Sabiia Seb
PortuguêsEspañolEnglish
Embrapa
        Busca avançada

Botão Atualizar


Botão Atualizar

Ordenar por: RelevânciaAutorTítuloAnoImprime registros no formato resumido
Registros recuperados: 12
Primeira ... 1 ... Última
Imagem não selecionada

Imprime registro no formato completo
Comment épargner les juvéniles de soles et de gadidés dans la pêcherie crevettière : expériences de chalut sélectif en baie de Vilaine, première partie ArchiMer
Dupouy, Herve; Vacherot, Jean-philippe; Meillat, Marc.
The French brown shrimp (Crangon crangon) fishery employs on a seasonal basis around 140 ships about 10 metres in length and with engines of about 100 kilowatts of power. It takes place mainly along the coastal bottoms of silted-up sand at a depth of 2 to 10 metres and occupies principally the coasts of the eastern English Channel and those of the Gulf of Gascony. The brown shrimp catch is performed by bottom trawl, with exempted meshing of 20 mm (stretched mesh), which causes numerous rejects of immature fish that live on the same bottoms. The main part of these juveniles is made up of flat fish (sole, in particular) and of gadidae (whiting and pout). To reduce these undesirable catches that are also detrimental to other fisheries, some ingenious...
Tipo: Text Palavras-chave: Selective trawl; Devisme trawl; Asselin trawl; Brittany; Bay of Vilaine; Gadides; Sole; Whiting; Pout; Juvenile; Chalut devisme; Chalut Asselin; Chalut sélectif; Baie de Vilaine; Gadidés; Soles; Merlan; Tacaud; Juvéniles.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/rapport-2669.pdf
Imagem não selecionada

Imprime registro no formato completo
Comment épargner les juvéniles de soles et de gadidés dans la pêcherie de crevette grise, Deuxième partie ArchiMer
Vacherot, Jean-philippe; Dupouy, Herve; Meillat, Marc.
Starting from the year 2000, the European Union planned to establish the use of a selective trawl in brown shrimp (Crangon crangon) fisheries. In fact, the brown shrimp is caught by a bottom trawl equipped with stretched 20 mm exempted meshing in estuary areas where the nurseries of flat fish and gadidae are located. For Vilaine's estuary, Dupouy et al (1997) estimated at about 1 tonne of flat fish and one tonne of gadidae the loss in equivalent fish of marketable size, per landed tonne of brown shrimp. In this document, the authors introduce improvements resulting from the use of selective trawls developed in France (Asselin and Devismes trawls), and they show by what means the selectivity of these trawls can be improved further.
Tipo: Text Palavras-chave: Bay of Vilaine; Common shrimp; Selective trawl; Whiting; Pout; Gadides; Soles; Juveniles; Baie de Vilaine; Crevette grise; Chalut sélectif; Merlan; Tacaud; Gadidés; Soles; Juvéniles.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/1998/rapport-2670.pdf
Imagem não selecionada

Imprime registro no formato completo
Écologie trophique des juvéniles de merlu (Merluccius merluccius) dans le golfe du Lion : Implications biologiques de la variabilité spatio-temporelle des ressources alimentaires exploitées dans les zones de nourricerie ArchiMer
Ferraton, Franck.
European hake (Merluccius merluccius) is a commercial and ecological important species in the Gulf of Lions. Juveniles are mainly located on the continental shelf, and abundance of smaller individuals (< 15 cm) is highest during spring in deeper areas principally. Juvenile hake (5 to 24 cm) density, relative condition factor, food resources and food web structure were investigated in four locations of the continental shelf (distributed with depth : shallow-deep, and distance from the Rhone river mouth : Rhone-Agde) during three springs (2002-2003-2004). Changes of food resources were identified with hake length, spatio-temporal variations were also observed for smaller juveniles (< 15 cm). Despite of hake prey diversity, the same organic source is at...
Tipo: Text Palavras-chave: Zone de nourricerie; Réseau trophique; Isotopes stables; Facteur de condition relative; Ressources alimentaires; Juvéniles; Merluccius merluccius; Golfe du Lion.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-4196.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude de la production de juvéniles de saumon atlantique (Salmo salar). II - Influence de la densité sur l'alevinage. Campagne 1980-1981 Pisciculture du Quinquis ArchiMer
Gaignon, Jean-louis; Prouzet, Patrick.
Les résultats de la campagne 1979-1980 ont montré la nécessité d'améliorer les performances de l'alevinage pour obtenir des résultats de production intéressants en cycle ouvert dans les conditions bretonnes. En effet, une augmentation du taux de smoltification à un an ne semble pouvoir être obtenue dans des conditions économiquement intéressantes (Charge très supérieure à 2 kg/m2), qu'à condition que la taille des tacons soit au moins égale à 6-7 cm en septembre de la première année. En conséquence, l'objectif expérimental de la saison 1980-1981 est de déterminer les conditions d'élevage qui puissent permettre d'obtenir un population homogène ayant une bonne croissance c'est-à-dire très supérieure à celle obtenue en 79-80....
Tipo: Text Palavras-chave: Aquaculture; Pisciculture; Production; Juvéniles; Salmo salar; Densité.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/00143/25381/23519.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude des bases génétiques de la mortalité estivale et des relations avec la croissance chez les juvéniles de l'huître creuse Crassostrea gigas ArchiMer
Degremont, Lionel.
In order to study genetic variability for survival during summer mortality events in the oyster Crassostrea gigas, a first generation (G1) was bred in 2001. 17 G1 half-sib families (HSF) were obtained ; each HSF was reared in three sites along the French coast during the summer period. Significant differences in survival were observed among HSF indicating a genetic basis for survival. In 2002, several HSF were selected on their survival performances to constitute a divergent selection (G2) (outbreed and inbred). Significant differences in survival were found among these offspring of the 'high' and 'low' selected groups in several laboratory experiments and in all sites. Growth performance was not influenced by selection on survival. This confirms the...
Tipo: Text Palavras-chave: Juvenile; Genetic; Growth; Summer mortality; Crassostrea gigas; Juvéniles; Héritabilité; Rendement; Croissance; Mortalités estivales; Crassostrea gigas.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/these-202.pdf
Imagem não selecionada

Imprime registro no formato completo
Etude des facteurs physiques, chimiques et biologiques potentiellement responsables de mortalités estivales de juvéniles d' huîtres creuses, Crassostrea gigas, en rivière d'Auray de 1995 à 1997 ArchiMer
Kuntz, Grégoire.
Depuis le début des années 1990, se sont étendues sur le littoral français des mortalités estivales touchant les juvéniles de l'huître creuse, Crassostrea gigas. La rivière d'Auray est un secteur d'élevage conchylicole particulièrement affecté par ce phénomène. Une enquête menée sur trois années (1995 à 1997) tente de dresser le bilan de ces mortalités et d'identifier les facteurs responsables. Au cours de l'été 1997 différents suivis environnementaux (phytoplancton, physicochimie, .. . ), physiologiques (croissance, maturation, ... ) et pathologiques (histologie,PCR, ... ) ont été menés afin d'avoir une  approche la plus large possible des différents facteurs potentiellement impliqués lors de ces mortalités.
Tipo: Text Palavras-chave: Mortalité; Maladie; Juvéniles; Crassostrea gigas; Rivière d'Auray; Bretagne.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/00426/53728/54604.pdf
Imagem não selecionada

Imprime registro no formato completo
La Lettre du CNROP OceanDocs
IMROP.
Sommaire: Mot du directeur - La ZEE mauritanniene - La mise aux normes sanitaires des produits et établissements de pêche en Mauritanie - La préservation des juvéniles de poulpe - La page statistique - Vie du CNROP
Tipo: Other Palavras-chave: Octopus; Fisheries resources; Normes sanitaires; Juvéniles; Ressources halieutiques; Poulpe; CNROP; Produits de la pêche; Fishery products; Sanitary engineering; Octopus fisheries; Fishery statistics.
Ano: 1999 URL: http://hdl.handle.net/1834/258
Imagem não selecionada

Imprime registro no formato completo
Le merlu du golfe de Gascogne et de la mer Celtique : Croissance, Répartition spatiale et bathymétrique, Ecologie alimentaire et Assemblages ArchiMer
Kacher, Mohamed.
In the Bay of Biscay and Celtic Sea waters, hake is considered as genetically homogeneous and form a unique stock with identical meristic characteristics. The vertebral mean vary from 50,68 (vertebrae) during the first year of life to 51,11 (vertebrae) for adults. 0-group Merluccius display a rapid growth with significant interannual variability (0.71 mm.day-1 in 2001 versus 0.74 mm.day-1 in 2002). The spawning period occurs in April and the average length on the firth January following the hatching is of 17.3 cm (first seasonal check / increment on the sagittal otolith is located about 0.143 cm from the nucleus). At the end of the first year of life the average length is about 24 cm. The longevity of the species is important and growth parameters (L =...
Tipo: Text Palavras-chave: Celtic sea; Bay of biscay; Ecologie; Juvéniles; Otolith; Growth; Assemblages; Hake; Mer celtique; Golfe de Gascogne; Ecologie; Juvéniles; Otolithe; Croissance; Assemblages; Merlu.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/these-1247.pdf
Imagem não selecionada

Imprime registro no formato completo
Modélisation biophysique pour la prévision du recrutement ArchiMer
Allain, Gwenhael.
Exploited fish populations are dependent on recruitment (i.e. size of the new year class) to sustain their abundance. Recruitment variations are related to hydroclimatic variations and may accentuate the detrimental effects of fishing. Recruitment prediction requires accurate fisheries oceanographic tools, which are expected to be more reliable than large-scale correlation analyses between fish abundance and climate variables. Recruitment is the result of the integration over a season and large oceanic areas of processes affecting larval survival, which are dependent on small-scale mechanisms. Hydrodynamic models are a tool to perform this integration. This thesis aims at exploring and modelling physical-biological interaction mechanisms in order to...
Tipo: Text Palavras-chave: Anchovy; Upwelling; Turbulence; Retention; Fisheries management; Population dynamics; Stock environment interaction; Stock recruitment relation; Scale integration; Individual based models; Survival; Growth; Otolith; Physical biological interactions; Prediction; Recruitment; Turbulence; Rétention; Méso échelle; Intégration des échelles; Modèle de survie; Modèle de ponte; Modèles individu centrés; Modèles de corrélation; Modèles stochastiques; Juvéniles; Larves; Otolithe; Modèle de croissance; Interactions physique biologie; Prévision; Recrutement.
Ano: 2004 URL: http://archimer.ifremer.fr/doc/2004/these-5.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
Rapport de la campagne SOLPER 1 (26 août – 2 septembre 2005) ArchiMer
Leaute, Jean-pierre.
To estimate the size and abundance distribution of juvenile sole (Solea solea) of nurseries in the Pertuis charentais (France) in 2005, a small beam trawl of 2 m wide and 8 mm stretched mesh was used over a hundred sampling points. The other fish catches have also been recorded.
Tipo: Text Palavras-chave: Pertuis charentais; Chalut à perche; Nourricerie; Sole commune; Solea solea; Juvéniles; Taille; Abondance; Pertuis charentais (France); Beam trawl; Nursery; Juvenile sole; Solea solea; Length; Abundance.
Ano: 2006
Imagem não selecionada

Imprime registro no formato completo
Rapport de la campagne SOLPER 2 (28 août – 2 septembre 2006) ArchiMer
Leaute, Jean-pierre.
To estimate the size, age and abundance distribution of juvenile sole (Solea solea) of nurseries in the Pertuis charentais (France) in 2006, a small beam trawl of 2 m wide and 8 mm stretched mesh was used over a hundred sampling points. The other fish catches have also been recorded and water temperatures measured.
Tipo: Text Palavras-chave: Pertuis charentais; Chalut à perche; Nourricerie; Sole commune; Solea solea; Juvéniles; Taille; Abondance; Âge; Pertuis charentais (France); Beam trawl; Nursery; Juvenile sole; Solea solea; Length; Abundance; Âge.
Ano: 2007
Registros recuperados: 12
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