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| Filmalter, J; Hutchinson, M; Poisson, Francois; Eddy, W; Brill, R; Bernal, D; Itano, D; Muir, J; Vernet, Al; Holland, K; Dagorn, Laurent. |
| ISSF, in collaboration with other bycatch mitigation projects, such as the EU MADE project and the ORTHONGEL bycatch project, has undertaken tagging experiments to quantify the fishery impact on silky sharks (Carcharhinus falciformis) incidentally captured in the global tropical tuna purse seine fishery. Silky sharks commonly associate with floating objects in the open ocean environment. This phenomenon has been observed throughout the species’ cosmopolitan distribution range. Several other pelagic and coastal species also display this behaviour, but its prevalence in three tropical tuna species (skipjack, Katsuwonus pelamis, yellowfin, Thunnus albacares, and bigeye T. obesus, tunas) has led to the commercial exploitation of this behaviour. Industrial... |
| Tipo: Text |
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| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00481/59243/61967.pdf |
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| Dagorn, L; Pincock, D; Girard, C; Holland, K; Taquet, Marc; Sancho, G; Itano, D; Aumeeruddy, R. |
| Automated acoustic receivers are now widely used by biologists to study the behavior of fish. However, currently available acoustic receivers require physical recovery of the units to download stored data. Such operation is often difficult in remote study areas like in the open ocean. We present a new satellite-linked acoustic receiver (Vemco VR3-Argos) that allows downloading data through a satellite uplink (Argos). The VR3-Argos can last up to one year, sending GPS positions and tag data at regular time intervals. We illustrate the advantages of this new technology with tagging data from 121 fish of seven species (yellowfin tuna, bigeye tuna, skipjack tuna, wahoo, dolphinfish, silky shark and oceanic triggerfish) caught and released around drifting fish... |
| Tipo: Text |
Palavras-chave: Pelagic fish; Tuna; Fish telemetry; Acoustic receiver; FAD. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-3731.pdf |
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