Resultados de la búsqueda
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Research plan for the 2016/17 exploratory longline fishery of Dissostichus spp. in Division 58.4.2
Abstract: The current season (2015/16) is the first one of the second three-season research in ... data-poor fisheries. In the present report, the next season research plan in Division 58.4.2 was made ... using the updated CCAMLR C2 and Observer data. The stock sizes for a research block (58.4.2_1) were ... estimated by the Petersen estimator and the CPUE x seabed analogy method using updated CCAMLR C2 data and ...
Meeting Document : WG-SAM-16/05 : Autor(es): Delegation of Japan
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Summary of research voyages in the South Orkney Islands region in 2015/16
Abstract: Two scientific research voyages were undertaken on board the RRS James Clark Ross in ... the South Orkney Islands region during the 2015/16 austral summer. These surveys together involved ... inform the further development of spatial management, including feedback management of the krill fishery ... , in this region. The South Orkneys Ecosystems Studies cruise (SOES, Jan-Feb 2016) was led by the UK ...
Meeting Document : SC-CAMLR-XXXV/BG/28 : Autor(es): Delegations of the United Kingdom and Norway
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Development of a five-year work plan for the CCAMLR Scientific Committee
Abstract: At last year’s meeting, it was agreed that a five-year work plan for the Scientific ... Committee should be developed for consideration by the Scientific Committee in 2017 (SC-CAMLR-XXXV ... , paragraphs 13.8 to 13.20). It was agreed that the work should be led by the Chair of the Scientific Committee ... with input from the conveners of its working groups and that it should be made available for ...
Meeting Document : WG-EMM-17/02 : Autor(es): M. Belchier (Chair of SC-CAMLR)
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Estimating fishing gear selectivity for Patagonian toothfish (Dissostichus eleginoides) caught by trawlers on the Heard Island plateau region (Division 58.5.2) using trawl and longline length frequency data and forward-calculated continuation ratios
Abstract: Length-dependent fishing selectivity for trawlers fishing for the Patagonian toothfish ... (Dissostichus eleginoides) on the Heard Island Plateau (Division 58.5.2) was modelled as a 3-segment linear ... selectivity and a plateau section in between for the length range where fish are assumed fully selected. Using ... -2005 the upper arm of the gear selectivity function for trawlers is estimated using a two-stage process ...
Meeting Document : WG-FSA-05/65 : Autor(es): S.G. Candy (Australia)
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Demography of Antarctic krill in the Elephant Island area (Antarctic Peninsula) during austral summer 2001
around Elephant Island during 27 January to 4 February 2001. Results show a spatial separation of the ... juvenile and the spawning stock. The station grid was extended to the south, where a large proportion of ... during the past years (between 198 and 230 krill 1000 m-3, i.e. between 40 and 46 m-2 or 11.3 g m-2). The ... proportional recruitment index for the entire survey area for the 1999/2000 year class was R1 = 0.573, and the ...
Meeting Document : WG-EMM-01/10 : Autor(es): V. Siegel (Germany), B. Bergström (Sweden), U. Mühlenhardt-Siegel (Germany) and M. Thomasson (Sweden)
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DEVELOPMENT OF SPATIALLY EXPLICIT AGE-STRUCTURED POPULATION DYNAMICS OPERATING MODELS FOR ANTARCTIC TOOTHFISH IN THE ROSS SEA
operating models for Antarctic toothfish in the Ross Sea. The operating models consider both a coarse-scale ... and fine-scale spatial resolution and consider scenarios where abundance can be present over the ... entire Ross Sea region or constrained to areas where the fishery has operated. The models represent ... other factors to quantify risk and uncertainties for management of the Ross Sea Antarctic toothfish ...
Meeting Document : WG-SAM-09/18 : Autor(es): A. Dunn, S. Rasmussen and S. Hanchet (New Zealand)
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Temporal variation in Antarctic sea-ice: analysis of a long-term fast-ice record from the South Orkney Islands
Abstract: Detection of climate-induced change in marine ecosystems requires a knowledge of the ... underlying variability of the environment. This paper uses a range of datasets to investigate the interannual ... variability in Southern Ocean sea-ice dynamics. We present the first analysis of a series of fast-ice duration ... data from Signy Island, which we have cross-calibrated and combined with an earlier series from the ...
Meeting Document : WG-EMM-95/80 : Autor(es): Symon, C., Murphy, E.J., Priddle, J., Clarke, A.
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ECOSYSTEM SERVICES OF THE SOUTHERN OCEAN
Abstract: The Southern Ocean is a globally important marine region, providing a range of ... ecosystem services which support human life, health and well-being, including the provision of marine living ... resources, and the regulation of global climate and sea level. Assessing ecological processes in terms of ... the services they provide translates the complexity of the environment into functions which can be ...
Meeting Document : WG-EMM-11/21 : Autor(es): S.M. Grant, S.L. Hill and P.N. Trathan (UK)
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OCCURRENCE OF DWARF MINKE WHALES (BALAENOPTERA ACUTOROSTRATA SUBSP) AROUND THE ANTARCTIC PENINSULA
Abstract: The occurrence of dwarf minke whales (Balaenoptera acutorostrata subsp.) around the ... Antarctic Peninsula was examined based on 406 sightings of minke whales recorded during the Chilean ... Antarctic Scientific Expeditions and other opportunistic cetacean surveys. Identification of the species was ... made only for the whales sighted in the proximity of the vessels when the specific diagnostic ...
Meeting Document : WG-EMM-11/P2 : Autor(es): J. Acevedo, C. Olavarría, J. Plana, A. Aguayo-Lobo, A. Larrea and L.A. Pastene
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Circumpolar connections between Antarctic krill (Euphausia superba Dana) populations: Investigating the roles of ocean and sea ice transport
in the Southern Ocean. Krill have a close association with sea ice which provides access to a ... critical food source and shelter, particularly in the early life stages. Advective modelling of transport ... . Here we present Lagrangian modelling studies at the circumpolar scale that include interaction with sea ... ice. The advection scheme uses ocean velocity output from the Ocean Circulation and Climate Advanced ...
Meeting Document : WG-EMM-07/P10 : Autor(es): S.E. Thorpe, E.J. Murphy and J.L. Watkins (United Kingdom)