Résultats de la recherche
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Evaluation of krill transport factor results in Subarea 48.2 in summer period of 1996
Abstract: The methods and preliminary data on evaluation of krill transfer factors results in ... subarea 48.2 in the period of 19.02-07.03.96 are presented. The polygon of 80 x 240 miles was situated in ... interaction zone of the two circulating systems of the climatic scale: Antarctic Circumpolar Current and ... Weddell Sea waters. The experiment was carried out in two stages: evaluation of krill transport through ...
Meeting Document : WG-EMM-96/37 : Auteur(s): Sushin, V.A., Kasatkina, S.M., Shnar, V.N., Abramov, A.M., Polischuk, M.I.
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Distribution of foraging by female Antarctic fur seals
Abstract: The study examined the distribution of critical habitat for foraging by female ... Antarctic fur seals breeding at the island of South Georgia. Bathymetric features of the continental shelf ... around the island of South Georgia were an important indicator for the localisation of foraging. This ... forage mainly within 100 km of the location at which the offspring was being raised. When this constraint ...
Meeting Document : WG-EMM-03/38 : Auteur(s): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)
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Toothfish, skate and longline by-catch survey in Subarea 48.3
Abstract: This was the first deep-water trawl survey of the South Georgia Maritime Zone funded by ... the Government of South Georgia and the South Sandwich Islands (GSGSSI) as part of the South Georgia ... Project. The survey was focused primarily at providing new information on the distribution, biology and ... information on bycatch species of the longline fishery, particularly grenadiers (Macrourids) and Skates ...
Meeting Document : WG-FSA-03/15 : Auteur(s): M. Belchier, M. Collins, M. Endicott, I. Everson, S. Hawkins, T. Marlow, T. Mulvey and R. Paterson (United Kingdom)
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Alternative assessment methods for toothfish at South Georgia
Abstract: We examine two alternatives to the survey recruitment/GY method for estimating ... toothfish abundance. An age structured production model (ASPM) is constructed and tuned to the CPUE series ... . The fit of the model to the CPUE series is not good, and there are several unexplained problems. The ... first is that the CPUE in the early 1990s did not decline as would be expected as the resource was ...
Meeting Document : WG-FSA-SAM-04/17 : Auteur(s): Kirkwood, G., Payne, A., Agnew, D.
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LENGTH-BASED ASSESSMENT FOR MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
Abstract: The current CCAMLR assessment method for the mackerel icefish (Champsocephalus gunnari ... ) in sub‐area 48.3 employs the CMIX and GYM packages, which derives population numbers‐at‐age and ... projects these numbers forward under the given harvest control rule to set a two‐year TAC. One issue is the ... accurate identification of age cohorts from the survey data. In this paper we describe a length‐based ...
Meeting Document : WG-FSA-09/27 : Auteur(s): R.M. Hillary (Australia), C.T.T. Edwards, R.E. Mitchel and D.J. Agnew (United Kingdom)
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Population assessment of Patagonian toothfish in Subarea 48.4
Abstract: This paper presents an update of the assessment of toothfish (Dissostichus spp.) in ... Subarea 48.4. The Subarea is divided into two management regions and assessed using a CASAL assessment of ... D. eleginoides in the northern region and a simple Petersen biomass estimate derived for D ... . eleginoides and D. mawsoni in the southern region. The CASAL model structure used to assess the stock in 2011 ...
Meeting Document : WG-FSA-12/36 : Auteur(s): R. Scott (United Kingdom)
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Domain 1 Marine Protected Area Preliminary Proposal – PART A: MPA Model
Abstract: This draft is aimed to describe the process for the designation of an MPA in Domain 1 ... led by Argentina and Chile. The process has resulted in the compilation, analysis, integration and ... display of a large amount of information, not only contributing to the best science available but also ... providing a platform for the sharing and visualization of information. We highlight the multinational ...
Meeting Document : WG-EMM-17/23 : Auteur(s): Delegations of Argentina and Chile
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Proposition d'aire marine protégée de la région de la mer de Ross
Abstract: The delegation of the United States proposes the establishment by the Commission for ... the Conservation of Antarctic Living Marine Resources (Commission or CCAMLR) of a marine protected ... area (MPA) in the Ross Sea Region (“Ross Sea Region Marine Protected Area”). In 2010, the Commission ... endorsed the Scientific Committee’s work program to develop a representative system of Antarctic MPAs with ...
Meeting Document : CCAMLR-XXXI/40 : Auteur(s): Delegation of the USA
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A review of conversion factors used in CCAMLR toothfish fisheries
Abstract: The product to green-weight conversion factors used in the toothfish fishery are ... integral to the reporting of catches and reconciling those catches with data reported via the CDS. This ... paper reviews the data available on conversion factor in the C2 and Observer data as well as the factors ... as an apparent long-term trend in the most commonly reported conversion factors. This variability ...
Meeting Document : WG-FSA-15/02 : Auteur(s): CCAMLR Secretariat
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Population dynamics of wandering albatrosses Diomedea exulans at sub-Antarctic Marion Island: longline fishing and environmental influences
Abstract: The Prince Edward Islands support the largest breeding population of the vulnerable ... Wandering Albatross Diomedea exulans. The number of birds breeding in this population has fluctuated over ... the past three decades and appears to be the result of both real changes in the size of the population ... and changes in the proportion of the population that attempts to breed in a given year. We describe ...
Meeting Document : WG-FSA-02/16 : Auteur(s): D.C. Nel, P.G. Ryan and J. Cooper (South Africa)