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| Mellon-duval, Capucine; De Pontual, Helene; Metral, Luisa; Quemener, Loic. |
| Growth of European hake was estimated from the results of a conventional tagging study in the Gulf of Lions, the first tagging experiment to have been undertaken on the species in Mediterranean waters. In all, 4277 hake 15–40 cm long were tagged and released on the inshore fishing grounds during spring 2006. The overall recapture rate was 6.5% and times-at-liberty ranged from 1 to 717 d. Growth rate in hake varied with size and sex. The estimated growth parameter (von Bertalanffy k) was estimated as double previously published values based on size frequency distribution in the area. Compared with recent growth parameters derived from the tagging experiments in the Bay of Biscay, k was estimated to be slightly lower in the Gulf of Lions. With this faster... |
| Tipo: Text |
Palavras-chave: Age estimation; European hake; Growth; Mediterranean; Tagging. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00000/11134/11532.pdf |
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| Mellon-duval, Capucine. |
| Les aménagements en récifs artificiels du Languedoc Roussillon ont été réalisés à la fin de l'année 1985. Le programme de recherche qui avait été mis en place dès 1984 se conclura fin 1988. Aux cours des trois années écoulées, ce programme a consisté à mettre au point une méthodologie d'approche de l'impact des récifs artificiels. L'équipe constituée de sept personnes dont quatre enquêteurs, a permis de réunir une quantité appréciable de données concernant les périodes pré et post-immersions. Un premier document établi en 1985 décrit les sites d'aménagement, détaille la méthodologie du suivi et établit un bilan biologique succinct basé sur un an et demi de données obtenues avant les immersions des structures (DUVAL et DUCLERC, 1985). Le présent document... |
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| Ano: 1987 |
URL: http://archimer.ifremer.fr/doc/00003/11417/7960.pdf |
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| Bodiguel, Xavier; Loizeau, Veronique; Le Guellec, Anne-marie; Roupsard, Francois; Philippon, Xavier; Mellon-duval, Capucine. |
| The main objective of this work was to establish the influence of sex, maturity and reproduction on the contamination of the demersal fish Merluccius merluccius by organochlorine compounds. Polychlorinated biphenyls (PCBs) and p,p'DDE were quantified in muscle, liver and gonads of female and male hakes collected in the Gulf of Lions in 2004 and 2005. Observed levels appeared higher than the population of the Bay of Biscay and lower than the population of the Thyrrenian Sea. Contaminant fingerprints were roughly constant whatever the studied organ and the hake biological condition. Concentrations varied significantly according to the sex and maturity of hakes. Mature specimens were more contaminated than immature, and males presented higher levels than... |
| Tipo: Text |
Palavras-chave: Bioaccumulation PCBs p; P ' DDE Merluccius merluccius Demersal fish Mediterranean Sea. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/00000/11129/9317.pdf |
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| Lefevre, Jean-robert; Mellon-duval, Capucine; Ragazzi, Monique; Duclerc, Jean. |
| Ce travail consiste en une analyse et un classement des textes traitant des récifs artificiels et porte sur 792 publications. Les documents consultés présentent des niveaux d'intérêt très divers, seulement un petit nombre de ces documents peut être considéré comme fondamental ; en revanche, la majorité d'entre eux n'aborde ce sujet que de façon superficielle et se limite souvent à la répétition d'ouvrages antérieurs. Toute indication quant à la valeur relative de chaque article a été volontairement évitée, de manière à laisser aux lecteurs l'entière liberté d'appréciation selon le domaine dans lequel ils se sentent concernés. Le souci de centrer ce travail sur les aménagements récifaux artificiels proprement dits a conduit à éliminer les documents ne se... |
| Tipo: Text |
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| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/00003/11418/7961.pdf |
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| Harmelin Vivien, M; Loizeau, Veronique; Mellon-duval, Capucine; Beker, B; Arlhac, D; Bodiguel, Xavier; Ferraton, Franck; Hermand, R; Philippon, Xavier; Salen Picard, C. |
| Carbon and nitrogen stable isotope ratios of particulate organic matter (POM) in surface water and 63-200 mu m-sized microphytoplankton collected at the fluorescence maximum were studied in four sites in the Gulf of Lions (NW Mediterranean), a marine area influenced by the Rhone River inputs, in May and November 2004. Some environmental (temperature, salinity) and biological (POM, Chlorophyll a and phaeopigments contents, phytoplankton biomass and composition) parameters were also analysed. Significantly different C and N isotopic signatures between surface water POM and microphytoplankton were recorded in all sites and seasons. Surface water POM presented systematically lower delta C-13 (similar to 4.2 parts per thousand) and higher delta N-15 (similar to... |
| Tipo: Text |
Palavras-chave: Seasonal variation; PON/Chl a; C/N ratio; Stable isotopes; Fluorescence maximum; Phytoplankton composition; Particulate organic matter. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-5919.pdf |
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| Bodiguel, Xavier; Maury, Olivier; Mellon-duval, Capucine; Roupsard, Francois; Le Guellec, Anne-marie; Loizeau, Veronique. |
| Bioaccumulation is difficult to document because responses differ among chemical compounds, with environmental conditions, and physiological processes characteristic of each species. We use a mechanistic model, based on the Dynamic Energy Budget (DEB) theory, to take into account this complexity and study factors impacting accumulation of organic pollutants in fish through ontogeny. The bioaccumulation model proposed is a comprehensive approach that relates evolution of hake PCB contamination to physiological information about the fish, such as diet, metabolism, reserve and reproduction status. The species studied is the European hake (Merluccius merluccius, L. 1758). The model is applied to study the total concentration and the lipid normalised... |
| Tipo: Text |
Palavras-chave: Dynamic Energy Budget (DEB) Bioaccumulation model; Bioenergetic Polychlorinated biphenyls (PCB) Demersal fish Merluccius merluccius. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6789.pdf |
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