Résultats de la recherche
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An updated spatially explicit population dynamics operating model for Antarctic toothfish in the habitable depths of the Ross Sea region
model for Antarctic toothfish in the Ross Sea region, for a medium scale spatial resolution (189 spatial ... cells) covering the Ross Sea region. We build on the previous working medium-scale model in which the ... habitat for toothfish (120 cells – semi-restricted model). Model fits to the reproductive data were ... unsatisfactory in previous models, with a much flatter maturity ogive than that derived through histology. In the ...
Meeting Document : WG-SAM-14/31 : Auteur(s): S. Mormede, A. Dunn, S. Parker and S. Hanchet (New Zealand)
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Proposal by the Russian Federation to open Areas of Special Scientific Interest in three sectors of Antarctica in the CCAMLR Convention Area
Abstract: According to the Antarctic Treaty, which came into force in 1961, Antarctica is an area ... free from military and industrial activity. International cooperation is aimed at the development of ... scientific research and biological resources in the Southern Ocean. The regulations on such activities are ... set forth in the Convention on the Conservation of Antarctic Marine Living Resources and are governed ...
Meeting Document : CCAMLR-XXXIV/BG/22 : Auteur(s): Delegation of the Russian Federation
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New Zealand submission for the trial of the CCAMLR observer training program accreditation scheme
Abstract: In 2011, the Scientific Committee endorsed the procedure for training and accreditation ... presented in SC-CAMLR-XXX/08, and invited Members to participate in a trial of the initial review and ... technical peer review. These are described in Parts a–c of the proposed procedure for a CCAMLR observer ... training program accreditation scheme (COTPAS, SC-CAMLR-XXX, paragraphs 7.19 to 7.20, SC-CAMLR-XXX/8). The ...
Meeting Document : WG-FSA-17/41 : Auteur(s): A. Dunn, D. Kerrigan and A. McNabb
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Reasons of differences between distribution and density of mackerel icefish (Champsocephalus gunnari) aggregations in the South Georgia area during summer and autumn periods in different years from the bottom trawl survey data
Abstract: During the feeding period icefish aggregations are confined to a frontal zone between ... the largest aggregations of food organisms are concentrated at the beginning of the spring period ... . Icefish concentrations were detected at the periphery of a cyclonic meander or in the centre of the ... anticyclonic circulation formed by the Weddell waters. Confinement of the fish to the boundary of water masses ...
Meeting Document : WG-FSA-05/77 : Auteur(s): Zh.A. Frolkina (Russia)
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Report of the Steering Committee for the WG-EMM Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management
Abstract: This paper reports on the intersessional activities of the Steering Committee of the ... “Workshop on plausible ecosystem models for testing approaches to krill management” in preparation for the ... workshop at WG-EMM 2004. The overarching Terms of Reference are (i) to review the approaches used to model ... marine ecosystems, (ii) to consider plausible operating models for the Antarctic marine ecosystem, and to ...
Meeting Document : WG-EMM-04/25
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The CAML/SCAR-MarBIN Biogeographic Atlas of the Southern Ocean
detecting impacts of environmental changes, developing the bio/ecoregionalisation of the Southern Ocean ... biodiversity hotspots. At the end of five years of extensive biodiversity exploration and assessment by the ... Census of Antarctic Marine Life (www.caml.aq), with 19 CAML-dedicated cruises in the whole Southern Ocean ... , and following the intense compilation efforts of biogeographic data by the SCAR-Marine Biodiversity ...
Meeting Document : CCAMLR-XXX/BG/11 : Auteur(s): Submitted by SCAR
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ASSESSMENT MODELS FOR ANTARCTIC TOOTHFISH (DISSOSTICHUS MAWSONI) IN THE ROSS SEA FOR THE YEARS 1997–98 TO 2008–09
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea (Subareas 88.1 and SSRUs 88.2A–B ... ), using revised catch, catch-at-age, and tag-recapture data for the 2008–2009 season. The reference model ... using the selected trips tag data and the revised maturity ogive gave a similar, but slightly lower ...
Meeting Document : WG-FSA-09/40 Rev. 1 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)
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CONDITIONING SMOM USING THE AGREED CALENDAR OF OBSERVED CHANGES IN PREDATOR AND KRILL ABUNDANCE: A FURTHER STEP IN THE DEVELOPMENT OF A MANAGEMENT PROCEDURE FOR KRILL FISHERIES IN AREA 48
Abstract: The updated version of the Spatial Multi-species Operating Model (SMOM) of krill ... -predator-fishery dynamics described in an accompanying paper is conditioned using the WG-SAM set of ... reference observations for Area 48 (the SAM calendar). Results are presented for two implementations of SMOM ... , one with the time series of krill abundance fixed on input, and the other incorporating an explicit ...
Meeting Document : WG-EMM-08/44 : Auteur(s): É.E. Plagányi and D.S. Butterworth (South Africa)
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Distribution and abundance of krill in the vicinity of Elephant Island in the 1992 austral summer
in the vicinity of Elephant Island, Antarctica, from mid-January to mid-March, 1992. The first and ... last surveys covered a 105 by 105 n.mi. study area centered on Elephant Island; the second and third ... surveys covered a 60 by 35 n.mi. area immediately north of Elephant Island. During the first survey, krill ... were distributed in a wide band extending along the north side of Elephant Island and wrapping around ...
Meeting Document : WG-CEMP-92/15 : Auteur(s): R.P. Hewitt and D.A. Demer (USA)
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Dynamic of the krill fishery in the Area 48 and its relation to climate variability and changes in fishing technology
Abstract: The authors analyzed the spatial-temporal structure of standardized indices of catch ... per effort unit (CPUE) of Antarctic krill fishery in the Area 48 in relation to dynamic of ААО ... indices (Antarctic Oscillation Index) as one of the factors used in analysis of inter-annual and long ... -period fluctuations of hydrometeorological conditions at high latitudes of the southern hemisphere ...
Meeting Document : WG-EMM-13/25 : Auteur(s): P.S. Gasyukov and S.М Kаsatkina (Russia)