Consulta: subjectFacets:"Pollack"
Registros recuperados: 5
Data/hora: 10/06/2024 10:22:17

Développement d’un cadre Bayésien pour l’évaluation de stocks à données limitées et élaboration de scénarios de gestion, cas particuliers de la seiche (Sepia officinalis) et du lieu jaune (Pollachius pollachius)
Provedor de dados: 5
Autores: Alemany, Juliette.
The assessment and the management of sh stocks aim at achieving a sustainable exploitation of the resources provided by the oceans. While progress have been made in this eld for some stocks of great commercial importance, the situation is di erent for the so-called "data limited" stocks. Often historically less exploited, these stocks do not  benefit from the same economical resources nor workforce to conduct the stock assessments required to set management measures. This work is based on two case studies, pollack (Pollachius pollachius) and cuttlefish (Sepia officinalis). The aim is to investigate the stock assessment methods adapted to data-limited situations. A first introductive part presents the background of fish stock assessment as well as the two...
Tipo: Text
Palavras-chave: Stock a donnees limitees; Evaluation de stock; Avis de gestion; Modele Bayesien; Pollachius pollachius; Lieu jaune; Sepia officinalis; Seiche; Data-limited stock; Stock assessment; Management advice; Bayesian model; Pollachius pollachius; Pollack; Sepia officinalis; Cuttlefish.
Ano: 2017
URL: http://archimer.ifremer.fr/doc/00411/52227/52953.pdf

Effects of temperature on the growth of pollack (Pollachius pollachius) juveniles
Provedor de dados: 5
Autores: Person, Jeannine; Buchet, Vincent; Vincent, Benoit; Le Delliou, Herve; Quemener, Loic.
Growth of juvenile pollack was assessed at five constant temperatures (9, 12, 15, 18 and 21 degrees C) in an 84-day trial. Duplicate groups of 75 fish (initial weight 143 +/- 2 g) were held in O-2 saturated water (102-103% saturation) and fed to apparent satiation. Growth increased as temperature increased from 9 degrees C up to a plateau at 12-15 degrees C (NS differences between 12 and 15 degrees C) followed by a decrease from 18 degrees C. No growth occurred at 21 degrees C. For the overall period, specific growth rates were 0.52% and 0.53% day(-1) at 12 and 15 degrees C compared to 0.40% day(-1) at 18 degrees C. Feed intake was maximum at 15-18 degrees C (0.68-0.69% day(-1)) and it was significantly lower at 21 degrees C (0.45% day(-1)). Apparent feed...
Tipo: Text
Palavras-chave: Feed efficiency; Growth; Temperature; Pollack.
Ano: 2006
URL: http://archimer.ifremer.fr/doc/2006/publication-1122.pdf

ROMELIGO. Amélioration des connaissances halieutiques du ROuget-barbet, du MErlan et du LIeu jaune du GOlfe de Gascogne
Provedor de dados: 5
Autores: Leaute, Jean-pierre; Caill-milly, Nathalie; Lissardy, Muriel; Bru, Noelle; Dutertre, Marie-adele; Saguet, Cassandre.
The stocks of whiting (Merlangius merlangus), pollack (Pollachius pollachius) and striped red mullet (Mullus surmuletus), are considered by ICES as Data Limited Stocks (DLS) for the Bay of Biscay areas, those bordering the Iberian Peninsula as well as the Celtic Sea for red mullet. In the case of insufficient data for an analytical assessment, ICES has recommended, for 2013 and 2014, to precautionarily reduce landings by 20 % compared to the period 2009-2011 for these 3 stocks. In order to improve knowledge to fill the gaps in the status of these stocks, and to extract them from the DLS category, the ROMELIGO project has: i) analyzed available data on both catches and professional fishing activity, Captures per Unit of Effort (CPUE) to identify reference...
Tipo: Text
Palavras-chave: Merlan; Lieu jaune; Rouget barbet de roche; Golfe de Gascogne; CPUE; Flottille de pêche; Paramètres biologiques; Whiting; Pollack; Striped red mullet; Bay of Biscay; CPUE; Fishing fleet; Biological parameters.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00440/55126/56584.pdf

Effect of water temperature on individual reproductive activity of pollack (Pollachius pollachius)
Provedor de dados: 5
Autores: Suquet, Marc; Normant, Yvon; Gaignon, Jean-louis; Quemener, Loic; Fauvel, Christian.
The effects of water temperature on pollack (Pollachius pollachius) spawning features were individually assessed. During the spawning period, nine fish sets, each composed of one female and two males (mean body weight: 2.5+/-1.0 kg), were placed in small-volume tanks (2 m(3)). Fish sets were held at 8, 10, or 12 degreesC (n=3 for each temperature).   Three females released eggs at 8 and 10 degreesC, while only two spawned at 12 degreesC. One hundred thirty-one individual spawns were collected from the eight spawning fish sets. The number of spawns collected per female was significantly lower at 12 degreesC (3.0+/-3.6), compared to 10 degreesC (17.3+/-10.1) and 8 degreesC (23.3+/-2.5). Egg number (eggs kg(-1) BW) was significantly lowered at 12 degreesC...
Tipo: Text
Palavras-chave: Egg quality; Temperature; Reproduction; Pollachius pollachius; Pollack; Gadoids.
Ano: 2005
URL: http://archimer.ifremer.fr/doc/2005/publication-470.pdf

Ressources halieutiques hors quotas du Nord Est Atlantique : bilan des connaissances et analyse de  scénarios d'évolution de la gestion
Provedor de dados: 5
Autores: Forest, Andre.
Part of the resources caught in the North Sea, Channel or Atlantic Sea do not fall under the « TAC and Quotas » strand of the Common Fisheries Policy, but the European Union may propose that such measures may eventually be applied to them. Usually these resources do not undergo regular assessments. This study focuses on « ex quota » stocks fished by French fleets, in order to assess knowledge concerning them and analyse possible trends in their management. It was contracted with funding from the Maritime fisheries and aquaculture directorate. Thirty-four species in all were chosen with respect to their interest for French fleets and the probability of Europe's adopting supplementary management measures for them. Available data is sometimes patchy (or not...
Tipo: Text
Palavras-chave: Seiche; Sikis; Tacaud commun; Requin taupe; Tourteau Grondin rouge; Sardine Grenadier de roche; Sabre noir Germon; Rouget barbet Empereur; Raie bouclée Dorade grise; Raie fleurie Calmar; Petite roussette Turbot; Merlan Barbue; Lingue bleue Bar; Lieu jaune Araignée de mer; Homard Gascogne Manche Biologie Evaluation de stocks Gestion Edible Crab Gulper Sharks And Dogfish; Bib; Porbeagle Red Mullet; Black Scabbard Fish; Sardine; Cuttlefish Lesser Spotted Dogfish; Cuckoo Ray; Thornback Ray Red Gurnard; Lobster; Pollack; Blue Ling; Whiting Black Bream; Orange Roughy; Albacore Tuna; Round Nose Grenadier Sea Bass; Brill; Turbot; Squid Channel; Biscay; Spider Crag Biology Stock assessment Management.
Ano: 2001
URL: https://archimer.ifremer.fr/doc/2001/rapport-1201.pdf