Résultats de la recherche
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CEMP data summary and updated analysis of CEMP data from Subarea 48.
Abstract: The CCAMLR Ecosystem Monitoring Program (CEMP) was established to detect changes in the ... in accordance with the ‘ecosystem approach’. This report provides: Details on CEMP data that have ... been submitted for 2016/17, including an area-based comparison of the 2016/17 observations with the ... submitted to the Secretariat. An update on the spatial analysis of CEMP data in subarea 48.1 using Combined ...
Meeting Document : WG-EMM-17/17 : Auteur(s): CCAMLR Secretariat
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Offal Management Group – update
Abstract: Information available in the CCEP on incidents of non-compliance with CM 26-01 ... paragraph 6, that prohibits dumping or discharging offal and discards south of 60°S, appear to be the result ... of mechanical failure. The information on offal management practices from other organisations relate ... to how and when offal should be discharged and largely reflects the provisions of CCAMLR’s CM 25-02 ...
Meeting Document : CCAMLR-38/BG/08 : Auteur(s): CCAMLR Secretariat
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ASOC report to CCAMLR
recommendations on a variety of issues relevant to the work of the Commission, including on marine protected areas ... . Throughout the intersessional period, ASOC and its member groups have conducted a variety of activities with ... the aim of supporting Antarctic conservation: supporting science, engaging in public advocacy, and ... facilitating opportunities for discussion between CCAMLR stakeholders. CCAMLR must respond to the ongoing ...
Meeting Document : CCAMLR-38/BG/43 : Auteur(s): Submitted by ASOC
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Spatial overlap of krill-dependent predators and krill fishery catches and a proposal for subdivision of catch limits in Subarea 48.1
understanding of spatial overlap between predators and fishing activity. We provide estimates of the spatial ... restricted to the last 5 years, since this time period emphasizes the shift toward autumn and winter fishing ... during the winter period, especially in the Bransfield Strait. Across years, predator distributions ... might affect the distribution of fishing effort. A comparison of CEMP parameters from two years with ...
Meeting Document : WG-EMM-14/36 : Auteur(s): J.T. Hinke, M.E. Goebel (USA), M.M. Santos (Argentina), P.N. Trathan (UK), W.Z. Trivelpiece and G.M. Watters (USA)
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Krill fishery information
Abstract: A compilation of information and work pertaining to the krill fisheries in CCAMLR ... waters in presented, including: • A report on catches for the last, complete season (2001/02) and an ... update on catches in the current season (2002/03); • Further development of measures of overlap between ... the krill fishery and krill predators; • An updated plan for the krill fishery in Area 48 ...
Meeting Document : WG-EMM-03/28 : Auteur(s): Secretariat
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Simulation experiments and CCAMLR yield estimates using CASAL
present an example model for the fictitious fishery on a fictitious species Dissostichus spurious (Everson ... were fitted with an expected percent root mean squared error (%RMSE) of less than 20%. The inclusion of ... the expected performance of integrated models is required that investigates a range of alternative ... “true” states with data that includes bias and variance in observations, as well as the robustness of ...
Meeting Document : WG-FSA-SAM-05/9 : Auteur(s): A. Dunn (New Zealand)
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Seabird by-catch update on industrial Patagonian toothfish fishery in southern Chile
started the NPOA-S process by estimating the seabird bycatch at the Patagonian toothfish fishery in ... species caught was the black-browed albatross (96% of total birds). Considering the monthly fishing effort ... determined the initiation of the NPOA to reduce seabird incidental mortality in all longline fisheries in ... Chile, which is being developed during 2004 with the close collaboration of all industrial fishery ...
Meeting Document : WG-FSA-04/13 : Auteur(s): J. Arata, C.A. Moreno and R. Hucke-Gaete (Chile)
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Stock assessment of D. eleginoides in Subarea 48.3 using dynamic production models
in subarea 48.3. This type of the models differ from the models currently used by CCAMLR Working ... mortality, age selectivity, recruitment estimates, mean weight at age) In the calculations with DPM (with ... estimates by years of fishing. Both models showed that the D. eleginoides stock status at the initial period ... of intensive fishery was at the level of 22-24 thousand tons. In 1989-1990 stock size increased (to ...
Meeting Document : WG-FSA-02/78 : Auteur(s): P.S. Gasiukov and R.S. Dorovskich (Russia)
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Proportional recruitment indices of Antarctic krill from Japanese fisheries data in Subareas 48.1, 48.2 and 48.3 during 1980 through 1997
around the Elephant Island. However, the values especially R1 in this study were extremely smaller than ... Siegel et al. (1 998)'s values. This may be due to the net selectivity and/or incomplete coverage of ... the distribution of small krill by commercial fisheries. Inter-annual pattern of R1 and R2 in Subarea ... 48.2 showed somewhat similar pattern to Subarea 48.1. However, because of inconsistency of the ...
Meeting Document : WG-EMM-98/33 : Auteur(s): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)
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A perspective on steepness, reference points, and stock assessment
these patterns. For the production model, we derive explicit relationships for steepness and life ... history parameters and then for steepness and major reference points. For the age-structured model, we are ... required to generally use numerical computation, and so we provide an example that complements the ... analytical results of the production model. We discuss what it means to set steepness equal to 1 and how to ...
Meeting Document : WG-FSA-14/P05 : Auteur(s): M. Mangel, A.D. MacCall, J. Brodziak, E.J. Dick, R.E. Forrest, R. Pourzand and S. Ralston