Résultats de la recherche
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
albatrosses were carried out at South Georgia in the 2003/04 breeding season. Wandering albatrosses were ... photography and subsequent counting on computer screen using Adobe Photoshop software. In total, an estimated ... -headed albatrosses were breeding at South Georgia in the 2003/04 season. Compared to results from a ... conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ...
Meeting Document : WG-FSA-04/71 : Auteur(s): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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Focusing and testing fisher know-how to solve conservation problems: a common sense approach
regulatory attention. When such issues arise, especially in US fisheries, they can threaten fisheries and ... seabird mortality in two fisheries: the Puget Sound drift gillnet fishery for sockeye salmon and the ... longline fisheries in Alaska for sablefish and Pacific cod. Although these fisheries are very different ... , the cooperative research model we have developed is the same and is proving successful in both. At the ...
Meeting Document : WG-FSA-03/20 : Auteur(s): E.F. Melvin and J.K. Parrish (USA)
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The Generalised Yield Model version 5: structure, specifications and examples for validation
Abstract: The Generalised Yield Model (GYM) was first developed in 1995 as a generalised form of ... catches set by a proportion of an estimate of pre-exploitation biomass (as in krill), a specified catch in ... the units of biomass and relative to the recruitment parameters (as in toothfish) or according to a ... version of GYM (Version 5.01b) differs from earlier versions in 2 main ways: (i) improved storage of ...
Meeting Document : WG-FSA-SAM 03/14 : Auteur(s): A. Constable (Australia)
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ENVIRONMENTAL FORCING AND SOUTHERN OCEAN MARINE PREDATOR POPULATIONS: EFFECTS OF CLIMATE CHANGE AND VARIABILITY
potentially the location where the most rapid climate change is most likely to happen, particularly in the ... high-latitude polar regions. In these regions, even small temperature changes can potentially lead to ... major environmental perturbations. Climate change is likely to be regional and may be expressed in ... predator populations show periodicity in breeding performance and productivity, with relationships with the ...
Meeting Document : WG-EMM-08/P06 : Auteur(s): P.N. Trathan, J. Forcada and E.J. Murphy
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Monitoring results of marine debris at Cape Shirreff, Livingston Island during the 1995/96 Antarctic season
total of 4 251 articles with a total weight of 65.8 kg were obtained. As occurred in previous seasons ... %; metal (77 pieces), 1.81%; and paper (12 pieces), with a 0.28% From the plastic item, those used in ... at the site have increased from 0.65 articles/m2 in 1993/94 to 1.02 in 1994/95, and 1.52 in 1995/96 ... collars: two juveniles, and two pups three months old. All these animals were immovilized in order to take ...
Meeting Document : CCAMLR-XV/BG/27 : Auteur(s): Delegation of Chile
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Development of methods for evaluating the management of benthic impacts from longline fishing using spatially explicit production models, including model validation
Abstract: An important management objective for CCAMLR in the high seas region of the Antarctic ... extreme case studies to validate the underlying model and code. In general, the model simulations were ... that they are relatively simple to construct, run, and interpret. In most cases, the results of the ... simulations suggested that management action of areal closures in the Ross Sea region are likely to result in ...
Meeting Document : WG-FSA-10/29 : Auteur(s): A. Dunn, S.J. Parker and S. Mormede (New Zealand)
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Updated models of the habitat use of Patagonian toothfish (Dissostichus eleginoides) on the Kerguelen Plateau around Heard Island and the McDonald Islands (Division 58.5.2)
(Dissostichus eleginoides) in the CCAMLR area, with landings of >5000 t.yr-1 from the French EEZ (Division ... toothfish drawn from biological data collected in the HIMI area (Division 58.5.2) on more than 500,000 fish ... quantify the effect of bathymetry in structuring the spatial distribution of different length classes and ... sex ratio of 0.6 was found in between. The recent discovery of extensive areas of spawning activity in ...
Meeting Document : WG-FSA-14/42 : Auteur(s): C. Péron and D.C. Welsford (Australia)
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Chiller killers – first steps towards identifying krill pathogens
Abstract: Antarctic Krill (Euphausia superba) is a ‘keystone species’ in the Southern Ocean ... providing the main source of food for many taxa high in the food chain such as baleen whales, penguins and ... waters of Antarctic krill northern distribution limit have experienced significant warming. In a changing ... across an altered geographic range. In this paper we present the initial findings from a histological ...
Meeting Document : WG-EMM-15/23 : Auteur(s): K. Bateman, R. Hicks, G. Tarling, M. Soeffker and G. Stentiford (United Kingdom)
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Analysis of catch and effort data from the IUU fishing vessel Kunlun
the Convention on the Conservation of Antarctic Marine Living Resources Area (CCAMLR Area) in order to ... provided to support CCAMLR members in their efforts to investigate or undertake other enforcement action in ... : Combined international efforts effectively shortened the FV Kunlun’s fishing campaign in the Convention ... Area in 2014-15 The majority of fishing was undertaken off the Antarctic coast not far from Australia’s ...
Meeting Document : CCAMLR-XXXIV/BG/18 : Auteur(s): Delegation of Australia
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At-sea distribution and prey selection of Antarctic petrels and commercial fisheries
like seabirds. In the Southern Ocean, there is an extensive fishery for Antarctic krill Euphausia ... operations versus predators is needed to predict fishery-related impacts on krill-dependent predators. In ... Antarctic petrels was limited but varied greatly among and within years, and was high in some periods during ... the non-breeding season. In a second step, we described the length frequency distribution of Antarctic ...
Meeting Document : WG-EMM-16/P15 : Auteur(s): S. Descamps, A. Tarroux, Y. Cherel, K. Delord, O.R. Godø, A. Kato, B.A. Krafft, S.-H. Lorentsen, Y. Ropert-Coudert, G. Skaret and Ø. Varpe