Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 10
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Aquaculture en système clos : estimation des coûts de production pour l'élevage du bar et du turbot ArchiMer
Lavenant, M; Paquotte, Philippe.
Two major constraints to aquaculture have raised in most countries : the little availability of convenient sites because of the competition for the use of the coastline and the progressive implementation of regulations to reduce the impact of the farms on the environment. The technique of recirculation, widely used for hatcheries, has been developed to answer these constraints and to get free of the natural variations in order to regulate the résults. The ongrowing experimental facilities have proved good enough results to make it possible to conceive industrial projects for sea-bass and turbot. In first approach, the production costs of these systems are similar to traditional techniques but expected productivity gains due to an increase of zootechnical...
Tipo: Text Palavras-chave: Economical aspects; Production costs; Sea bass; Turbot; Marine aquaculture; Recirculation; Closed system; SEM; Aspects économiques; Coût de production; Bar; Turbot; Aquaculture marine; Système clos; Circuit fermé.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/1995/acte-4032.pdf
Imagem não selecionada

Imprime registro no formato completo
Aspects de la régulation osmotique chez le bar juvénile (Dioentrarchus labrax) en élevage et introduit dans les lagunes aménagées de Certes bassin d'Arcachon (Gironde) ArchiMer
Boeuf, Gilles; Lasserre, Pierre.
Physiological reactions of sea-basses juveniles (2-6 months) have been followed in laboratory after transfer to different salinities during Sum­mer 1976 and 1977 : hyperhaline : 41 %. , euhaline : 30 %. , mesohaline medium : 9-10 %o , and oligohaline environments : 1-3%o . A lot of fish has been acclimated ina lagoon, at Certes, to 15-20, of salinity. The evolution of gill ATPases activities (Na+ + K+ and Mg2+ ) was followed. Results show different Na+ - K+ ATPase levels, in relationship with the salinity : - at 30 and 42 %c, the level is high at the beginning of Summer (22,3 _+ 2,8 moles Pi . mg Prot -1 . h-1 decreases at the end of Summer (10,8 _+ 0,5) then increases in the fall (30,0 +_ 4,7) ; - at 10 %=, , the enzyme's activity level is steadily low,...
Tipo: Text Palavras-chave: Bar; Euryhalinité; ATPases; Régulation osmotique.; Sea-bass; Euryhalinity; ATPases; Osmotic regulation.
Ano: 1979 URL: http://archimer.ifremer.fr/doc/00306/41686/40895.pdf
Imagem não selecionada

Imprime registro no formato completo
Effet du taux et de la nature des lipides alimentaires sur les mécanismes intervenant dans la constitution des dépôts lipidiques (transport, captage, synthèse) chez la truite arc-en-ciel et le bar ArchiMer
Richard, Nadège.
Replacement of dietary fish oil by a blend of vegetable oils for more than a year does not affect growth, hepatic lipogenesis and tissue lipid uptake in rainbow trout and European seabass. However, this replacement decreases plasma cholesterol level in both species and LDL amount in rainbow trout. Such replacement does not affect muscle lipid content of fish but modifies fatty acid composition of fish flesh which reflects in most part that of dietary lipid source. Increasing dietary lipid level inhibits hepatic lipogenesis but does not modify tissue lipid uptake in seabass and in two trout lines selected for muscle lipid level. In seabass, dietary lipid level had a lower impact on growth and lipid metabolism than rearing temperature. In this species,...
Tipo: Text Palavras-chave: Seabass; Rainbow trout; Lipoproteins; Lipoprotein lipase; Lipogenesis; Dietary lipid; Truite arc en ciel; Lipoprotéine lipase; Lipoprotéines; Lipogenèse; Lipides alimentaires; Bar.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/these-2297.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude d'un élevage intégré bars-huîtres ArchiMer
Buchet, Vincent; Bluteau, A.
Whatever the hydraulic gestion, an épuration of the fishes sewages is possible with the integrated system studied. The main action is situed in the intermediary pond with a significant decrease of nutrients, especially ammonia, and particulate mineral matters. The oyster's pond have no significant action on nutrients, but their action is real on chlorophyll which become limiting factor in 20% renewal system. One of the effluent, system 1 (renewal 10%) had high suspended matter and low nutrient concentrations. The other (renewal 20%) was poor in supcnded matters (chlorophyll). The system 2 give best oyster's growth, close to traditional nursery performances, with an highest mortality (32%). In the first system, suspended matter concentrations are too high...
Tipo: Text Palavras-chave: Valorization; Oyster; Pre ongrowing; Seabass; Integrated rearing; Valorisation; Huître; Prégrossissement; Bar; Elevage intégré.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/1996/rapport-1917.pdf
Imagem não selecionada

Imprime registro no formato completo
La pisciculture marine : un secteur industriel en émergence ArchiMer
Paquotte, Philippe; Harache, Yves.
In a general context of low progression, European aquaculture has been characterized by the development of intensive fish farming. The most notable fact is the recent increase in intensive salmonid farming, with a turnover of almost two million ECU. More recently, the intensive farming of sea bass and sea bream has increased very rapidly in the Mediterranean Basin, although on a more reduced extent. Although research has started as soon as the seventies with a strong public incentive both for salmon, sea bass and sea bream, the development of these different types of aquaculture has not been done at the same pace. Some elements of sectorial dynamics are analysed such as research planning and financing, organization of the production and public policy. For...
Tipo: Text Palavras-chave: Europe; Environmental protection; Economic development; Production structure markets; Saltwater fishes; Sea bream; Sea bass; Atlantic salmon; Marine environment; Fish culture; SEM; Europe; Protection de l'environnement; Développement économique; Marché; Structure de production; Poisson de mer; Dorade; Bar; Saumon atlantique; Milieu marin; Pisciculture.
Ano: 1996 URL: http://archimer.ifremer.fr/doc/1996/publication-4104.pdf
Imagem não selecionada

Imprime registro no formato completo
Orientation des processus métaboliques chez les juvéniles de bar européen (Dicentrarchus labrax) par un conditionnement au stade larvaire ArchiMer
Vagner, Marie.
Worldwide supplies of fish oils and meals have reached their sustainable limits, forcing industries to look for alternative lipid sources for use in marine fish diets. As terrestrial animal products are prohibited, there is great interest in aquaculture to produce fish better able to utilise vegetable feedstuffs. Vegetable products are rich in 18 carbon fatty acids (C18 FA) but do not contain C20-22 n-3 highly unsaturated fatty acids (n-3 HUFA), such as ecosapentaenoic (EPA; 20:5n-3) and docosahexaenoic acids (DHA; 22:6n-3). The aim of this study was to know if it would be possible to apply a metabolic programming using nutritional conditioning during early larval stages, as already described in mammals, in order to stimulate the FA desaturation pathways...
Tipo: Text Palavras-chave: Aquaculture; Delta 6 desaturase; Metabolic programming; N 3 HUFA; Dicentrarchus labrax; Seabass; Aquaculture; Delta 6 désaturase; Programmation métabolique; HUFA n 3; Dicentrarchus labrax; Bar.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/these-6244.pdf
Imagem não selecionada

Imprime registro no formato completo
Origine, devenir et contrôle de la matière particulaire dans les élevages de poissons marins en système recyclé ArchiMer
Franco, Miguel.
The particulate matter plays an essential role in the functioning of recirculating aquaculture systems (RAS). Rich in organic substances, it provides ideal conditions for the bacterial development, which contribute to its mineralization. The understanding of interactions between the bio-geochemical cycles of carbon and nitrogen in these processes is necessary to define an effective and adapted management of aquaculture facilities. A methodology using natural stable isotopes (13C and 15N) and elemental carbon and nitrogen analysis on particulate matter, allows to identify its sources and to quantify its fluxes. Applying this methodology, we found an enrichment of 13C in dorsal muscle of reared fish and non differences of 13C in fish liver compared to the...
Tipo: Text Palavras-chave: Nitrogen; Carbon; Isotopes; Organic matter; Particulate matter; Dicentrarchus labrax; Seabass; Recirculating systems; Aquaculture; Azote; Carbone; Isotopes; Matière organique; Matière particulaire; Dicentrarchus labrax; Bar; Système de recirculation; Aquaculture.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/these-322.pdf
Imagem não selecionada

Imprime registro no formato completo
Production de juvéniles de bar (Dicentrarchus labrax) en marais. Etude de trois séquences alimentaires de sevrage ArchiMer
Buchet, Vincent; Palvadeau, Hubert; Boussard, O..
Trials on the seabass weaning in atlantic marshes (Roux, 1993), have shown that the use of frozen prey improved this step and reduced his resulting stress. During the present study, which must confirmed these preliminary results, three alimentary sequences were tested. 1) natural zooplankton, weaning pellets, as control, 2) natural zooplankton, inert artemia (intensively produced), weaning pellets, 3) natural zooplankton, natural frozen zooplankton (harvested), weaning pellets. The achieved results show that weaning with intermediary phases (sequences 2 or 3) yield best results. Furthermore the phase with artemia yields, systematically, better results than with harvested zooplankton ; then artemia seems a excellent substitute food representing a...
Tipo: Text Palavras-chave: Bar; Dicentrarchus labrax; Juvéniles; Elevage extérieur; Sevrage; Artémias; Zooplancton; Seabass; Dicentrarchus labrax; Juvenile; Outdoor rearing; Weaning; Artemia; Zooplankton.
Ano: 1995 URL: http://archimer.ifremer.fr/doc/00425/53683/54527.pdf
Imagem não selecionada

Imprime registro no formato completo
Typology of individual growth in sea bass (Dicentrarchus labrax) ArchiMer
Gardeur, J; Lemarie, Gilles; Coves, Denis; Boujard, Thierry.
The individual growth variability of passive integrated transponder tagged sea bass was studied using data sets from two different experiments. In experiment 1 (n = 485), fish submitted to different photoperiod regimes were held in fourteen groups of individual weight of 88 ± 13 g (mean ± SD). In experiment 2 (n = 748, initial weight 243 ± 30 g) fish were held in fifteen groups and had either free or restricted access to diets with three lipid levels. After adjustment for treatment and tank effects, individual growth curves were analysed using multivariate analysis (principal component analysis and clustering) and were modelled using the summary statistics technique. Different growth profiles where characterized. All of them appeared to be curvilinear....
Tipo: Text Palavras-chave: Variability; Typology; Sea bass; Modelling; Growth curves; Variabilité; Typologie; Bar; Modélisation; Courbes de croissance.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/publication-548.pdf
Imagem não selecionada

Imprime registro no formato completo
Utilisation de données concentrées au niveau des criées pour l'évaluation de la production des navires de pêche artisanale côtière ArchiMer
Gondeaux, Evelyne; Durand, Jean-louis; Flores, Domingo.
L'évaluation des quantités débarquées en pêche artisanale a toujours constitué un problème important. L'élaboration d'une base de données fiable améliorerait grandement l'appréhension de ce secteur économique en grande partie informel. Ce document est une contribution à la mise au point d'une méthode d'estimation des débarquements des navires de petite pêche. L'utilisation de données concentrées au niveau des criées à été privilégiée. Ce choix s'explique par deux raisons. D'une part il est ainsi possible de valoriser une quantité non négligeable des données archivées, et de faire un bilan de l'acquis. D'autre part, la méthode proposée permet de limiter l'utilisation de stratégies d'échantillonnage coûteuses aux fractions de la flottille qui n'utilisent...
Tipo: Text Palavras-chave: North East Atlantic; Brittanny; Eel; Conger; Bass; Coastal fishing; Fishing effort; Auction sales data; SEM; Mor Braz; Brittany; Congre; Bar; Pêche côtière; Effort pêche.
Ano: 1987 URL: http://archimer.ifremer.fr/doc/1987/rapport-2193.pdf
Registros recuperados: 10
Primeira ... 1 ... Última
 

Empresa Brasileira de Pesquisa Agropecuária - Embrapa
Todos os direitos reservados, conforme Lei n° 9.610
Política de Privacidade
Área restrita

Embrapa
Parque Estação Biológica - PqEB s/n°
Brasília, DF - Brasil - CEP 70770-901
Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco

Valid HTML 4.01 Transitional