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Registros recuperados: 28
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Bilan de la deuxième période d'élevage du silure glane (Silurus glanis) en condition tropicale et en circuit recyclé. (Collaboration Ifremer Palavas/Les Viviers de la Castillonne) ArchiMer
Gasset, Eric; Rotureau, Aurelie; Sabarich, Laurent; Blancheton, Jean-paul.
Tipo: Text
Ano: 2002 URL: http://archimer.ifremer.fr/doc/00119/23019/20850.pdf
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Caractérisation de la qualité du platax (Platax orbicularis) issu d’aquaculture : transformation - composition chimique - caractérisation sensorielle ArchiMer
Knockaert, Camille; Cornet, Josiane; Cardinal, Mireille; Gasset, Eric; Maamaatuaiahutapu, Moana; Coves, Denis.
Tipo: Text
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00058/16917/14396.pdf
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Elevage larvaire du loup Dicentrarchus labrax. Standards d'élevage 1990-1991 à la station Ifremer de Palavas ArchiMer
Gasset, Eric.
Au cours de la saison 90-91, 2 cycles d'élevage larvaire de loups ont été effectués à la Station de Palavas. Ces 2 cycles représentent 1 fois 4 bassins de 2 m3 (cycle Lp/Ol/L/91) et 1 fois 2 bassins de 2 m3 (cyae Lp/04/L/91). Cette note a pour but de faire le point sur les normes d'élevage larvaire du loup utilisées au cours de ces élevages.
Tipo: Text
Ano: 1991 URL: http://archimer.ifremer.fr/doc/00342/45342/44805.pdf
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Effect of chronic ammonia exposure on growth of European seabass (Dicentrarchus labrax) juveniles ArchiMer
Lemarie, Gilles; Dosdat, Antoine; Coves, Denis; Dutto, Gilbert; Gasset, Eric; Person, Jeannine.
Chronic effects of ammonia were studied in juvenile seabass, Dicentrarchus labrax (mean weight= 11 g), exposed for 63 days to eight stable ammonia concentrations, ranging from 0.24 to 0.90 mg l(-1) unionised ammonia nitrogen (UIA-N), respectively, from 6.1 to 22.3 mg l(-1) total ammonia nitrogen (TA-N). Temperature (21.8 degreesC), pH (8.0), salinity (37.0 ppt), and oxygen concentration (over 80% saturation at the outlet) were maintained constant. Fish were fed using a self-feeder device, and they were starved during the last 8 days. Mortality of 28.9 and 42.6% occur-red within the first 8 days at the two highest UIA-N concentrations, respectively, 0.90 and 0.88 mg l(-1). From days 0 to 55, a 1.8-fold increase in weight gain was observed under the 0.90-mg...
Tipo: Text Palavras-chave: Plasma ammonia; Growth; Seabass; Chronic toxicity; Ammonia.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/publication-628.pdf
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Effect of chronic exposure to ammonia on growth, food utilisation and metabolism of the European sea bass (Dicentrarchus labrax) ArchiMer
Dosdat, Antoine; Person, Jeannine; Coves, Denis; Dutto, Gilbert; Gasset, Eric; Le Roux, Annick; Lemarie, Gilles.
The chronic effects of exposing sea bass (average initial weight 100 g) to ammonia in water at 22 degreesC were first evaluated over a 61-day period (period 1, P1) during which nine different groups were submitted to nine ambient ammonia levels ranging from 0.014 to 0.493 mg 1(-1) NH3-N (0.53-16.11 mg 1(-1) total ammonia nitrogen (TA-N)) and fed using self-feeders. At the end of P1, the fish were starved for 10 days (P2). Their recovery capacity was tested over 43 days (P3) after which the exogenous ammonia supply was stopped in all treatments and the fish were allowed to feed. After 20 days of exposure a highly significant effect of ammonia was evident from the decrease in feeding activity, voluntary feed intake (VFI) and specific growth rate (SGR), and...
Tipo: Text Palavras-chave: Sea bass; Self feeding; Compensatory growth; Chronic toxicity; Ammonia.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/publication-595.pdf
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Maîtrise technique de la production de poissons lagonaires Rapport 2008 et annexes ArchiMer
Maamaatuaiahutapu, Moana; Joufoques, Vaiana; Tamata, Thiery; Dupieux, Sylvain; Teissier, Alexandre; Rarahu, David; Remoissenet, Georges; Gasset, Eric; Knockaert, Camille; Gueguen, Yannick; Coves, Denis.
Ce rapport traite de la poursuite de l’acquisition de connaissances, du début du transfert vers le secteur privé et des futurs travaux sur de l’élevage du Paraha peue (Platax orbicularis). Acquisition de connaissances porte sur (i) Grossissement en cages en fonction du site d’élevage, tests de produits immuno-stimulants, définition de traitements anti-parasitaires, mise au point des méthodes de transport d’alevins et la mise en cages précoces d’animaux de 1 g pour le transport par voie aérienne vers les îles (i.i.) Synchronisation des pontes et mise en place d’un plan de croisement de géniteurs diminuant le risque de consanguinité et permettant un progrès génétique par la domestication et/ou la sélection, ainsi que la mise au point d’outils de...
Tipo: Text
Ano: 2008 URL: http://archimer.ifremer.fr/doc/00128/23887/21820.pdf
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Selection of finfish species (seabass) as candidates for aquaculture in French Polynesia ArchiMer
Fuchs, Jacques; Gasset, Eric; Nedelec, Georges.
Species with a very high potential for aquaculture, allowing development projects on a short terms basis: the seabass originating from S.E. Asia. Species, potentially interesting but presenting some drawbacks, as difficulties to perform larval rearing or presenting pathological problem. Species considered as difficult to rear and not retained like Siganus argenteus , Siganidae or Caranx ignobilis , Carangidae. The future development of finfish in Polynesia is emphasized and a project of sea bass netcage culture in Polynesian lagoon is presented.
Tipo: Text Palavras-chave: Siganus argenteus; Oreochromis; Coryphaenidae; Epinephelus microdon; Serranidae; Lates calcarifer; Centropomidae; Pisces; Fry; Fish larvae; Lagoons; Cage culture; Pellet feeds; Sexual reproduction; Spawning; Growth.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/acte-1474.pdf
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The effect of density on sea bass (Dicentrarchus labrax) performance in a tank-based recirculating system ArchiMer
Sammouth, Sophie; Roque D'Orbcastel, Emmanuelle; Gasset, Eric; Lemarie, Gilles; Breuil, Gilles; Marino, Giovanna; Coeurdacier, Jean-luc; Fivelstad, Sveinung; Blancheton, Jean-paul.
Sea bass (Dicentrarchus tabrax) (135 +/- 4 g) were reared under tank-based recirculating aquaculture system for a 63-day period at four densities: 10, 40, 70, 100 kg m(-3). Fish performance, stress indicators (plasma cortisol, proteonemia plus other blood parameters-Na+, K+, glucose, pH, total CO2- and water quality were monitored. At the end of the 63-day period, resistance to infection was also studied by a nodavirus challenge. A 25-day test was performed on fish from two extreme densities (10 and 100 kg m(3)) and one intermediate density (40 kg m(3)). With regards to the different density treatments, there was no significant difference between the daily feed intake (DFI) and the specific growth rate (SGR) up to a density of 70 kg m(-3). No significant...
Tipo: Text Palavras-chave: Welfare; Performance; European sea bass; Recirculating system; Density.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/publication-6761.pdf
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Tri d'alevins de loup et de dorade au stade juvénile (0,2 - 12 g) ArchiMer
Lemarie, Gilles; Gasset, Eric.
The authors present the necessary to sort catfish and sea bream fries in order to limit cannibalism, to constitute homogeneous groups. In the same time they studied different sorters (bars sorter, grating sorter and the conception of an experimental sorter) and their effects on the juveniles (behaviour). Introduction: In hatchery, early sorting of Sea Bass or Sea Bream fry after weaning can become necessary for several reasons: a) To obtain homogeneous batches thus simplifying growing management by better controlling: - Specific water flow for precise ranges of size or weight, - Food distribution granularity, - Daily feeding rate. b) To limit cannibalism which can become high when population dispersion is spread out. This dispersion greatly increases...
Tipo: Text Palavras-chave: Pisces; Nursery ponds; Juvenile stage; Sea bream; Catfish; Fry; Pisces; Stade juvénile; Dorade; Loup; Alevin.
Ano: 1989 URL: http://archimer.ifremer.fr/doc/1989/rapport-1751.pdf
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Premiers résultats de sex-ratio, puberté et dimorphisme sexuel chez le Paraha peue (Platax orbicularis) en élevage. ArchiMer
Gasset, Eric; Joufoques, Vaiana; David, Rarahu; Maamaatuaiahutapu, Moana; Teissier, Alexandre; Tamata, Thierry; Dupieux, Sylvain.
Cette première étude du sex-ratio menée chez Platax orbicularis en élevage donne d’importantes indications dans l’optique d’optimiser la gestion des productions (1) de lots de futurs géniteurs issus d’un plan de croisement et (2) des lots d’alevins destinés à la production en cages. La poursuite du suivi des lots en cours et des nouvelles familles produites (sans tri des alevins et avec marquage magnétique individuel des poissons) permettra de confirmer sans doute ces indications et d’orienter par exemple le poids final des animaux produits par les pisciculteurs.
Tipo: Text
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00128/23878/21813.pdf
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Elevage intensif du loup Dicentrarchus labrax ArchiMer
Coves, Denis; Gasset, Eric.
Different seabass (Dicentrarchus labrax) intensiv rearing technics have been experimented in the pilot scale unit of our laboratory. During these upscalfing operation, the results obtained allow us to compare costs related to each fingemng production method. Closed system combined with early weaning with an efficient micropellet saves at least 69 % of direct production costs by comparison with an open system with Arternia during larval phase. However if closed systems are commonly used by private hatcheries, larval micropellets are always at experimental step.
Tipo: Text Palavras-chave: Production cost; Early weaning; Closed system; Intensiv; Rearing; D. Labrax; Coût de production; Sevrage précoce; Recyclage; Intensif; Elevage; D. Labrax.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/1993/rapport-1916.pdf
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Bilan de la première période d'élevage du silure glane (Silurus glanis) en condition tropicale et en circuit recyclé. (Collaboration Ifremer Palavas/Les Viviers de la Castillonne) ArchiMer
Gasset, Eric; Aubry, J.p.; Blancheton, Jean-paul.
La production Française du Silure glane stagne depuis plusieurs années pour plusieurs raisons principales: la qualité des alevins produits par les entreprises existantes n'est pas optimale, notamment pour un élevage intensif; les techniques de production extensives et semi-intensives en bassins de terre se heurtent à un profil d'évolution thermique naturelle inadapté à cette espèce d'origine continentale, ce qui ce traduit par des croissances aléatoires, des pathologies difficiles à maîtriser et une qualité de chair non optimale; les techniques intensives actuellement pratiquées ne permettent pas de produire économiquement des animaux de grande taiJJe dont la qualité de chair est optimale. L'entreprise « Les viviers de la Castillonne » maîtrise...
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Ano: 2002 URL: http://archimer.ifremer.fr/doc/00119/23007/20837.pdf
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Elevage larvaire du turbot (Scophtalmus maximus) en circuit fermé grande échelle ArchiMer
Gasset, Eric; Coves, Denis.
Tipo: Text
Ano: 1993 URL: http://archimer.ifremer.fr/doc/00279/38997/37562.pdf
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Muscle bioenergetics of two emblematic Mediterranean fish species: Sardina pilchardus and Sparus aurata ArchiMer
Teulier, Loïc; Thoral, Elisa; Queiros, Quentin; Mckenzie, David; Roussel, Damien; Dutto, Gilbert; Gasset, Eric; Bourjea, Jerome; Saraux, Claire.
We investigated links between swimming behavior and muscle bioenergetics in two emblematic Mediterranean fish species that have very different ecologies and activity levels. European sardines Sardina pilchardus are pelagic, they swim aerobically, school constantly and have high muscle fat content. Gilthead seabream Sparus aurata are bentho-pelagic, they show discontinuous spontaneous swimming patterns and store less fat in their muscle. Estimating the proportion of red and white muscle phenotypes, sardine exhibited a larger proportion of red muscle (~10% of the body mass) compared to gilthead seabream (~5% of the body mass). We firstly studied red and white muscle fiber bioenergetics, using high-resolution respirometers, showing a 4-fold higher oxidation...
Tipo: Text Palavras-chave: Red muscle; Bioenergetics; Marine fishes; Lipids.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00502/61390/65054.pdf
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Is total serum protein a good indicator for welfare in reared sea bass (Dicentrarchus labrax)? ArchiMer
Coeurdacier, Jean-luc; Dutto, Gilbert; Gasset, Eric; Blancheton, Jean-paul.
Reared sea bass were submitted to six stressful situations: hyperoxia with or without hypercapnia, increased stocking density in an open flow or recirculating system, transfer to another tank and nodavirus injection. The potentially negative impact of these factors on the lives of sea bass was investigated by measuring 9 water parameters and 19 fish parameters including total serum protein (TSP). TSP has already been used to evaluate stress. The present study investigates data of previous and new experiments, concentrating on the potential use of TSP as a routine indicator to assess welfare in sea bass reared on fish farms. In the current experiment, oxygen and carbon dioxide were seen to affect levels of TSP, but alterations were too erratic to enable...
Tipo: Text Palavras-chave: Fish stress; Fish welfare; Protein; Serum; Fish transfer; Nodavirus; Sea bass.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00043/15382/12740.pdf
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Dossier récapitulatif du développement de l’élevage du Platax orbicularis en Polynésie Française ArchiMer
Coeurdacier, Jean-luc; Gasset, Eric.
Platax orbicularis est l’espèce sur laquelle est basé le développement de la pisciculture en Polynésie française. Ce choix a été guidé par le fort potentiel économique de l’espèce dû à sa notoriété sur le marché local du poisson lagonaire estimé à 100 tonnes/an et à la diminution de sa population sauvage. Depuis 2001, date du démarrage d’un programme de développement de la pisciculture lagonaire en Polynésie, les travaux de recherche et développement menés conjointement par le Service de la Pêche de Polynésie (SPE) et l’IFREMER se sont focalisés sur l’acquisition de connaissances et de savoir-faire relatifs à la maîtrise zootechnique et sanitaire de l’élevage de ce poisson. En 2011 ce programme a atteint la première étape de transfert vers le secteur privé...
Tipo: Text
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00134/24490/22514.pdf
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Small pelagic fish dynamics: a review of mechanisms in the Gulf of Lions ArchiMer
Saraux, Claire; Van Beveren, Elisabeth; Brosset, Pablo; Queiros, Quentin; Bourdeix, Jean-herve; Dutto, Gilbert; Gasset, Eric; Jac, Cyrielle; Bonhommeau, Sylvain; Fromentin, Jean-marc.
Around 2008, an ecosystem shift occurred in the Gulf of Lions, highlighted by considerable changes in biomass and fish mean weight of its two main small pelagic fish stocks (European anchovy, Engraulis encrasicolus; European sardine, Sardina pilchardus). Surprisingly these changes did not appear to be mediated by a decrease in fish recruitment rates (which remained high) or by a high fishing pressure (exploitation rates being extremely low). Here, we review the current knowledge on the population's dynamics and its potential causes. We used an integrative ecosystem approach exploring alternative hypotheses, ranging from bottom-up to top-down control, not forgetting epizootic diseases. First, the study of multiple population characteristics highlighted a...
Tipo: Text Palavras-chave: Population dynamics; Top-down; Disease; Zooplankton; Exploited species; Bottom-up.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00427/53861/54903.pdf
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Influence of an environmental parameter in seabass (Dicentrarchus labrax L.) voluntary feed intake in intensive production system. General experimental designe illustrated by the example of water ammonia nitrogen level action ArchiMer
Coves, Denis; Gasset, Eric; Lemarie, Gilles; Dutto, Gilbert.
Tipo: Text
Ano: 1996 URL: http://archimer.ifremer.fr/doc/00317/42853/42268.pdf
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Food in the Sea: Size Also Matters for Pelagic Fish ArchiMer
Queiros, Quentin; Fromentin, Jean-marc; Gasset, Eric; Dutto, Gilbert; Huiban, Camille; Metral, Luisa; Leclerc, Lina; Schull, Quentin; Mckenzie, David; Saraux, Claire.
Small pelagic fish are key components of marine ecosystems and fisheries worldwide. Despite the absence of recruitment failure and overfishing, pelagic fisheries have been in crisis for a decade in the Western Mediterranean Sea because of a marked decline in sardine size and condition. This situation most probably results from bottom-up control and changes in the plankton community toward smaller plankton. To understand such an unusual phenomenon, we developed an original and innovative experimental approach investigating the mechanisms induced by a reduction in the quantity and size of sardine prey. While experimentations offer the unique opportunity to integrate behavior and ecophysiology in understanding key demographic processes, they remain rarely...
Tipo: Text Palavras-chave: Experimentation; Small pelagics; Sardina pilchardus; Body condition; Bottom-up control.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00505/61669/65585.pdf
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Evaluation des rejets biologiques de juvéniles de platax (Platax orbicularis) : approche méthodologique ArchiMer
Colleter, Julie; Gasset, Eric; Buchet, Vincent; Coves, Denis.
Tipo: Text
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00020/13174/10232.pdf
Registros recuperados: 28
Primeira ... 12 ... Última
 

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