Résultats de la recherche
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Implanted identification tags in penguins: implantation methods, tag reliability and long-term effects (draft version)
site may also compromise survival in some individuals. These risk factors could limit the use of ... to overcome. The use of implanted transponders in demographic studies is recommended as an ... identifying individual penguins by both manual and automated means. We have found the survival of tagged ... problems associated with the use of implanted devices. The transponder removed from one bird had developed ...
Meeting Document : WG-EMM-Methods-96/08 : Auteur(s): Kerry, K., Clarke, J.
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Some changes observed in Antarctic seabird distribution and behaviour
avoidance by BA in the area of the cold Weddell Sea waters penetrating North along the archipelago. Author(s ... - Kaliningrad from 1999 November to 2000 April are analyzed. Significant shift of the southern boundary range of ... fact may be explained by abundance fluctuation or shift of the Southern Polar Front to the South ... archipelago very low abundance area of blackbrowed albatross is revealed. The phenomenon may be explained by ...
Meeting Document : WG-EMM-00/36 : Auteur(s): F. Litvinov (Russia)
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Report on fish by-catch during exploratory fishing activities in Division 58.4.3a (Elan Bank) between 2008 and 2018
-annual variations in bycatch patterns, spatial distribution and biological parameters of the main bycatch ... autolines operated. Skate bycatch was higher in shallower waters (900m-1200m) and the frequency of hauls ... post-released survival rate, we cannot rule out the fact that the use of longlines, and in particular ... Abstract: We report on objective 2 “inform estimations of the distribution, relative abundance ...
Meeting Document : WG-FSA-2019/56 : Auteur(s): C. Péron, C. Chazeau, N. Gasco and F. Massiot-Granier
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Milk consumption and growth efficiency in Antarctic fur seal (Arctocephalus gazella) pups
before decreasing significantly in the last 30-40 days of lactation. Per-bout milk consumption was ... consumption was determined on 388 occasions in 177 pups. Mean estimates of milk consumption ranged from 2.5 to ... Abstract: The body composition, milk consumption, and growth efficiency of Antarctic fur seal ... , South Georgia. The body composition of pups differed between the sexes; whereas for any given age ...
Meeting Document : WG-EMM-97/11 : Auteur(s): Socha, D.G., Arnould, J.P.Y., Boyd, I.L.
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Using data recorded during commercial krill fishing in Feedback Management
same time the data might inform about patterns in the ecosystem of importance to FBM. Similarly ... distribution and abundance of krill in the South Orkney Islands. However, due to the lack of survey design ... might inform about some of this uncertainties. In this paper we discuss how the information of these two ... statistical handling of the collected data into stock abundance information. Godø et al. (2015) (WG-EMM-15/13 ...
Meeting Document : WG-EMM-16/74 : Auteur(s): O.R. Godø, G. Skaret and E. Niklitschek
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Change-in-ratio and index-removal methods for population assessment and their application to snow crab (Chionoecetes opilio)
composition, in order to use these methods. We use the methods to estimate the population of legal-size snow ... for fisheries studies. We also show how to combine the two approaches in a single estimator. It is ... crabs (Chionoecetes opillio) in St. Mary's Bay, Newfoundland, before and after the fishery, and to ... of pre-recruits but this requires the assumption of equal catch ability of all animals, a condition ...
Meeting Document : WS-CRAB-93/10 : Auteur(s): X. Xu, E.G. Dawe and J.M. Hoenig (USA)
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Hook loss in CCAMLR exploratory fisheries
lines requires an estimate of the number of lost hooks that are attached to sections of line. In 2011 ... attached to sections of lines. In 2012 15 of the 26 vessel/fishery reports provided non-zero data with an ... to be reiterated in order to achieve a greater level of engagement with the requirements to complete ... Abstract: The development of methods to estimate unaccounted fishing mortality from lost fishing ...
Meeting Document : WG-FSA-12/65 : Auteur(s): Secretariat
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Scientific Observer Program (SOP) in Chile
Secretariat of Fisheries in Chile, the technical information and scientific basis for the regulation of ... coast. This paper describes the scope of the SOP in Chile, its organization, quantity of personnel ... involved, electronic data collection system used by Scientific Observers, and the qualifications of ... Abstract: IFOP, as non profit marine research institute has the mission to provide to the Under ...
Meeting Document : TASO-10/08 : Auteur(s): O. Guzman (Chile)
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Comparisons in diet between diurnal and overnight foraging chinstrap penguins at Seal Island
respectively. The highest intake of fish was observed in 1993/94 when krill abundance was very low. Calorific ... ) and an overnight forager (5732 kJ) based on available input parameters. A comparison of krill in the ... , considered that both foragers tend to take larger krill of the least capable of avoiding capture in their ... their diets but fish constituted 0-1 % and 14-45 % of the diet of diurnal and overnight foragers ...
Meeting Document : WG-EMM-96/55 : Auteur(s): Hayashi, T., Ichii, T., Cameron, M.F., Miura, A., Jansen, J.K., Bengtson, J.L., Boveng, P.
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Beached birds: a guide used by north pacific groundfish observers to identify seabirds incidentally caught in fisheries
Abstract: In the fall of 2002, the U.S. National Marine Fisheries Service (NMFS) purchased 300 ... vessels in the Bering Sea and Gulf of Alaska. This new guide replaces a dichotomous key on looseleaf paper ... of fishery observers to accurately identify seabirds as they come up in the sampled fishing gear ... collection at the NMFS North Pacific Groundfish Observer Program. A copy of Beached Birds is available in the ...
Meeting Document : WG-FSA-03/24 : Auteur(s): T. Hass and S. Davis (USA)