Résultats de la recherche
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CCAMLR and climate change: the need for urgent action
Convention Area. In this paper, ASOC highlights two major scientific articles that were published this year ... in which scientists propose scenarios for the future of Antarctica and the planet in a changing ... rapidly closing window for the world to take action. Climate change requires a coordinated global response ... . Implements an overarching climate change strategy and work program. Designates a network of marine protected ...
Meeting Document : CCAMLR-XXXVII/BG/26 : Auteur(s): Submitted by ASOC
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LENGTH-BASED ASSESSMENT FOR THE MACKEREL ICEFISH (CHAMPSOCEPHALUS GUNNARI) IN SUB-AREA 48.3
Abstract: The current assessment method for the mackerel icefish (Champsocephalus gunnari) in sub ... -area 48.3 employs the CMIX and GYM packages, deriving population numbers-at-age then projecting these ... numbers forward under the given harvest control rule to set a two-year TAC. One issue is the accurate ... identification of cohorts from the survey model, given the differential age structures observed in the population ...
Meeting Document : WG-SAM-09/15 : Auteur(s): R.M. Hillary, D.J. Agnew and R. Mitchell (United Kingdom)
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Results of the fifth Ross Sea shelf survey to monitor abundance of sub-adult Antarctic toothfish in the southern Ross Sea, February 2016, and notification for continuation in 2017
rates of sub-adult (<110 cm) toothfish for the core strata showed an increase to the highest point ... from age seven in 2012 to age nine in 2014 and to age ten for females in 2015. In 2016, the survey ... observed in the time series. Age frequency data from the surveys have shown the progression of a cohort ... length frequency distributions indicate than another stronger year class has entered the population with ...
Meeting Document : WG-SAM-16/14 : Auteur(s): A. Dunn, C. Jones, S. Mormede and S. Parker
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Calculating effective releases and recaptures for stock assessments based on tag detection and tagging mortality indices
developed using a methodology which controls for the spatial and temporal variability of fishing operations ... included in the stock assessment for the Ross Sea region and Amundsen Sea region, with the understanding ... pairwise method utilised an index of tag detection with an arbitrary threshold to determine which tag data ... estimate effective tag releases and effective numbers of fish inspected for tags based on those indices ...
Meeting Document : WG-SAM-14/30 : Auteur(s): S. Mormede (New Zealand)
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CONTINUING CCAMLR’S FIGHT AGAINST IUU FISHING FOR TOOTHFISH EXECUTIVE SUMMARY OF THE REPORT BY TRAFFIC INTERNATIONAL AND WWF AUSTRALIA
executive summary of a recent, soon to be published report produced by TRAFFIC International in conjunction ... with WWF Australia that presents a trade-based assessment of toothfish catch for the period of 2003 ... -2007 with a view to provide an indication of the extent of the IUU catch. The report highlights that in ... underestimating IUU catch by more than 50% annually. This analysis reinforces the need for ongoing vigilance by ...
Meeting Document : CCAMLR-XXVII/BG/38 : Auteur(s): Submitted by IUCN
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Estimates of the tag loss rates for single and double tagged toothfish (Dissostichus mawsoni) fishery in the Ross Sea
(95% C.I.s 0.027–0.052) tags per year. For double tagged fish this corresponds to 99.5% of double ... tagged fish having at least one tag remaining after one year at liberty; 98.9% after two years at liberty ... periods of up to six years at liberty. The loss rate for double tags had been incorrectly derived and ... -estimated for double tagged fish in the first four years and under-estimated after that. However, the tag ...
Meeting Document : WG-SAM-11/18 : Auteur(s): A. Dunn, M.H. Smith (New Zealand), D.J. Agnew (UK) and S. Mormede (New Zealand)
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Guidelines for fisheries-directed research addressing the Ross Sea region Marine Protected Area Research and Monitoring Plan
associated Research and Monitoring Plan (SC-CAMLR XXXVI-20) requires multidisciplinary research efforts by ... monitoring to evaluate the objectives of the MPA can be best informed. We review priority research topics ... criteria for fisheries-directed research proposed to inform the Research and Monitoring Plan. Author(s): S ... . Parker and A. Dunn Title: Guidelines for fisheries-directed research addressing the Ross Sea region ...
Meeting Document : WG-SAM-18/21 : Auteur(s): S. Parker and A. Dunn
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Guidelines for the Administration of the General Capacity Building Fund
development of the applicable pro-forma and draft Deed of Funding. These documents are attached. Author(s ... ): CCAMLR Secretariat Title: Guidelines for the Administration of the General Capacity Building Fund ... Document Release Consent: Yes Delegation responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : CCAMLR-38/BG/19 : Auteur(s): CCAMLR Secretariat
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A feasibility study for stock assessment of D. mawsoni in the Ross Sea (Subares 88.1 and 88.2) using a tag and recapture experiment
Abstract: This paper reports on a feasibility study into a tag and recapture experiment for the ... purpose of stock assessment of the Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea. An ... exploratory fishery for D. mawsoni has been operating since 1997-98. Catches have increased from ~40 t in 1997 ... 90% D. mawsoni) have been tagged and released in the area, from vessels operating in the exploratory ...
Meeting Document : WG-FSA-SAM 03/10 : Auteur(s): K.J. Sullivan, N.W.McL. Smith, J. McKenzie and S.M. Hanchet (New Zealand)
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The Antarctic toothfish: how common a prey for Weddell seals?
common (as evidenced by more than 30 years of sustained research projects on that toothfish population ... the quantity of toothfish captured lead us to suggest that this species is a significant prey item for ... ). Author(s): P.J. Ponganis and T.K. Stockard (USA) Title: The Antarctic toothfish: how common a prey for ...
Meeting Document : WG-EMM-07/P4 : Auteur(s): P.J. Ponganis and T.K. Stockard (USA)