provedor de dados: 5
Autores: Robert, Stephane; Le Moine, Olivier; Guilpain, Patrice; Soletchnik, Patrick; Faury, Nicole; Razet, Daniel; Geairon, Philippe; Goulletquer, Philippe; Seugnet, Jean-luc.
L' apparition de phénomène de prédation des huîtres par des bigorneaux perceurs n'est pas nouveau. Elle a été régulièrement constatée par la profession ostréicole. C'est ainsi qu 'on a pu enregistrer une destruction massive des bancs d'élevage de la baie de Bourgneuf en 1938. Des problèmes similaires ont été enregistrés dans la région de La Rochelle et à Arcachon en 1932, où des subventions on été allouées pour le ramassage d'Ocenebra erinacea. Ces phénomènes étaient alors liés à cette espèce Atlantique. L'apparition d'Ocenebrelilis inornatus, également connu sous le nom d'Ocenebra inornata, a été signalée en 1995 dans le bassin de Marennes Oléron par P.G. Sauriau comme nouvelle espèce de perceurs. Cette description a été concomitante avec l'augmentation...
Tipo: Text
Palavras-chave: Ostréiculture; Impact; Bigorneaux perceurs; Ocenebra erinacea; Ocenebra inornata; Marennes Oléron; Charente-Maritime.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00031/14233/11509.pdf

Affinage des huîtres creuses Crassostrea gigas en claires ostréicoles du Bassin de Marennes-Oléron : étude des moficiations de la Norme AFNOR-NF V 45 056
Provedor de dados: 5
Autores: Robert, Stephane; Goulletquer, Philippe; Soletchnik, Patrick; Geairon, Philippe; Le Moine, Olivier; Razet, Daniel; Faury, Nicole; Taillade, Sylvie.
Dans le cadre de sa démarche « qualité », la SRC de Marennes-Oléron souhaite faire évoluer les normes zootechniques d'élevage de l' huître «fine de claires» et «spéciales de claires» défi nies actuellement par la norme AFNOR NF V 45-056 (AFNOR, 1985). Les modifications proposées concernent une gestion saisonnière de la biomasse par m2 en élevage, respectivement de 1 et 3kg/m2 pendant 2 semaines entre les 1 avril-31 0ctobre et 3 semaines, du 1 novembre au 3 1 mars. Le Laboratoire Conchylicole de Poitou-Charentes (LCPC) a engagé des expérimentations afin de répondre à la demande professionnelle et administrative d 'évaluer l'effet sur la qualité finale des huîtres des modifications d'élevage proposées, en comparaison avec la norme officielle AFNOR (1985)....
Tipo: Text
Palavras-chave: Huître creuse; Crassostrea gigas; Affinage; Claires ostréicoles; AFNOR NF V 45-056.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00072/18366/15939.pdf

Ecophysiologie de la maturation sexuelle et de la ponte de l'huître creuse Crassostrea gigas : réponses métaboliques (respiration) et alimentaires (filtration, absorption) en fonction des différents stades de maturation
Provedor de dados: 5
Autores: Soletchnik, Patrick; Razet, Daniel; Geairon, Philippe; Faury, Nicole; Goulletquer, Philippe.
The study of maturation and spawning of the oyster is part of a research program to investigate the summer mortalities of the oysters, Crassostrea gigas in Marennes-Oléron Bay. Four maturity stages were simultaneously obtained by diet and thermal conditioning (immature, low maturation, mature and post-spawning stages). Measurements of clearance, filtration, absorption and respiration rates allowed a calculation of the scope for growth and hence an estimation of the oyster's energetic budget at various maturity stages. Male and female oysters had similar physiological responses. The filtration rate ranged from 2.4 to 2.6 1.h(-1) at the early stages of maturation and decreased to 1.8 1.h.' during the maturity stage. Growth rate resulting from gonad...
Tipo: Text
Palavras-chave: Huître; Crassostrea gigas; Conditionnement; Maturation; Filtration; Absorption; Respiration; Oyster; Crassostrea gigas; Conditioning; Maturation; Filtration; Absorption and respiration rates.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/publication-3090.pdf

Les mollusques invasifs des bassins conchylicoles du littoral Manche-Atlantique : diversité et structure génétiques des populations invasives, compétition avec les taxons indigènes, gestion du risque pour les écosystèmes et la conchyliculture
Provedor de dados: 5
Autores: Bachelet, Pierrre; De Montaudouin, Xavier; Desclaux, C.; Mairesse, G.; Raigne, H.; Randriambao, K.; Garcia Meunier, Pascale; Martel, C.; Pascal, P. Y.; Sauriau, Pierre-guy; Simon-bouhet, Benoît; Robert, Stephane; Geairon, Philippe; Goulletquer, Philippe; Grangere, Karine; Guilpain, Patrice; Le Moine, Olivier; Rossi, Nadege; Seugnet, Jean-luc; Soletchnik, Patrick.
Shellfish areas usually receive a large number of introduced species. During the present project, we specially focused on 4 marine benthic molluscs introduced in shellfish areas along the Channel and Atlantic coasts of France: the gastropods Crepidula fornicata, Ocinebrellus inornatus and Cyclope neritea, and the bivalve Ruditapes philippinarum. Our study was conducted according to three main axes:  (i) the characterization of introduction and expansion patterns of species within their newly colonized area. In the three invasive gastropods  C. fornnicata, C. neritea and 0. inornatus, a high level of genetic diversity was detected in the French populations which indicated a complex process of introduction (with multiple population sources or secondary...
Tipo: Text
Palavras-chave: Recommandations; Transfert; Ecosystèmes marins; Insularité; Expansion; Introduction espèces; Invasions biologiques; Mollusques.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-3305.pdf

Modelisation of oyster shell growth at 3 stations in the Patuxent river (Chesapeake Bay)
Provedor de dados: 5
Autores: Prou, Jean; Goulletquer, Philippe; Bacher, Cedric.
In oyster production area the determination of the stock, estimation of mortality and growth rates are determinant for knowledge of the fishery. Growth models can be used to predict the time to reach marketable size (76 mm in Chesapeake Bay). They are also important in term of management, when they can predict the future value of the stock (Askew, 1978). Oyster growth models can be built by analysing growth of natural oysters but absolute age is orten unknown. Many authors report growth data in Chesapeake Bay for suspended oyster culture. Unfortunalely, modelisation of the growth was not developed. In that study oyster, shell growth models have been established at three stations in the Patuxent river. Seasonal eITects on growth were integrated in the model
Tipo: Text
Palavras-chave: Modelisation; Oysters; Crassostrea virginica; Growth; Chesapeake Bay.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00200/31109/29512.pdf

Etude des facteurs environnementaux intervenant sur la production de la palourde japonaise d'élevage Ruditapes philippinarum
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Les populations d'élevage de Ruditapes philippinarum présentent des disparités de croissance et de mortalité en fonction des secteurs océaniques ou estuariens à Marennes-Oléron. Les mortalités hivernales sont associées à des productions somatiques négatives, en particulier en zone estuarienne, où les teneurs en seston minéral sont élevées (70 mg.1-1). L'étude écophysiologique montre une baisse de la digestibilité de la nourriture parallèlement à l'augmentation de sa teneur minérale. Les productions négatives résultent d'une nourriture assimilée en quantité inférieure au seuil de rendement nul de croissance (2.J.h- 1). Les productions somatiques et gamétiques de l'animal sont déterminées par le temps d'émersion. Une diminution de celui-ci induit une...
Tipo: Text
Palavras-chave: Estimation nourriture; Capacité trophique; Estimation production; Mortalité; Ecophysiologie; Relation trophique; Bivalvia; Ruditapes philippinarum; Facteurs environnementaux.
Ano: 1989
URL: http://archimer.ifremer.fr/doc/00098/20926/18535.pdf

Qualité des eaux littorales des Pertuis Charentais : Bilan et diagnostic
Provedor de dados: 5
Autores: Rostagno, Bernard; Violleau, Allain; Brun, Céline; Dietrich, Patrice; Fillon, Alain; Goulletquer, Philippe; Guichet, Roger; Kantin, Roger; Legay, Didier; Loubersac, Lionel; Masson, Daniel; Rocher, Gregory; Ryckaert, Mireille; Thomas, Gerard; Fichet, Denis; Guyot, Thierry; Miramand, Pierre; Pigeot, Jacques; Seguignes, Michel.
Cette étude, qui a rassemblé les compétences des instances de l'Etat chargées de la surveillance du milieu littoral (DDE, DDASS, IFREMER, Université de La Rochelle) a permis de dresser, à la veille de l'an 2000, un bilan de la situation environnementale du littoral de la « mer des Pertuis». Ce bilan, diversifié dans sa présentation, passe en revue les points marquants de "l'état de santé" de l'environnement, qu'il s'agisse de pollutions ciblées (chimiques, bactériologiques) ou d'autres nuisances variées. Il met en exergue les points forts et les points faibles en matière d'environnement littoral, et rappelle les efforts mis en oeuvre par les différentes administrations chargées de sa surveillance. Dans un premier temps, plus de 250 références...
Tipo: Text
Palavras-chave: Environnement; Qualité eaux; Littoral; Caractéristiques physiques; Economie; Qualité chimique; Qualité bactériologique; Phycotoxines; Biodiversité; Pollution; Recommandations; Pertuis Charentais; Département Charente-Maritime.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00072/18371/15943.pdf

Marine Molluscan Production Trends in France: From Fisheries to Aquaculture
Provedor de dados: 5
Autores: Goulletquer, Philippe; Heral, Maurice.
(NOT controlled OCR ) The main activity in French shellflshing is culturing. Most culture involves oysters, Grassostrea gigas, and Ostrea edulis; mussels, Mytilus edulis and M. galloprovincialis; and to a lesser extent the scallop, Pecten maximus, and the exotic Manila clam, Tapes philippinarum. Wild species harvested include the whelk, Buccinum undatum; abalone, Haliotis tuberculata; and bivalves, such as the cockle, Cerasioderma edule, pectinids, Chlamys varia and Aequipecten opercularis; and several clams, e.g., Mercenaria mercenana and Venerupis rhomboïdes. Recreational landings are substantial. The flat oyster, 0. edulis, has been part of human diets for centuries. Natural beds were exploited through the Middle Ages until the last century by...
Tipo: Text
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/publication-2391.pdf

Rapport d'activité 2001 du Laboratoire Génétique et Pathologie de La Tremblade
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Les principaux objectifs du Laboratoire visent essentiellement à développer des recherches chez les mollusques bivalves marins dans les domaines de la pathologie : surveillance des ressources conchylicole, identification des agents pathogènes, description de leur cycle de développement, mise au point des techniques de reproduction expérimentale des maladies, développement des outils performants de diagnostic utilisables à des fins de recherche ou de contrôle, étude de l'impact de ces maladies et de leur évolution géographique et temporelle. De la génétique : étude des ressources génétiques, testage de nouvelles espèces, de nouvelles populations et d'hybrides pour limiter les risques liés à la monoculture. Obtention de souches résistantes ou tolérantes aux...
Tipo: Text
Palavras-chave: Rapport activité; Génétique; Pathologie; Mollusques; Bivalves.
Ano: 2003
URL: http://archimer.ifremer.fr/doc/00074/18550/16100.pdf

Projet lagune du Grand Barachois : Rapport Phase 1
Provedor de dados: 5
Autores: Le Moine, Olivier; Robert, Stephane; Geairon, Philippe; Goraguer, Herle; Goulletquer, Philippe.
La dynamique des masses d'eau et les flux de transit semblent favoriser un comblement et/ou des limitations de renouvellement d'eau mettant en péril la durabilité de l’environnement de cette lagune Miquelonnaise. La Préfecture de Saint Pierre et Miquelon et la DTAM, en soutien à la gestion durable de cet environnement, ont sollicité l’Ifremer pour l’évaluation des flux d’alimentation de cette lagune. Une mission sur place a été réalisée en juin 2016, pour coordonner les actions et effectuer un certain nombre de mesures préliminaires (jaugeages et bathymétrie du chenal, courantométrie horizontale). Ces données sont complétées par une acquisition continue des vitesses de courant, avec des données disponibles à ce jour du 2 juin au 15 novembre 2016....
Tipo: Text
Palavras-chave: Hydrodynamique; Renouvellements; Saint-Pierre et Miquelon; Lagune; Grand Barachois; Hydrodynamic; Renewal rates; Saint Pierre and Miquelon; Lagoon; Grand Barachois.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00384/49512/50021.pdf

Rapport d'activité 1998 du Laboratoire Conchylicole de Poitou-Charentes La Tremblade
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Rapport d'activité 1998 du Laboratoire Conchylicole de Poitou-Charentes de La Tremblade
Tipo: Text
Palavras-chave: Aquaculture; Physiologie; Réseau surveillance; Conchyliculture; Invertébrés marins; Rapport activités.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00071/18259/15822.pdf

Growth and survival rates of bearded horse mussel (Modiolus barbatus Linne, 1758) in Mersin Bay (Turkey)
Provedor de dados: 5
Autores: Lok, A; Acarli, S.; Serdar, S; Kose, A; Goulletquer, Philippe.
The growth and survival rates of four size classes (10, 15, 20, and 25 mm) of bearded horse mussels (Modiolus barbatus) grown in net bags in Mersin Bay, Izmir, were assessed from May 2001 to May 2002. Temperature ranged 14-23 degrees C, average chlorophyll a was 3.34 +/- 0.35 mu g/l, average total particulate matter 12.43 +/- 0.68 mg/l, and average particulate organic carbon 210.23 +/- 18.00 mu g/l. Shell lengths increased 23.05, 19.76, 19.40, and 12.09 mm in the four classes (from small to large) and live weights increased 13.21, 10.46, 10.06, and 4.96 g, respectively. Survival rates ranged from 25% in the smallest size class to 87.5% in the 20 mm class (p &lt; 0.05). Mussels grew significantly fastest in the smallest size class (p &lt; 0.05).
Tipo: Text
Palavras-chave: Turkey; Survival; Modiolus barbatus; Growth; Bearded horse mussel.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-2143.pdf

Ecophysiologie de la maturation sexuelle et de la ponte de l'huître creuse Crassostrea gigas : réponses métaboliques (respiration) et alimentaires (filtration, absorption) en fonction des différents stades de maturation
Provedor de dados: 5
Autores: Soletchnik, Patrick; Razet, Daniel; Geairon, Philippe; Faury, Nicole; Goulletquer, Philippe.
The study of sexual maturation and spawning in the Pacific oyster (Crassostrea gigas) is part of a vast research programme that endeavours to understand the causes of mortality that occur sporadically during the spring and summer seasons in the Marennes-Oléron Bay. Thermal and diet conditioning were used to obtain oysters at each stage of maturity simultaneously. Using the measured rates of clearance, consumption, absorption and respiration provided estimates of growth potential and gave the energetic budget of oysters at different stages of sexual maturity. Physiological responses were similar for males and females. Filtration decreased from 2.4 to 2.6 l.h (-1) to 1.8 l.h (-1) with increasing maturity. Weight gain was associated with gonad development and...
Tipo: Text
Palavras-chave: Ponte; Maturation; Crassostrea gigas; Ecophysiologie.
Ano: 1997
URL: http://archimer.ifremer.fr/doc/1997/acte-3251.pdf

Pacific cupped oyster - Crassostrea gigas
Provedor de dados: 5
Autores: Lapegue, Sylvie; Boudry, Pierre; Goulletquer, Philippe.
Originating from the north eastern Asia, Crassostrea gigas is endemic to Japan, but has been introduced and translocated, mainly for aquaculture purpose, into several countries, almost worldwide (1). In North America, the species can be found from Southeast Alaska to Baja California, while in European waters the species is cultured from Norway to Portugal as well as in Mediterranean Sea (Fig.1) (2). Biological characteristics make it suitable for a wide range of environmental conditions, although it is usually found in coastal and estuarine areas within its natural range. Although highly variable, the invasiveness pattern of C. gigas has been demonstrated in several countries and therefore considered as a pest or a noxious species in those areas (3).
Tipo: Text
Palavras-chave: Genetics; Ecology; Crassostrea gigas; Biology; Oysters.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-3322.pdf

The case for sequencing the Pacific oyster genome
Provedor de dados: 5
Autores: Hedgecock, Dennis; Gaffney, Patrick M.; Goulletquer, Philippe; Guo, Ximing; Reece, Kimberly; Warr, Gregory.
An international community of biologists presents the Pacific oyster Crassostrea gigas as a candidate for genome sequencing. This oyster has global distribution and for the past several years the highest annual production of any freshwater or marine organism (4.2 million metric tons, worth $3.5 billion US). Economic and cultural importance of oysters motivates a great deal of biologic research, which provides a compelling rationale for sequencing an oyster genome. Strong rationales for sequencing the oyster genome also come from contrasts to other genomes: membership in the Lophotrochozoa, an understudied branch of the Eukaryotes and high fecundity, with concomitantly high DNA sequence polymorphism and a population biology that is more like plants than any...
Tipo: Text
Palavras-chave: Genomics; Evolutionary and ecological; Nucleotide diversity; Lophotrochozoa; Crassostrea gigas genome sequence; Pacific oyster.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-2128.pdf

Développement de l'outil cartographique du marais salé de Charente Maritime
Provedor de dados: 5
Autores: Le Moine, Olivier; Geairon, Philippe; Hussenot, Jerome; Turpin, Vincent; Goulletquer, Philippe.
Tipo: Text
Palavras-chave: Cartographie; Marais salé; Numérisation; Charente Maritime.
Ano: 2002
URL: http://archimer.ifremer.fr/doc/00272/38373/36690.pdf

Evolution des températures et des salinités de l'estuaire de la Charente au lieu- dit les Fontaines de Lupin - Année 2000
Provedor de dados: 5
Autores: Robert, Stephane; Razet, Daniel; Seugnet, Jean-luc; Geairon, Philippe; Guilpain, Patrice; Goulletquer, Philippe; Soletchnik, Patrick; Le Moine, Olivier; Faury, Nicole.
La présentation des mesures de salinités et de températures acquises au cours de l'an 2000, dans l'estuaire de la Charente s'inscrit dans la continuité de la campagne réalisée en 1999. L'objectif de cette surveillance est bien d'obtenir sur plusieurs années une évolution temporelle de ces paramètres afin 1) d'évaluer l'impact de la future retenue d'eau en amont de la Charente, 2) de caractériser les conditions température-salinité favorables (et défavorables) à la survie larvaire des huîtres en période estivale, 3) de disposer de données permettant de valider les modèles permettant de simuler les conditions trophiques des cheptels conchylicoles du Bassin de Marennes-Oléron. Ce travail s'inscrivant dans la durée, il est nécessaire dans un premier temps...
Tipo: Text
Palavras-chave: Salinité; Température; Estuaire Charente; Variabilités; Marennes Oléron bassin; Charente-Maritime.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00031/14241/11516.pdf

Anthrophisation in introduction d'espèces exogènes: mise en place de l'analyse génétique d'une population invasive de bigorneaux perceurs Ocinebrellus inornatus (Recluz, 1851) dans le bassin de Marennes-Oléron
Provedor de dados: 5
Autores: Garcia-meunier, Pascale; Saab, Lucie; Pigeot, Jacques; Chevalier, Guillemette; Goulletquer, Philippe; Sauriau, Pierre-guy.
bien qu'elles aient existé depuis plusieurs siècles, les invasions biologiques en milieu marin se sont considérablement accélérées durant les dernières décennies, suite à l'accroissement du trafic maritime à travers les océans et aux transferts intercontinentaux d'espèces à des fins d'aquaculture. Ainsi, la découverte dans le bassin de Marennes-Oléron d'une nouvelle espèce de bigorneau perceur Ocinebrellus inornatus (Récluz,1851), originaire du Pacifique asiatique, laisse présager un accroissement des risques de mortalité pour les cheptels cultivés (huître, moule) et pour les ressources de la pêche littorale. Notre premier objectif est avant d'en étudier la dynamique de population d'en définir les caractéristiques génétiques en comparaison de celles de...
Tipo: Text
Palavras-chave: Ocinebrellus inornatus; Invasions biologiques; Pression anthropique; Marqueurs moléculaires; Pertuis Charentais.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00065/17582/15105.pdf

Diversification de la production : culture de palourdes sur estran, résultats années 84-85
Provedor de dados: 5
Autores: Goulletquer, Philippe; Prou, Jean; Heral, Maurice.
Following the development of net protection techniques (1980), Japanese clam Ruditapes philippinarum farms develop in the ponds of Charente-Maritime. The county production for 1984 is about 100 tonnes, for a turnover of 4.5 Million Francs. To this day, farmers cultivating clams in ponds over a full cycle get better growth results during the first year. The size of 24 mm is obtained with a density of 200 individuals per square metre. However, due to the type of water input in ponds and to the limited primary production developing in the latter, it appears that biomasses in farms during the second year should not be greater than 0.5 to 1 kg per m² (30 to 50 clams per m²). Thus, the development of clam culture in marsh areas comes to a halt, as farmers are...
Tipo: Text
Palavras-chave: Marennes Oléron; Mortalité; Biomasse; Croissance pondérale; Croissance linéaire; Biométrie; Elevage; Ruditapes philippinarum; Palourdes.
Ano: 1985
URL: http://archimer.ifremer.fr/doc/1985/rapport-3840.PDF

European flat oyster - Ostrea edulis
Provedor de dados: 5
Autores: Lapegue, Sylvie; Beaumont, A.; Boudry, Pierre; Goulletquer, Philippe.
The European flat oyster, Ostrea edulis, a native of Europe, occurs naturally from Norway to Morocco in the North-Eastern Atlantic and in the whole Mediterranean Basin; It has been a harvested species for at least 6000 years. Natural populations are also observed in eastern North America, from Maine to Rhode Island, following intentional introductions in the 1940s and 1950s. The species was also introduced in Canada for aquaculture purpose 30 years ago and some populations naturalised in Nova Scotia, New Brunswick and British Columbia. These stocks were imported from naturalised populations in Maine whose ancestors originated in the Netherlands.
Tipo: Text
Palavras-chave: Genetics; Ecology; Biology; Ostrea edulis; Oysters.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/acte-3321.pdf

Integration of shellfish farming activies in three French coastal environments : Mont Saint-Michel Bay, Gulf of Morbihan, and Marennes-Oleron Bay
Provedor de dados: 5
Autores: Mazurie, Joseph; Le Mao, Patrick; Camus, Patrick; Bacher, Cedric; Goulletquer, Philippe.
Integration of shellfish farming along the French shoreline (around 5500 km) has been progressive, as marine bivalve culture is a traditional activity in our country. The history of mussel culture relates that the "bouchot" technique (intertidal culture on wooden poles, producing annually around 60,000 tons) was developed as early as the XIIIth century, by a refugee attempting to capture birds by sticking branches of brushwood along the shore. The European flat oyster, Ostrea edulis, already appreciated at the Roman period, was first cultivated in France after Victor Coste introduced the technique of spat collection at the end of the XIXth century. The Pacific cupped oyster, genus Crassostrea, now the most-cultivated in France (around 120,000 tons marketed...
Tipo: Text
Palavras-chave: Trophic capacity; Trophic resource; Nature conservation; Coastal zone management; Biodiversity; Mytilus edulis; Mussels; Integration; Ostrea edulis; Crassostrea gigas; Oysters.
Ano: 2007
URL: http://archimer.ifremer.fr/doc/2007/acte-3400.pdf

Mortalités printanière et estivale de l'huître creuse C. gigas en élevage à plat dans le bassin de Marennes-Oléron. Etude du métabolisme du glycogène sur différentes origines de cheptels
Provedor de dados: 5
Autores: Faury, Nicole; Remoue, Sophie; Soletchnik, Patrick; Goulletquer, Philippe; Geairon, Philippe; Le Moine, Olivier; Razet, Daniel; Guilpain, Patrice; Robert, Stephane; Taillade, Sylvie.
This study aims to assess the broodstock origin and cultural effects on oyster summer mortality rates. Three oyster batches, two originating from the Marennes-Oléron Bay, and one from the Normandy rearing area were deployed in March 2000 on the Ronce Perquis oyster bank, on experimental site since 1996. On bottom cultured oysters were monitored until January 2001. By the end of the experiment, the cumulative mortality ranged from 51 to 58 %. Following on initial mortality rate (8.8 % to 9.3 %), oyster batches showed a critical period early July. In 15 days, mortality rate reached 13.7 %. Over the rearing period, the oyster shell growth ranged between 8.9 g and 12.7 g. The somatic gain represented 0.44-0.48 g of dry meat weight. Spawning event occured in...
Tipo: Text
Palavras-chave: Taux de mortalité; Croissance; Composition biochimique; Effort de reproduction; Incorporation du glucose; Crassostrea gigas; Bassin de Marennes Oléron; Charente-Maritime; Mortality; Growth rate; Biochemical content; Glycogen synthase; Crassostrea gigas; Bay of Marennes Oleron; Charente-Maritime.
Ano: 2001
URL: http://archimer.ifremer.fr/doc/00031/14235/11511.pdf

Effets de la turbidité sur les palourdes adultes Ruditapes philippinarum (Adams &amp; Reeve) : croissance, mortalité, effort de reproduction, composition biochimique
Provedor de dados: 5
Autores: Daou, Rafik; Goulletquer, Philippe.
Following observations on disparity in the growth of the Manila clam bred in the field, laboratory experiments were conducted to test the turbidity. This factor influenced the growth and mortality of Manila clam. The reproductive effort, growth and mortality of two populations were followed, one being cultivated in water with high levels on silt. A biochemical survey permitted the response to the effect of mineral particles to be estimated
Tipo: Text
Palavras-chave: Mortality; Reproductive effort; Biochemical changes; Ruditapes philippinarum; Turbidity; Mortalité; Effort de reproduction; Composition biochimique; Ruditapes philippinarum; Turbidité.
Ano: 1988
URL: http://archimer.ifremer.fr/doc/1988/publication-2876.pdf

Evalution du bilan énergétique de l'huître creuse, Crassostrea gigas, en baie de Marennes-Oléron (France)
Provedor de dados: 5
Autores: Soletchnik, Patrick; Goulletquer, Philippe; Heral, Maurice; Razet, Daniel; Geairon, Philippe.
This ecophysiological study was conducted on the Japanese oyster (Crassostrea gigas) reared in Marennes-Oléron bay (France), in May 1992. Measurements were achieved using natural food conditions on three different days (a, b, c) at different tide levels (coefficient of 49, 57, and 88). Total particulate matter was continuously monitored with a micro-computer and a turbidimeter probe. The "consumption" function was calculated using a new formula allowing for particulate leakage prior to the pre-ingestive particle sorting. This particle leakage represents a passive loss of particles flowing through the branchial filter. Comparisons of the consumption and absorption rates of organic matter and chlorophyll a showed significant differences between seston...
Tipo: Text
Palavras-chave: Crassostrea gigas; Consumption rate; Selection efficiency; Absorption rate; Energetic budget; Organic matter; Chlorophyll alpha; Marennes-Oleron bay.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/publication-3086.pdf

Etude du niveau d'aneuploïdie dans les populations des zones de captage du bassin de Marennes-Oléron - Contrat Plan Etat Région Poitou-Charentes 1999 - Rapport 1999
Provedor de dados: 5
Autores: Lapegue, Sylvie; Thiriot Quievreux, Catherine; Mccombie, Helen; Heurtebise, Serge; Boudry, Pierre; Robert, Stephane; Soletchnik, Patrick; Goulletquer, Philippe; Gerard, Andre.
Divers travaux, menés depuis 1984, montrent qu'il existe, chez l'huître creuse Crassotrea gigas, des cellules montrant un nombre anormal de chromosomes (2n = 19, 18 ou même 17 au lieu de 2n = 20). Le niveau d'aneuploïdie est déterminé par le décompte des chromosomes à partir de suspensions cellulaires de tissu branchial. Le pourcentage de cellules aneuploïdes est toujours significativement supérieur dans les "lots de queue", c'est-à-dire les huîtres présentant des croissances plus faibles, et peut atteindre plus de 30 %. Récemment, une étude réalisée au sein du programme européen « Genephys » a démontré que plus de 50 % de la variance pour la vitesse de croissance était liée au taux d'aneuploïdie. Le but de l'expérimentation menée en 1999 est de faire un...
Tipo: Text
Palavras-chave: Génétique; Aneuploïdie; Génétique des populations; Biochimie; Marennes-Oléron; Huître creuse; Crassostrea gigas.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00044/15522/12909.pdf

Gestion des bassins conchylicoles
Provedor de dados: 5
Autores: Heral, Maurice; Prou, Jean; Sauriau, Pierre-guy; Goulletquer, Philippe.
The excess of farmed mollusc biomass in some French shellfish-farming basins (Marennes-Oléron basin, Isle of Ré, Isle of Bourgneuf) has been clearly highlighted. This manifests itself as a decrease of growth consistency of the molluscs and an increase in chronic mortality rates not linked to pathogenic agents. To this excess of farmed biomass are added the biomass of oysters or "wild" mussels or biomass linked to abandoned concessions.
Tipo: Text
Palavras-chave: Estimation; Croissance; Biomasse; Conchylicultre.
Ano: 1995
URL: http://archimer.ifremer.fr/doc/1995/acte-3084.pdf

L'ostréiculture sur la côte Ouest du Cotentin
Provedor de dados: 5
Autores: Goulletquer, Philippe; Joly, Jean-pierre; Kopp, Joel; Legagneur, Eric; Moriceau, Jacques; Ruelle, Francois.
L'ostréiculture sur la côte Ouest Cotentin a été étudiée à partir d'estimations des stocks en élevage et de suivis de populations entre 1990 et 1992. A partir de stratégies d'échantillonnages, les stocks en élevage ont été estimés à 33 556 et 35 542 t respectivement en 1990 et 1991. Sur une production normande annuelle totalisant 34 914 tonnes, 53% a été produit sur la côte Ouest Cotentin en 1990. Un modèle global d'aménagement est proposé définissant la relation entre les performances de croissance mesurées, les cheptels en élevage, le niveau d'émersion, et la distance par rapport aux principales sources d'éléments nutritifs terrigènes. Près de 80% de la variabilité du poids final est expliqué par ce modèle régressif destiné à faciliter les décisions...
Tipo: Text
Palavras-chave: Crassostrea gigas; Stock; Croissance; Composition biochimique; Aménagement; Cotentin.
Ano: 1994
URL: http://archimer.ifremer.fr/doc/00092/20326/17972.pdf

Diversification de la production : cultures de palourdes sur estran
Provedor de dados: 5
Autores: Goulletquer, Philippe.
Les premiers essais de culture de palourdes japonaises sur estran en Charente-Maritime ont été réalisés en 1984 : le suivi de croissance de 3 populations de palourdes Ruditapes philippinarum pour 1984-1985, permet de mieux préciser l'optimum des conditions d'élevage que l'on peut envisager dans le bassin de Marennes-Oléron. Du fait du ralentissement de croissance en période estivale, entraînant un retard au niveau de la reproduction et un état physiologique relativement affaibli à l'entrée de l'hiver, qui conditionne les mortalités hivernales, il apparaît d'ores et déjà aléatoire d'entreprendre des élevages à des coefficients de marée inférieurs à 50. En effet, comme pour les populations d'huîtres (Héral et al., 1983), un amaigrissement hivernal prolongé...
Tipo: Text
Ano: 1986
URL: http://archimer.ifremer.fr/doc/00390/50178/50799.pdf

The shell organic content in the energy budget of Mytilus trossulus from the South Baltic
Provedor de dados: 5
Autores: Wolowicz, Macciek; Goulletquer, Philippe.
La quantité de matière organique et sa valeur énergétique ont été évaluées pour les coquilles de Cerastoderma glaucum, Macoma balthica et Mytilus trossulus de la baie de Gdansk, par extraction chimique et microcalorimétrie. Le contenu moyen en matière organique varie de 0,54% chez C.glaucum, à 5,21 % chez M. balthica et 5,92% chez M. trossulus. La valeur énergétique de la matière organique de la coquille varie entre 15,15 (± 1.41) j .mg-1 chez M. balthica, 20,17 (± 1,60) j.mg-1 chez M. trossulus et 23,88 (± l ,56) j.mg-1 chez C. glaucum. Le contenu en matière organique de la coquille et sa valeur énergétique sont spécifiques, et corrélés avec la microdistribution géographique (facteurs de l'environnement) de la population, ou avec le type de sédiment. Des...
Tipo: Text
Palavras-chave: Matière organique; Valeur énergétique; Coquille; Mytilus trossulus; Organic matter; Energy values; Shell; Mytilus trossulus.
Ano: 1999
URL: http://archimer.ifremer.fr/doc/00065/17594/15118.pdf

Affinage des huîtres creuses Crassostrea gigas en claires ostréicoles du Bassin de Marennes-Oléron : Etude des modifications de la Norme AFNOR-NF V 45 056
Provedor de dados: 5
Autores: Robert, Stephane; Goulletquer, Philippe; Soletchnik, Patrick; Geairon, Philippe; Le Moine, Olivier; Razet, Daniel; Faury, Nicole; Taillade, Sylvie.
Within its oyster quality project, the Marennes-Oleron Professional Organization (SRC) aims to improve the zootechnic rearing conditions in ponds for the Pacific cupped oyster C. gigas "fines de claires" and "speciales de claires", presently specified by the French norm AFNOR NF V45-056 (AFNOR, 1985). The proposed modifications concern a seasonal management of the oyster biomass per m2 , using 1 and 3kg/m2, during 2 weeks from April 1rst to October 31, and 3 weeks from November 1 to March 31, respectively. The Shellfish Aquaculture Laboratory of Poitou-Charentes (LCPC) carried out experiments to address the professional and decision-makers request for an assessment of those modifications on the final oyster quality compared to the current rearing...
Tipo: Text
Palavras-chave: Huître creuse; Crassostrea gigas; Affinage; Claires ostréicoles; AFNOR NF V 45-056; Pacific Cupped oyster; Crassostrea gigas; Growth; Oyster ponds; AFNOR NF V 45-056.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00102/21325/18948.pdf

Physiologie de la maturation et de la ponte chez l'huître creuse Crassostrea gigas
Provedor de dados: 5
Autores: Soletchnik, Patrick; Geairon, Philippe; Razet, Daniel; Goulletquer, Philippe.
The physiological ecology of the Pacific oyster Crassostrea gigas was studied using a conditioning delayed by temperature. Experiments were carried out on five batches and 2 year-classes classified into 6 maturation stages. The scope for growth concerning the stages N*5 and 6 was nearly zero while positive for early stages as well as for the post-spawning stage. Moreover, the 1 year-old oysters showed a significant lowered scope for growth (-110 J/h) compared to adult oysters (-14 J/h), therefore demonstrating the increased sensitivity of young oysters to stressful environmental conditions. By comparing the experimental results with the current models, developed on immature oysters, facilitates the model parameters spécifications during gametogenesis. For...
Tipo: Text
Palavras-chave: Modelling; Ecophysiology; Mortality; Crassostrea gigas; Modèle; Ecophysiologie; Mortalité; Crassostrea gigas.
Ano: 1996
URL: http://archimer.ifremer.fr/doc/1996/rapport-1643.pdf

Réseau de veille zoosanitaire des mollusques REPAMO - Rapport d'activité pour l'année 1997
Provedor de dados: 5
Autores: Berthe, Franck; Pichot, Yves; Chollet, Bruno; Thebault, Anne; Kuntz, Gregoire; Tige, Gilbert; Thebault, Anne; Fleury, Pierre-gildas; Hirata, Toshio; Le Coguic, Yvette; Renault, Tristan; Lipart, Cecile; Grizel, Henri; Joly, Jean-pierre; Mazurie, Joseph; Baud, Jean-pierre; Goulletquer, Philippe; Dreno, Jean-paul; Buestel, Dominique.
Le réseau de veille zoosanitaire des mollusques, REPAMO, a été créé en 1992 afin de protéger les espèces d'intérêt économique des maladies susceptibles de les affecter. En effet, de même que les autres productions animales, la conchyliculture est frappée par diverses maladies dont certaines se comportent comme des facteurs limitants de la qualité ou de la quantité des productions. L' histoire de l'ostréiculture française a connu de tristes expériences en la matière, notamment dans les années 70 pour l' huître creuse portugaise, Crassostrea angulata ou encore pour l'huître plate, Ostrea edulis. En fait, nous ne disposons que de très peu de possibilités de protéger les mollusques bivalves vis à vis des maladies infectieuses. D' une part, les traitements,...
Tipo: Text
Palavras-chave: Réseau surveillance; Pathologie; Mollusques bivalves; Mortalité.
Ano: 1998
URL: http://archimer.ifremer.fr/doc/00098/20901/18521.pdf

Effect of the density of the culture and the depth on the seasonal variation of the biochemical composition of Crassostrea virginica in patuxent river (Chesapeake Bay)
Provedor de dados: 5
Autores: Prou, Jean; Heral, Maurice; Goulletquer, Philippe; Forget, Maïté; Bougrier, Serge; Razet, Daniel.
The project of cultivation of oyster has been designed to evaluate the growth rate, the mortality, the reproductive effort, production and biochemical composition of the oyster function of the density and the depth. This plan was intended: - to build model of growth rate, - to demonstrate the action of the different parameters on growth rate (temperature, food effect...), - to evaluate the density effect to see if the available food could be a limiting factor, - to estimate the effect of the depth joined to the impact of the high turbidity near the bot tom, - to detect the mortality related to the prevalence of diseases.   The project began in July 1989 by dredging 20 000 small oysters at the mouth of the Patuxent River near Cove Point. Three experimental...
Tipo: Text
Palavras-chave: Physiology; Seasonal variation; Biochemical composition; Density; Crassostrea virginica; Cheseapeake Bay.
Ano: 1991
URL: http://archimer.ifremer.fr/doc/00200/31104/29503.pdf