Résultats de la recherche
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An exact time of release and recapture stock assessment model applied to Macquarie Island Patagonian toothfish (Dissostichus eleginoides)
Abstract: This paper presents an assessment of the harvested population of Patagonian toothfish ... (the "selectivity model") attempts to account for apparent decreasing availability with ... length. It assumes a maximum age or length above which a fish is no longer available to the gear. Each ... age. Once this time has elapsed, the fish is removed from the analysis. The base-case model estimated ...
Meeting Document : WG-FSA-00/43 : Auteur(s): G. Tuck, W. de la Mare, W. Hearn, R. Williams, A. Smith, X. He and A. Constable (Australia)
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Demersal fishing interactions with marine benthos in the Southern Ocean: an assessment of the vulnerability of benthic habitats to impact by demersal gears
shelf • An assessment of the vulnerability of benthic habitats to impact by demersal gears in the Sub ... -Antarctic and high latitudes of the Southern Ocean • Recommendations for practical mitigation strategies to ... trawl on longline gear, and the footage captured indicates there is great potential for such systems to ... ): Delegation of Australia Title: Demersal fishing interactions with marine benthos in the Southern Ocean: an ...
Meeting Document : SC-CAMLR-XXVI/BG/30 : Auteur(s): Delegation of Australia
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An acoustic estimation of krill densities to the north of South Georgia in January 1994
densities in both regions were extremely low in comparison with previously published density estimates, and ... provide further evidence of an extreme krill paucity around South Georgia in the 1993/4 season. Author(s ... ): Watkins, J.L., Brierley, A.S. Title: An acoustic estimation of krill densities to the north of South ...
Meeting Document : WG-EMM-95/74 : Auteur(s): Watkins, J.L., Brierley, A.S.
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An updated assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity and extension taking commercial catch-at-length data into account
available over the past year. This leads to an improved picture of resource status compared to a year ... Abstract: The CPUE-based Age-Structured Production Model (ASPM) assessment of this resource by ... are at variance with the observed length frequency distributions for the fishery. It is important that ... important consequences for the assessments of other populations of toothfish in the CCAMLR region. Author(s ...
Meeting Document : WG-FSA-02/76 : Auteur(s): A. Brandão, D.S. Butterworth, B.P. Watkins and L. Staverees (South Africa)
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Emperor penguins – vulnerable to projected rates of warming and sea-ice loss; an international collaboration to inform species-related conservation decision-making and conservation planning
Abstract: An international group of scientists, from the United Kingdom, Australia, Finland ... data and having experience of working with emperor penguins have formed an international collaboration ... to review the dependence and vulnerability of emperor penguins to ongoing and projected climate ... implications for species-related conservation decision-making and conservation planning. Author(s ...
Meeting Document : SC-CAMLR-38/BG/10 : Auteur(s): Delegations of the United Kingdom, Australia, France, Germany, SCAR and ASOC
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An Apparent Decrease in the Prevalence of “Ross Sea Killer Whales” in the Southern Ross Sea
-effort of scientific fishing for toothfish in McMurdo Sound, we suggest and review evidence that the ... , Antarctic ecosystem; the type-C is referred to as “Ross Sea [RS] killer whale”. Herein, we review data on ... large Antarctic toothfish (Dissostichus mawsoni), as the review herein demonstrates. On the basis of sea ... very abundant penguin, seal and whale components, loss of the toothfish option for Ross Sea killer ...
Meeting Document : WG-EMM-09/P01 : Auteur(s): D.G. Ainley, G. Ballard and S. Olmastroni
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A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands EEZ
Abstract: The history of the fishery for Patagonian toothfish in the Prince Edward Islands EEZ is ... trend. Application of a simple age-structured production model provides robust indication that the ... suggest that the annual TAC should be reduced to at most about 400 tonnes. Implications for surveillance ... ) Title: A first attempt at an assessment of the Patagonian toothfish (Dissostichus eleginoides) resource ...
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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Influence of tag numbers, size of tagged fish, duration of the tagging program, and auxiliary data on bias and precision of an integrated stock assessment
estimate annual recruitment and year class strengths. (3) For a simulated lightly fished stock, CASAL ... Abstract: Using a modeling framework for toothfish population dynamics, fishing and data ... numbers were important particularly in the early stages of an exploratory fishery to ensure some ... recaptures and maximise the likelihood of a robust assessment. (2) Using catch-at-age data instead of catch ...
Meeting Document : WG-SAM-12/24 : Auteur(s): P.E. Ziegler (Australia)
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Report of an examination of the acoustic data from RV Eduardo L. Holmberg collected during the FIBEX study
Abstract: Data from the Eduardo L Holmberg FIBEX survey have been re-examined for incorporation ... : Report of an examination of the acoustic data from RV Eduardo L. Holmberg collected during the FIBEX ...
Meeting Document : WG-KRILL-93/20 : Auteur(s): I. Everson (United Kingdom) and A.O. Madirolas (Argentina)
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An evaluation of the performance of the CCAMLR mackerel icefish (Champsocephalus gunnari) harvest control rule as applied within CCAMLR Subarea 48.3
harvest control rule for the mackerel icefish (Champsocephalus gunnari) in Subarea 48.3 are described. The ... review indicates that the approach is providing consistent, precautionary estimates of future biomass and ... having an almost negligible impact on the stock. Author(s): C. Darby, T. Earl and H. Peat (United ... Kingdom) Title: An evaluation of the performance of the CCAMLR mackerel icefish (Champsocephalus gunnari ...
Meeting Document : WG-SAM-13/31 Rev. 1 : Auteur(s): C. Darby, T. Earl and H. Peat (United Kingdom)