Consulta: creatorFacets:"Rocklin, Delphine"
Registros recuperados: 9
Data/hora: 03/06/2024 02:48:04

La pêche récréative au bar sur les façades atlantique, manche et mer du nord. Résultats de l'enquête 2009-2011
Provedor de dados: 5
Autores: Levrel, Harold; Rocklin, Delphine; Drogou, Mickael; Veron, Gerard.
Bien gérer les activités humaines et les ressources naturelles côtières nécessite de connaître de manière précise les interactions entre elles. A l'heure actuelle, la pêche professionnelle est relativement bien suivie, mais ce n'est pas le cas de la pêche récréative. En effet, cette activité est difficile à caractériser et à renseigner car elle renvoie le plus souvent à des pratiques nomades, dispersées et très hétérogènes, pour lesquelles les informations sont rares .
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00285/39592/38084.pdf

Geographic isolation and larval dispersal shape seascape genetic patterns differently according to spatial scale
Provedor de dados: 5
Autores: Dalongeville, Alicia; Andrello, Marco; Mouillot, David; Lobreaux, Stephane; Fortin, Marie-josee; Lasram, Frida; Belmaker, Jonathan; Rocklin, Delphine; Manel, Stephanie.
Genetic variation, as a basis of evolutionary change, allows species to adapt and persist in different climates and environments. Yet, a comprehensive assessment of the drivers of genetic variation at different spatial scales is still missing in marine ecosystems. Here, we investigated the influence of environment, geographic isolation, and larval dispersal on the variation in allele frequencies, using an extensive spatial sampling (47 locations) of the striped red mullet (Mullus surmuletus) in the Mediterranean Sea. Univariate multiple regressions were used to test the influence of environment (salinity and temperature), geographic isolation, and larval dispersal on single nucleotide polymorphism (SNP) allele frequencies. We used Moran's eigenvector maps...
Tipo: Text
Palavras-chave: Connectivity; Ecological genetics; Marine fish; Mediterranean Sea; Mullus surmuletus; Seascape genetics; Single nucleotide polymorphism.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00454/56556/75079.pdf

The Marine Trophic Index as a Biodiversity Indicator : strengths and weaknesses. Parallel Sessions 12 on Intra-Specific Diversity in Marine Fish Stocks
Provedor de dados: 5
Autores: Rocklin, Delphine; Curd, Amelia; Pelletier, Dominique; Levrel, Harold.
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00061/17208/14714.pdf

Spearfishing Regulation Benefits Artisanal Fisheries: The ReGS Indicator and Its Application to a Multiple-Use Mediterranean Marine Protected Area
Provedor de dados: 5
Autores: Rocklin, Delphine; Tomasini, Jean-antoine; Culioli, Jean-michel; Pelletier, Dominique; Mouillot, David.
The development of fishing efficiency coupled with an increase of fishing effort led to the overexploitation of numerous natural marine resources. In addition to this commercial pressure, the impact of recreational activities on fish assemblages remains barely known. Here we examined the impact of spearfishing limitation on resources in a marine protected area (MPA) and the benefit it provides for the local artisanal fishery through the use of a novel indicator. We analysed trends in the fish assemblage composition using artisanal fisheries data collected in the Bonifacio Strait Natural Reserve (BSNR), a Mediterranean MPA where the spearfishing activity has been forbidden over 15% of its area. Fish species were pooled into three response groups according...
Tipo: Text
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00048/15914/13343.pdf

Simulation of the combined effects of artisanal and recreational fisheries on a Mediterranean MPA ecosystem using a trophic model
Provedor de dados: 5
Autores: Albouy, Camille; Mouillot, David; Rocklin, Delphine; Culioli, Jean M.; Le Loc'H, Francois.
Marine protected areas (MPAs) have the potential to enhance the long-term sustainability of coastal resources, and the artisanal fisheries which depend on them. However, recreational fisheries, which are increasing their impacts on coastal resources worldwide, may reduce the benefits that MPAs provide to declining artisanal fisheries. Here we used the Bonifacio Straits Natural Reserve (BSNR) Corsica as a study case to simulate the combined effects on coastal resources of artisanal and recreational fishing efforts. The BSNR ecosystem was modelled using mass-balance modelling of trophic interactions. This model was compared to another built on a non-protected area from the same region. We aggregated fishing fleets into artisanal and recreational categories,...
Tipo: Text
Palavras-chave: Ecopath with Ecosim; Epinephelus marginatus; MPA; Trophic cascades; Artisanal fisheries; Recreational activities; Mediterranean Sea.
Ano: 2010
URL: https://archimer.ifremer.fr/doc/00013/12436/9246.pdf

Des modèles et des indicateurs pour évaluer la performance des Aires Marines Protégées pour la gestion des zones côtières. Application à la Réserve Naturelle des Bouches de Bonifacio
Provedor de dados: 5
Autores: Rocklin, Delphine.
These last decades have been characterized by a great development of fishing techniques, contributing to the overexploitation of numerous marine fish stocks. In order to limit this collapse and to restore impacted communities, the implementation of management measures was necessary. Marine Protected Areas (MPAs), initially developed to protect remarkable habitats and associated biodiversity, are more and more used as a tool for spatial management of fishing activities, by adult export and/or larvae migrations from protected zones to surrounding fisheries.  The aim of this PhD was to use indicators and predictive models for evaluating the impact of the Bonifacio Strait Natural Reserve (Corsica) implementation on fish communities and the benefits of such...
Tipo: Text
Palavras-chave: Aires marines protégées; Pêche artisanale; Gestion des pêcheries; Ressource; Modélisation dynamique; Indicateurs; Gestion des zones côtières; Évaluation de scénarios; Conservation des écosystèmes; Marine protected areas; Artisanal fisheries; Fishing management; Resource; Dynamic model; Indicators; Coastal areas management; Scenarios evaluation; Ecosystems conservation.
Ano: 2010
URL: http://archimer.ifremer.fr/doc/00285/39593/38085.pdf

Combining Telephone Surveys and Fishing Catches Self-Report: The French Sea Bass Recreational Fishery Assessment
Provedor de dados: 5
Autores: Rocklin, Delphine; Levrel, Harold; Drogou, Mickael; Herfaut, Johanna; Veron, Gerard.
Fisheries statistics are known to be underestimated, since they are mainly based on information about commercial fisheries. However, various types of fishing activities exist and evaluating them is necessary for implementing effective management plans. This paper assesses the characteristics and catches of the French European sea bass recreational fishery along the Atlantic coasts, through the combination of large-scale telephone surveys and fishing diaries study. Our results demonstrated that half of the total catches (mainly small fish) were released at sea and that the mean length of a kept sea bass was 46.6 cm. We highlighted different patterns of fishing methods and type of gear used. Catches from boats were greater than from the shore, both in...
Tipo: Text
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00177/28812/27293.pdf

Recreational sea fishing in Europe in a global context-Participation rates, fishing effort, expenditure, and implications for monitoring and assessment
Provedor de dados: 5
Autores: Hyder, Kieran; Weltersbach, Marc Simon; Armstrong, Mike; Ferter, Keno; Townhill, Bryony; Ahvonen, Anssi; Arlinghaus, Robert; Baikov, Andrei; Bellanger, Manuel; Birzaks, Janis; Borch, Trude; Cambie, Giulia; De Graaf, Martin; Diogo, Hugo M. C.; Dziemian, Lukasz; Gordoa, Ana; Grzebielec, Ryszard; Hartill, Bruce; Kagervall, Anders; Kapiris, Kostas; Karlsson, Martin; Kleiven, Alf Ring; Lejk, Adam M.; Levrel, Harold; Lovell, Sabrina; Lyle, Jeremy; Moilanen, Pentti; Monkman, Graham; Morales-nin, Beatriz; Mugerza, Estanis; Martinez, Roi; O'Reilly, Paul; Olesen, Hans Jakob; Papadopoulos, Anastasios; Pita, Pablo; Radford, Zachary; Radtke, Krzysztof; Roche, William; Rocklin, Delphine; Ruiz, Jon; Scougal, Callum; Silvestri, Roberto; Skov, Christian; Steinback, Scott; Sundelof, Andreas; Svagzdys, Arvydas; Turnbull, David; Van Der Hammen, Tessa; Van Voorhees, David; Van Winsen, Frankwin; Verleye, Thomas; Veiga, Pedro; Volstad, Jon-helge; Zarauz, Lucia; Zolubas, Tomas; Strehlow, Harry V.
Marine recreational fishing (MRF) is a high-participation activity with large economic value and social benefits globally, and it impacts on some fish stocks. Although reporting MRF catches is a European Union legislative requirement, estimates are only available for some countries. Here, data on numbers of fishers, participation rates, days fished, expenditures, and catches of two widely targeted species were synthesized to provide European estimates of MRF and placed in the global context. Uncertainty assessment was not possible due to incomplete knowledge of error distributions; instead, a semi-quantitative bias assessment was made. There were an estimated 8.7 million European recreational sea fishers corresponding to a participation rate of 1.6%. An...
Tipo: Text
Palavras-chave: European marine recreational fisheries; Fisheries assessment and management; Fishing effort and expenditure; Participation; Surveys and monitoring of marine recreational fisheries.
Ano: 2018
URL: https://archimer.ifremer.fr/doc/00410/52136/52846.pdf

Changes in the catch composition of artisanal fisheries attributable to dolphin depredation in a Mediterranean marine reserve
Provedor de dados: 5
Autores: Rocklin, Delphine; Santoni, Marie-catherine; Culioli, Jean-michel; Tomasini, Jean-antoine; Pelletier, Dominique; Mouillot, David.
There is increasing evidence from previous studies, and from fishers' observations, that coastal dolphins use fishing nets as an easily accessible feeding source, damaging or depredating fish caught in the nets. This study investigates the impact of dolphin depredation on artisanal trammelnets by analysing the catch composition of 614 artisanal fishing operations in the Bonifacio Strait Natural Reserve (France). Common bottlenose dolphins (Tursiops truncatus) attacked, on average, 12.4% of the nets and damaged 8.3% of the catch. However, attacked nets were characterized by statistically significantly higher catch per unit effort than unattacked ones. Catch composition also differed significantly after dolphin attacks; bentho-pelagic fish were more...
Tipo: Text
Palavras-chave: Marine protected area; Interactions with fisheries; Depredation; Catch per unit effort; Catch composition; Bottlenose dolphin; Artisanal fisheries.
Ano: 2009
URL: http://archimer.ifremer.fr/doc/2009/publication-6808.pdf