Résultats de la recherche
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A updated population status model for the Patagonian toothfish, Dissostichus eleginoides, at Kerguelen Islands (Division 58.5.1) using CASAL
Abstract: A stock assessment of the Patagonian toothfish (Dissostichus eleginoides) at Kerguelen ... -length data... CASAL is a simple, single-sex, single-area population model. The spatial complexity in the ... . Commercial catch are integrated in the model by CCAMLR season. A weighted combination of datasets was ... . The biomass long-term projection, done for the Patagonian toothfish with a simulated 5,100 tons catch ...
Meeting Document : WG-FSA-12/09 : Auteur(s): A. Rélot-Stirnemann (France)
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
reviewed briefly. It is characterised by very large illegal catches and a sharply declining longline CPUE ... trend. Application of a simple age-structured production model provides robust indication that the ... spawning biomass has been depleted to at most a few percent only of its pre-exploitation level. Projections ... are discussed. Author(s): A. Brandão, B.P. Watkins, D.S. Butterworth and D.G.M. Miller (South Africa ...
Meeting Document : WG-FSA-01/54 : Auteur(s): A. Brandão, B.P. Watkins, D.S. Butterworth and D.G.M. Miller (South Africa)
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A preliminary model-based approach for estimating natural mortality of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea Region
Abstract: Natural mortality (M) is a key parameter in fisheries stock assessments, relating ... directly to the productivity of a stock, stock status, and estimated precautionary yields. In the Ross Sea ... the stock assessment model. We undertake a preliminary investigation of estimating natural mortality ... using the assessment model from the Ross Sea region from 2017. We estimated natural mortality as a ...
Meeting Document : WG-SAM-2019/04 : Auteur(s): B. Moore, S. Mormede, S. Parker and A. Dunn
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Further development of a krill fishery simulation model
to both Japanese and Chilean krill fishing fleets in Subarea 48.1. A stochastic element is introduced ... the model predicts a 90% reduction in overlap with foraging predators, and a 15 to 20% reduction in ... catch. Closure of Livingston Island for the breeding period resulted in a 60% reduction in overlap with ... development of a krill fishery simulation model Approval: Approved ...
Meeting Document : WG-Joint-94/04 : Auteur(s): D.J. Agnew (Secretariat)
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A glossary of terms relevant to the management of Vulnerable Marine Ecosystems (VMEs) in the CCAMLR Area
Abstract: In 2009 SC-CCAMLR identified a list of tasks to be considered intersessionally to ... progress a framework within CCAMLR to manage the risk that bottom fishing in the CCAMLR Area may produce ... the identified intersessional tasks was to produce a glossary of terms relevant to the management of ... VMEs (SC-CAMLR XXVIII, paragraph 4.251(iii)). We propose a glossary of terms relevant to VMEs, for ...
Meeting Document : WG-EMM-10/29 : Auteur(s): B.R. Sharp and S.J. Parker (New Zealand)
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Proposal for a longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
Abstract: This paper presents a proposal for a longline survey connecting the currently ... distributions of benthic bycatch species. This proposal includes a three-year data collection and two-year data ... analysis plan towards the development of a stock hypothesis for the northern regions of 48.2 and southern ... regions of 48.4. Author(s): Delegation of the United Kingdom Title: Proposal for a longline survey to ...
Meeting Document : WG-SAM-16/33 : Auteur(s): Delegation of the United Kingdom
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Proposal for a longline survey to determine toothfish population connectivity between Subareas 48.2 and 48.4
Abstract: This paper presents a proposal for a longline survey connecting the currently ... distributions of benthic bycatch species. This proposal includes a three-year data collection and two-year data ... analysis plan towards the development of a stock hypothesis for the eastern regions of 48.2 and southern ... regions of 48.4. Author(s): Delegation of the United Kingdom Title: Proposal for a longline survey to ...
Meeting Document : WG-FSA-16/40 Rev. 1 : Auteur(s): Delegation of the United Kingdom
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2005/06
nine years in Subarea 88.1 and for five years in Subarea 88.2 with a large amount of data collected on ... fished. The 2006 D. mawsoni catch was the second highest on record with a total of 3388 t against a ... . The management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3 ... catch limit being slightly exceeded in the 2006 season. Concentration of effort within a smaller spatial ...
Meeting Document : WG-FSA-06/29 : Auteur(s): S.M. Hanchet, M.L. Stevenson and A. Dunn (New Zealand)
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Developing a carbon-budget trophic model of the Ross Sea, Antarctica: work in progress
Abstract: We report on the development of a carbon-budget trophic-model of the Ross Sea. We ... column, ice, and benthic). The simple trophic model requires well over a hundred parameters, each of ... explicit assumptions. The model is not complete, and should be considered a work in progress. A trial ... budget was created to quantify carbon flow through our conceptual model of the Ross Sea ecosystem. A ...
Meeting Document : WG-EMM-05/18 : Auteur(s): M. Pinkerton, S. Hanchet, J. Bradford-Grieve and P. Wilson (New Zealand)
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Assessing the feasibility of regional surveys of land-based predator abundance in the Southern Ocean: a framework for decision making and planning
abundance of land-based predators. At the 2001 meeting of WG-EMM it was proposed that a workshop be held in ... 2002 to assess the feasibility of such broad-scale surveys, and a small intersessional correspondence ... intersessional group developed a draft decision-making framework for planning regional scale surveys and agreed ... that it be applied at the workshop to a selected region as a means of both assessing and/or developing ...
Meeting Document : WG-EMM-02/45 : Auteur(s): C. Southwell (Australia)