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| Registros recuperados: 54 | |
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| Guyader, Olivier; Robert, Bauer; Reynal, Lionel. |
| Moored fish aggregating devices (MFADs) are increasingly being used in small-scale tropical fisheries to access pelagic fish species that are otherwise difficult to harvest in large numbers. Little attention has yet been paid to monitoring MFADs in coastal areas, however. This is most likely due to the small-scale nature of most fisheries that utilize them and the presumed lower impact of those fisheries on fish stocks and their ecosystems. In this paper, we examined the abundance and density of MFADs around Guadeloupe, using aerial line transect surveys. Estimated MFAD densities were found to be high compared with previously reported densities in this area, especially within the 22–45 km range offshore. We examine and discuss possible reasons for these... |
| Tipo: Text |
Palavras-chave: Small-scale fisheries management; Dolphinfish; Yellowfin tuna; Aerial survey; Fish aggregating devices (FAD). |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00355/46605/46727.pdf |
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| Dromard, Charlotte; Bodiguel, Xavier; Lemoine, Soazig; Bouchon-navaro, Yolande; Reynal, Lionel; Thouard, Emmanuel; Bouchon, Claude. |
| Chlordecone is an organochlorine pesticide, used in the Lesser Antilles from 1972 to 1993 to fight against a banana weevil. That molecule is very persistent in the natural environment and ends up in the sea with runoff waters. From 2003 to 2013, seven campaigns of samplings have been conducted to evaluate the level of contamination of fish, crustaceans, and mollusks. The present study is the first assessment and the first comparison of the concentrations of chlordecone between marine areas, taxonomic groups, and ecological factors like trophic groups or preferential habitat of fish species. The four most contaminated marine areas are located downstream the contaminated rivers and banana plantations. Crustaceans seemed to be more sensitive to the... |
| Tipo: Text |
Palavras-chave: Chlordecone; Organochlorine pollution; Marine fauna; Contamination; Guadeloupe; Martinique. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00309/41989/41379.pdf |
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| Bertrand, Jacques; Guyader, Olivier; Reynal, Lionel. |
| In the French West Indies islands, the transfer of chlordecone (kepone) from treated grounds towards the marine environment has been proved since the beginning of 2000s. In 2008, a maximal residue limit (MRL) was set at 20 µg / kg wet weight in fish and seafood, and therefore intensified the concern about the risks of high human exposure to the pesticide due to the consumption of contaminated marine products. To answer this concern, several sampling cruises were carried by public authorities and by Ifremer in order to analyze the contamination of the fish fauna around the Guadeloupe island. The data collected within these surveys improved our knowledge on the characteristics of the contamination of fish fauna and allowed to assess the distribution of this... |
| Tipo: Text |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00136/24762/22840.pdf |
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| Bertrand, Jacques; Bodiguel, Xavier; Abarnou, Alain; Reynal, Lionel; Bocquene, Gilles. |
| Chlordecone is a very persistent insecticide used in banana plantations of the French West Indies between 1972 and 1993. Chlordecone residues were found in inland water, in agricultural and freshwater products, and in marine organisms. This pollution has become of great concern in 2007. Therefore, a governmental action Plan was launched to better assess the pollution and to improve the consumer’s protection. Within this plan, 1048 samples from 69 different species of marine fishes and crustaceans were collected all around both the Guadeloupe and the Martinique Islands and analyzed. The results confirm the presence of chlordecone in marine organisms, with highly variable concentrations (from the detection limit to 1000 μg.kg-1). In 17.9 % of the samples,... |
| Tipo: Text |
Palavras-chave: Chlordecone (Kepone); French West Indies; Fishes; Crustaceans; Organochlorinated contaminant; Risk assessment; Pollution management. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00014/12511/9361.pdf |
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| Blanchard, Fabian; Guyader, Olivier; Roos, David; Reynal, Lionel; Weiss, Jerome. |
| Ce rapport est une réponse à la saisine DPMA 18-13767 (annexe 1). Il propose dans une première partie une synthèse des productions par espèce pour la Guadeloupe, la Martinique, la Guyane, La Réunion et Mayotte, ainsi que l’effort de pêche par flottille/métiers pour ces territoires ultra-marins (rapport OBSDEB 2018, annexe 2) et une synthèse de l’état des stocks qui font l’objet d’une évaluation. La seconde partie du rapport est consacrée à un diagnostic de l’état des connaissances et des priorités d’acquisition de connaissance en vue d’une approche écosystémique de la gestion des pêcheries concernées. NB. Cette deuxième partie sera livrée fin avril 2019. |
| Tipo: Text |
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| Ano: 2018 |
URL: https://archimer.ifremer.fr/doc/00506/61723/65694.pdf |
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| Dromard, Charlotte; Allenou, Jean-pierre; Bouchon-navaro, Yolande; Lemoine, Soizig; Thouard, Emmanuel; Reynal, Lionel; Bertrand, Jacques; Bouchon, Claude. |
| Le projet CHLOHAL comportait deux études. La première portait sur la cartographie de la contamination par la chlordécone des espèces halieutiques autour des îles de la Martinique et de la Guadeloupe ; la seconde avait pour but d'analyser le cheminement de cette contamination dans les réseaux trophiques des écosystèmes côtiers (mangroves, herbiers de Phanérogames marines et récifs coralliens), dans le but d'élucider les mécanismes de transfert de cette pollution vers le milieu marin. L’étude cartographique de la contamination des espèces halieutiques dans les deux îles du projet Chlohal confirme l’image globale de la sensibilité des zones polluées identifiées par les études antérieures. Elle met cependant en évidence des concentrations significatives sur... |
| Tipo: Text |
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| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00429/54058/55370.pdf |
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| Guyader, Olivier; Reynal, Lionel; Angin, Baptiste; Beramice, David; Erialc, Carole; Jean-charles, Cedric; Vincent, Charly. |
| Dans le cadre du projet de DCP collectifs, l’Association des pêcheurs du Sud Basse-Terre (APBST) a demandé à l’Ifremer d’organiser un suivi de l’activité de pêche sur ces dispositifs ancrés, afin de contribuer à l’évaluation de l’impact de l’implantation de ce parc de DCP. L’Ifremer étant responsable du projet pilote de Système d’Informations Halieutiques (SIH) en Guadeloupe sur la période 2007-2008, le suivi DCP collectifs s’insère dans ce dispositif avec un renforcement des moyens de collecte de données sur la zone d’étude. 12 dispositifs de concentration de poissons (DCP) collectifs conçus pour répondre aux exigences du développement durable ont été immergés par l’APSBT au large de Basse-Terre (Guadeloupe) en janvier et février 2008. Cette opération qui... |
| Tipo: Text |
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| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00190/30108/28570.pdf |
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| Taquet, Marc; Blanc, Michel; Dagorn, Laurent; Filmalter, John David; Fonteneau, Alain; Forget, Fabien; Gaertner, Jean-claude; Galzin, René; Gervain, Paul; Goujon, Michel; Guillotreau, Patrice; Guyader, Olivier; Hall, Martin; Holland, Kim; Itano, David; Monteagudo, Jean-pierre; Morales-nin, Beatriz; Reynal, Lionel; Sharp, Michael; Sokimi, Williams; Tanetoa, Mainui; Yen Kai Sun, Stephen. |
| Tipo: Text |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00115/22657/20383.pdf |
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| Guillou, Annie; Lagin, Alain-sabin; Lebeau, Alain; Priour, Daniel; Repecaud, Michel; Reynal, Lionel; Sacchi, Jacques; Taquet, Marc. |
| Since 1983, the research on the optimal conception of FADs in Martinique was particularly focused on the improvement of their resistance to different maritime or human aggressions. Following several experimentations made with different types of fads, the choice was brought on light devices anchored in 1 500 to 2 000 m depths and an experimental approach was conducted to identify the causes of loss of fads and to attempt to modelize their hydrodynamic behaviour with relation to the sea conditions. Three mathematical models are used to simulate the fad behaviour under current action and swell, and to estimate the forces exerted on each part of the device. The results of this study are presented. The fad design used nowadays for the development of pelagic... |
| Tipo: Text |
Palavras-chave: Attracting techniques Fishing technology Maintenance and repair Tuna fisheries Article Geographic Terms: ASW; Caribbean Sea; Lesser Antilles Lesser Antilles; Martinique. |
| Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/00042/15287/12673.pdf |
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| Antoni, Luca; Luque, Patricia L.; Naghshpour, Kaylie; Reynal, Lionel; Saillant, Eric. |
| Twenty homologous microsatellite markers, or simple sequence repeats (SSRs), were developed for blackfin tuna (Thunnus atlanticus) through the use of a direct Seq-to-SSR approach. The number of alleles per locus ranged between 5 and 26, and the expected heterozygosity ranged between 0.640 and 0.969. Three loci displayed significant departure from Hardy-Weinberg equilibrium expectations, likely reflecting occurrence of null alleles. Another locus showed consecutive alleles that differed by one base pair only. Consequently, this locus may be prone to elevated rates of scoring errors. The remaining 16 loci will be valuable for studies in conservation genetics of blackfin tuna. |
| Tipo: Text |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00239/34999/33529.pdf |
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| Battaglia, Andre; Guillou, Alain; Lorance, Pascal; Reynal, Lionel. |
| Le schéma général de développement du secteur de la pêche en Martinique vise a valoriser de nouveaux secteurs géographiques, il s'agit : - des tombants côtiers (100 à 300m et plus), - de la haute mer (espèces pélagiques), - des bancs du nord de la Guadeloupe, - du plateau guyanais, - à ces domaines pourront s’ajouter les ouvertures sur les autres pays de la Caraïbe grâce à des accords de pêche. Pour cela, les mesures mises en oeuvre ont consisté à promouvoir une pêche au large par la construction de navires de 9 à 11 mètres ("plans-pêche"). Cependant les objectifs fixés n'ont pu être atteints en raison des difficultés successives rencontrées par les plans-pêche pour lesquels plusieurs causes ont été évoquées, portant sur : - le mode de financement de... |
| Tipo: Text |
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| Ano: 1989 |
URL: http://archimer.ifremer.fr/doc/00069/18013/15541.pdf |
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| Reynal, Lionel; Guyader, Olivier; Pau, Cedric; Mathieu, Heloise; Dromer, Clement. |
| In order to improve the sustainable development of FADs fishing, it is important to reduce the capture of juveniles or species that need a decrease in fishing effort, temporarily or definitively. Through previous statistics data coming from commercial fishing trips and new experimental fishing trips, we compared different gears and techniques selectivity for the species and the size of the capture around FADs. We also compared different type of bait used, the best hours to fish for better productivity and to target adults. Finally we look at the influence of the FAD distance from shore. We observed that fishers’ strategies have a critical influence on FADs setting and targeted species. The further the FAD is deployed and the better yield the fisherman... |
| Tipo: Text |
Palavras-chave: Anchored FAD; Artisanal and small scale fishing; Selectivity. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00230/34091/32527.pdf |
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| Moss, Jessica; Behringer, Donald; Shields, Jeffrey D.; Baeza, Antonio; Aguilar-perera, Alfonso; Bush, Phillippe G.; Dromer, Clement; Herrera-moreno, Alejandro; Gittens, Lester; Matthews, Thomas R.; Mccord, Michael R.; Schaerer, Michelle T.; Reynal, Lionel; Truelove, Nathanial; Butler, Mark J.. |
| The pathogenic virus Panulirus argus virus 1 (PaV1) was first discovered in Caribbean spiny lobsters Panulirus argus from the Florida Keys (USA) in 1999 and has since been reported in Belize, Mexico, and Cuba; its distribution in the wider Caribbean is unknown. We collected tissue samples from adult spiny lobsters from 30 locations in 14 countries bordering the Caribbean Sea and used molecular diagnostics to assay for the presence of PaV1. PaV1 occurred primarily in the northern areas of the Caribbean, where its prevalence was highest. The virus was not found in lobsters from the southeastern Caribbean, and its prevalence was lowest in the southwestern Caribbean. DNA sequence analysis was performed on a fragment of the viral DNA to examine the genetic... |
| Tipo: Text |
Palavras-chave: Spiny lobster; Disease; Epidemiology; Connectivity. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00144/25503/23698.pdf |
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| Reynal, Lionel; Guyader, Olivier; Demaneche, Sebastien; Le Meur, Chloe; Lespagnol, Patrick. |
| Blue marlin is fished in the French Antilles around Fish Aggregating Devices (FADs). This fishery commenced in late 1985 and the fishing fleet reached its full potential in the second half of the 2000s. A fisheries information system (SIH), implemented from 2008, enables good estimation of catches and effort around FADs. The data on catch estimates of blue marlin and associated fishing effort are presented herein, as well as the methods used to assess them. From these and a survey of fishing masters, it is possible to reconstitute, year by year, the fishing fleet working around FADs in the French Antilles and to reconstitute a historical series of blue marlin landing. |
| Tipo: Text |
Palavras-chave: FAD; Statistics; Blue marlin; Fishing fleet; French Antilles. |
| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00230/34089/32525.pdf |
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| Registros recuperados: 54 | |
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