Consulta: creatorFacets:"Forget, Fabien"
Registros recuperados: 13
Data/hora: 03/06/2024 09:24:45

Global spatial risk assessment of sharks under the footprint of fisheries
Provedor de dados: 5
Autores: Queiroz, Nuno; Humphries, Nicolas E.; Couto, Ana; Vedor, Marisa; Da Costa, Ivo; Sequeira, Ana M. M.; Mucientes, Gonzalo; Santos, Antonio M; Abascal, Francisco J.; Abercrombie, Debra L.; Abrantes, Katya; Acuna-marrero, David; Afonso, Andre S.; Afonso, Pedro; Anders, Darrell; Araujo, Gonzalo; Arauz, Randall; Bach, Pascal; Barnett, Adam; Bernal, Diego; Berumen, Michael L.; Lion, Sandra Bessudo; Bezerra, Natalia P. A.; Blaison, Antonin V.; Block, Barbara A.; Bond, Mark E.; Bonfil, Ramon; Bradford, Russell W.; Braun, Camrin D.; Brooks, Edward J.; Brooks, Annabelle; Brown, Judith; Bruce, Barry D.; Byrne, Michael E.; Campana, Steven E.; Carlisle, Aaron B.; Chapman, Demian D.; Chapple, Taylor K.; Chisholm, John; Clarke, Christopher R.; Clua, Eric G.; Cochran, Jesse E. M.; Crochelet, Estelle C.; Dagorn, Laurent; Daly, Ryan; Cortes, Daniel Devia; Doyle, Thomas K.; Drew, Michael; Duffy, Clinton A. J.; Erikson, Thor; Espinoza, Eduardo; Ferreira, Luciana C.; Ferretti, Francesco; Filmalter, John D.; Fischer, G. Chris; Fitzpatrick, Richard; Fontes, Jorge; Forget, Fabien; Fowler, Mark; Francis, Malcolm P.; Gallagher, Austin J.; Gennari, Enrico; Goldsworthy, Simon D.; Gollock, Matthew J.; Green, Jonathan R.; Gustafson, Johan A.; Guttridge, Tristan L.; Guzman, Hector M.; Hammerschlag, Neil; Harman, Luke; Hazin, Fabio H. V.; Heard, Matthew; Hearn, Alex R.; Holdsworth, John C.; Holmes, Bonnie J.; Howey, Lucy A.; Hoyos, Mauricio; Hueter, Robert E.; Hussey, Nigel E.; Huveneers, Charlie; Irion, Dylan T.; Jacoby, David M. P.; Jewell, Oliver J. D.; Johnson, Ryan; Jordan, Lance K. B.; Jorgensen, Salvador J.; Joyce, Warren; Daly, Clare A. Keating; Ketchum, James T.; Klimley, A. Peter; Kock, Alison A.; Koen, Pieter; Ladino, Felipe; Lana, Fernanda O.; Lea, James S. E.; Llewellyn, Fiona; Lyon, Warrick S.; Macdonnell, Anna; Macena, Bruno C. L.; Marshall, Heather; Mcallister, Jaime D.; Mcauley, Rory; Meyer, Michael A.; Morris, John J.; Nelson, Emily R.; Papastamatiou, Yannis P.; Patterson, Toby A.; Penaherrera-palma, Cesar; Pepperell, Julian G.; Pierce, Simon J.; Poisson, Francois; Quintero, Lina Maria; Richardson, Andrew J.; Rogers, Paul J.; Rohner, Christoph A.; Rowat, David R. L.; Samoilys, Melita; Semmens, Jayson M.; Sheaves, Marcus; Shillinger, George; Shivji, Mahmood; Singh, Sarika; Skomal, Gregory B.; Smale, Malcolm J.; Snyders, Laurenne B.; Soler, German; Soria, Marc; Stehfest, Kilian M.; Stevens, John D.; Thorrold, Simon R.; Tolotti, Mariana T.; Towner, Alison; Travassos, Paulo; Tyminski, John P.; Vandeperre, Frederic; Vaudo, Jeremy J.; Watanabe, Yuuki Y.; Weber, Sam B.; Wetherbee, Bradley M.; White, Timothy D.; Williams, Sean; Zarate, Patricia M.; Harcourt, Robert; Hays, Graeme C.; Meekan, Mark G.; Thums, Michele; Irigoien, Xabier; Eguiluz, Victor M.; Duarte, Carlos M.; Sousa, Lara L.; Simpson, Samantha J.; Southall, Emily J.; Sims, David W.
Effective ocean management and the conservation of highly migratory species depend on resolving the overlap between animal movements and distributions, and fishing effort. However, this information is lacking at a global scale. Here we show, using a big-data approach that combines satellite-tracked movements of pelagic sharks and global fishing fleets, that 24% of the mean monthly space used by sharks falls under the footprint of pelagic longline fisheries. Space-use hotspots of commercially valuable sharks and of internationally protected species had the highest overlap with longlines (up to 76% and 64%, respectively), and were also associated with significant increases in fishing effort. We conclude that pelagic sharks have limited spatial refuge from...
Tipo: Text
Ano: 2019
URL: https://archimer.ifremer.fr/doc/00575/68662/67587.pdf

Farmed bivalve loss due to seabream predation in the French Mediterranean Prevost Lagoon
Provedor de dados: 5
Autores: Richard, Marion; Forget, Fabien; Mignucci, Alexandre; Mortreux, Serge; Le Gall, Patrik; Callier, Myriam; Weise, Am; Mckindsey, Cw; Bourjea, Jerome.
Bivalve predation by seabream has been observed worldwide and is a major concern for bivalve farmers. Farmed bivalve-seabream interactions must be better understood to ensure the sustainability of bivalve aquaculture. The objectives of this study were to characterize gilthead seabream Sparus aurata presence in a bivalve farm in Prevost Lagoon (Mediterranean Sea) using acoustic telemetry and to evaluate monthly losses of mussels Mytilus galloprovincialis and oysters Crassostrea gigas due to seabream predation over an 18 mo period inside the farm and at an unprotected experimental platform. Large (281 to 499 mm TL) seabream were more commonly detected in the bivalve farm than were small (200 to 280 mm TL) seabream. In contrast to small seabream, 90% of large...
Tipo: Text
Palavras-chave: Shellfish culture; Sparus aurata; Size; Acoustic telemetry; Crassostrea gigas; Mytilus galloprovincialis; Oyster; Mussel.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00663/77515/79299.pdf

An update on the post-release survival of silky sharks incidentally captured by tuna purse seine vessels in the Indian Ocean
Provedor de dados: 5
Autores: Filmalter, John; Forget, Fabien; Poisson, Francois; Vernet, Anne-lise; Dagorn, Laurent.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00130/24090/22071.pdf

DCP employés par les pêcheries artisanales et industrielles : une question d'échelle. L’utilisation et le développement technique des DCP au coeur de la conférence de Tahiti sur les DCP
Provedor de dados: 5
Autores: 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
Ano: 2011
URL: http://archimer.ifremer.fr/doc/00115/22657/20383.pdf

Aggregative capacity of experimental anchored Fish Aggregating Devices (aFADs) in Northeastern Brazil revealed through electronic tagging data
Provedor de dados: 5
Autores: Véras, Luísa Queiroz; Capello, Manuela; Forget, Fabien; Tolotti, Mariana Travassos; Véras, Drausio Pinheiro; Dagorn, Laurent; Hazin, Fábio Hissa.
Catches of pelagic fish associated to anchored Fish Aggregating Devices have been responsible for increases in income, fish consumption, and even cultural identity of artisanal fishing communities in many developing countries worldwide. Nonetheless, in Brazil, aFAD fishing is still poorly developed and studied. In this experiment, FADs were anchored offshore the city of Recife (Northeastern Brazil) to investigate the potential of moored buoys in the aggregation of commercially important pelagic species near the coast, as an alternative fishing site for artisanal fishers. The behavior of acoustically tagged fish was investigated to assess whether they were attracted to the FADs and how long they remained associated to them. The results indicated that,...
Tipo: Text
Palavras-chave: Associative behavior; Acoustic tagging; Moored FADs; Pelagic fish; Artisanal fishing.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00665/77751/79875.pdf

Fine-scale 3-dimensional movement behaviour of silky sharks Carcharhinus falciformis associated with fish aggregating devices (FADs)
Provedor de dados: 5
Autores: Filmalter, John; Cowley, Paul; Forget, Fabien; Dagorn, Laurent.
The silky shark Carcharhinus falciformis is the primary elasmobranch bycatch in the global tuna purse seine fishery using fish aggregating devices (FADs). Information on the associative behaviour of this species with floating objects remains limited. Here the use of various electronic tags provided important new insight into this behaviour. Thirty-eight juvenile silky sharks (69 to 116 cm total length; TL) were tagged with acoustic tags at 9 drifting FADs equipped with satellite-linked acoustic receivers in the western Indian Ocean (total monitoring = 154 d). Presence/absence and swimming depth data were transmitted from the receivers. A subset of 17 individuals was also fitted with pop-up satellite archival tags (PSATs; n = 13), or internal archival tags...
Tipo: Text
Palavras-chave: Shark; Behaviour; Telemetry; FAD; Bycatch.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00300/41086/73619.pdf

Association dynamics of tuna and purse seine bycatch species with drifting fish aggregating devices (FADs) in the tropical eastern Atlantic Ocean
Provedor de dados: 5
Autores: Tolotti, Mariana Travassos; Forget, Fabien; Capello, Manuela; Filmalter, John David; Hutchinson, Melanie; Itano, David; Holland, Kim; Dagorn, Laurent.
Several pelagic fish species are known to regularly associate with floating objects in the open ocean, including commercially valuable species. The tuna purse seine industry takes advantage of this associative behavior and has been increasingly deploying free-drifting man-made floating objects, also known as fish aggregating devices (FADs). Using passive acoustic telemetry, this study describes the associative dynamics of the main targeted tropical tuna species (Thunnus albacares, T. obesus and Katsuwonus pelamis), as well as three major bycatch species, silky shark (Carcharhinus falciformis), rainbow runner (Elagatis bipinnulata) and oceanic triggerfish (Canthidermis maculata). Short-term excursions away from the FADs were frequently performed by all tuna...
Tipo: Text
Palavras-chave: Behavior; Acoustic telemetry; Residence time; Floating objects; Pelagic fish; Tropical tuna.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00609/72077/71042.pdf

Effects of habitat modifications on the movement behavior of animals: the case study of Fish Aggregating Devices (FADs) and tropical tunas
Provedor de dados: 5
Autores: Pérez, Geraldine; Dagorn, Laurent; Deneubourg, Jean-louis; Forget, Fabien; Filmalter, John D.; Holland, Kim; Itano, David; Adam, Shiham; Jauharee, Riyaz; Beeharry, Sunil P.; Capello, Manuela.
Background Aggregation sites represent important sources of environmental heterogeneity and can modify the movement behavior of animals. When these sites are artificially established through anthropogenic actions, the consequent alterations to animal movements may impact their ecology with potential implications for their fitness. Floating objects represent important sources of habitat heterogeneity for tropical tunas, beneath which these species naturally aggregate in large numbers. Man-made floating objects, called Fish Aggregating Devices (FAD), are used by fishers on a massive scale to facilitate fishing operations. In addition to the direct impacts that fishing with FADs has on tuna populations, assessing the effects of increasing the numbers of FADs...
Tipo: Text
Palavras-chave: Acoustic tagging; Associative behavior; Density of floating objects; Movement behavior; Tropical tuna.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00659/77137/78454.pdf

Drifting along in the open-ocean: The associative behaviour of oceanic triggerfish and rainbow runner with floating objects
Provedor de dados: 5
Autores: Forget, Fabien; Cowley, Paul; Capello, Manuela; Filmalter, John D.; Dagorn, Laurent.
Multispecies aggregations at floating objects are a common feature throughout the world's tropical and subtropical oceans. The evolutionary benefits driving this associative behaviour of pelagic fish remains unclear and information on the associative behaviour of non-tuna species remains scarce. This study investigated the associative behaviour of oceanic triggerfish (Canthidermis maculata) and rainbow runner (Elagatis bipinnulata), two major bycatch species in the tropical tuna purse seine fishery, at floating objects in the western Indian Ocean. A total of 24 rainbow runner and 46 oceanic triggerfish were tagged with acoustic transmitters at nine drifting FADs equipped with satellite linked receivers. Both species remained associated with the same...
Tipo: Text
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00624/73626/73053.pdf

Predicting bycatch hotspots in tropical tuna purse seine fisheries at the basin scale
Provedor de dados: 5
Autores: Mannocci, Laura; Forget, Fabien; Travassos Tolotti, Mariana; Bach, Pascal; Bez, Nicolas; Demarcq, Herve; Kaplan, David; Sabarros, Philippe; Simier, Monique; Capello, Manuela; Dagorn, Laurent.
Fisheries observer programs represent the most reliable way to collect data on fisheries bycatch. However, their limited coverage leads to important data gaps that preclude bycatch mitigation at the basin scale. Habitat models developed from available fisheries observer programs offer a potential solution to fill these data gaps. We focus on tropical tuna purse seine fisheries (TTPSF) that span across the tropics and extensively rely on floating objects (FOBs) for catching tuna schools, leading to the bycatch of other species associated with these objects. Bycatch under floating objects is dominated by five species, including the vulnerable silky shark Carcharhinus falciformis and four bony fishes (oceanic triggerfish Canthidermis maculata, rainbow runner...
Tipo: Text
Palavras-chave: Bycatch; Habitat modelling; Hotspots; Fisheries observer programs; Geographical extrapolation; Tropical oceans.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00662/77385/78986.pdf

Fine-scale vertical movements of oceanic whitetip sharks (Carcharhinus longimanus)
Provedor de dados: 5
Autores: Tolotti, Mariana; Bauer, Robert; Forget, Fabien; Bach, Pascal; Dagorn, Laurent; Travassos, Paulo.
Time series of depth data, obtained for 6 oceanic whitetip sharks (Carcharhinus longimanus) tagged with pop-up satellite archival tags, were analyzed in detail. The aim was to improve our knowledge of the vertical behavior of this species. Individuals were tagged in the Atlantic Ocean (n=5) and Indian Ocean (n=1) between 2011 and 2012. Deployment periods for these tags varied from 100 to 178 d. The sharks spent most of their time in the mixed layer, displaying the typical behavior of an epipelagic species. However, analyses revealed complex vertical movement patterns, including marked diel changes that reflect 3 different types of behavior. Results of the generalized additive models indicate that vertical movements were strongly correlated with variations...
Tipo: Text
Ano: 2017
URL: https://archimer.ifremer.fr/doc/00625/73734/74664.pdf

Optimizing PAT data transmission: assessing the accuracy of temperature summary data to estimate environmental conditions
Provedor de dados: 5
Autores: Bauer, Robert; Forget, Fabien; Fromentin, Jean-marc.
Pop-up archival tags (PAT) provide summary and high-resolution time series data at predefined temporal intervals. The limited battery capabilities of PATs often restrict the transmission success and thus temporal coverage of both data products. While summary data are usually less affected by this problem, as a result of its lower size, it might be less informative. We here investigate the accuracy and feasibility of using temperature at depth summary data provided by PATs to describe encountered oceanographic conditions. Interpolated temperature at depth summary data was found to provide accurate estimates of three major thermal water column structure indicators: thermocline depth, stratification and ocean heat content. Such indicators are useful for the...
Tipo: Text
Palavras-chave: Mixed layer depth; Ocean heat content; Pop-up archival tags; PAT-style Depth-Temperature Profiles; Temperature at depth; Thermal stratification; Thermocline.
Ano: 2015
URL: https://archimer.ifremer.fr/doc/00287/39800/45102.pdf

Vertical and horizontal behaviour of silky, oceanic white tip and blue sharks in the western Indian Ocean
Provedor de dados: 5
Autores: Filmater, John; Forget, Fabien; Poisson, Francois; Vernet, Anne-lise; Bach, Pascal; Dagorn, Laurent.
Tipo: Text
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00130/24091/22073.pdf