Résultats de la recherche
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CASAL model evaluation incorporating the calculation of harvest rate for D. eleginoides at Division 58.4.4b
an exploration of the impact of Age Length Keys (ALK), CPUE standardization, and different scenarios ... catch at age data based on annual ALKs and data sources were weighted using an automatic procedure ... submitted by Japan and France (WG-SAM19/08), the CASAL models for Dissostichus eleginoides at Division ... -2019 suggestions (para 6.76 in the WG-SAM2019 report). A single-sex age structured CASAL model was ...
Meeting Document : WG-FSA-2019/62 : Auteur(s): T. Okuda and F. Massiot-Granier
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Draft integrated stock assessment for the Heard Island and McDonald Islands Patagonian toothfish (Dissostichus eleginoides) fishery in Division 58.5.2
Abstract: This paper presents an updated assessment for the Patagonian toothfish (Dissostichus ... -2018, and auxiliary commercial composition data to aid with the estimation of year class strength and ... the end of 2019 and observations until the end of 2018. The updated assessment model is based on the ... accepted by WG-FSA-17 to be used for management advice, this assessment takes into account (1) update the ...
Meeting Document : WG-FSA-2019/32 : Auteur(s): P. Ziegler
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Revised selectivities for Dissostichus eleginoides taken by longliners in Subarea 48.3
Abstract: Kirkwood and Agnew (2001, paper WG-FSA-01/48) proposed an ad hoc method for estimating ... method for estimating the selectivities based on an assumption that the proportions of the total CPUE in ... an area for a particular length class that are taken in different depth zones are Beta-distributed ... selectivities for the years 1995 – 2000 for input to the GYM assessment. In this paper, I propose a revised ...
Meeting Document : WG-FSA-02/64 : Auteur(s): G.P. Kirkwood (United Kingdom)
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Stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1991/91 season, using virtual population analysis
situation to assessments in 1989/90 with a decrease in overall biomass and recruitment over recent years ... Abstract: An assessment of the Champsocephalus gunnari fishery in sub-area 48.3 using VPA from ... 48.3 for the 1991/91 season, using virtual population analysis Approval: Approved ...
Meeting Document : WG-FSA-91/15 : Auteur(s): G. Parkes (United Kingdom)
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Report on attendance at the Sixth Meeting of the Committee for Environmental Protection Under the Madrid Protocol
the Committee for Environmental Protection (CEP-VI) under the Madrid Protocol. The most important ... (with those organizations) to seek a common approach as to how special protection for species in the ... marine environment could be achieved and how proposals under the Protocol for designating Specially ... ] the Commission for the Conservation of Antarctic Marine Living Resources, or the Convention for the ...
Meeting Document : CCAMLR-XXII/BG/11 : Auteur(s): Chair of the CCAMLR Scientific Committee
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SEASONAL ESTIMATION OF ABUNDANCE BY BOOTSTRAPPING INEXACT RESEARCH DATA (SEABIRD): A METHOD FOR ASSESSING ABUNDANCE AND UNCERTAINTY FROM HISTORICAL COUNT DATA USING ADELIE PENGUINS AS A CASE STUDY
Abstract: In addition to a review of published studies on Adelie penguin abundance at breeding ... sites in Antarctica, Southwell (2004) proposed a general abundance estimator appropriate for a species ... bootstrap model, utilising as input data published counts of Adelie penguins and estimates of their ... the R language for statistical computing (R Development Core Team 2008). Software is reliant on data ...
Meeting Document : WG-EMM-PSW-08/11 : Auteur(s): J.P. McKinlay and C.J. Southwell (Australia)
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A method for estimating recruitment and mortality from time series of length-density data
method for jointly estimating natural mortality and cohort strength at age 4 using a negative log ... years. A worked example is provided in an appendix. Author(s): A. Constable and I. Ball (Australia ... Abstract: Estimates of natural mortality are currently unavailable for Patagonian toothfish. Such ... estimates are needed for estimating recruitments and for use in assessing yield. This paper proposes a ...
Meeting Document : WG-FSA-00/52 : Auteur(s): A. Constable and I. Ball (Australia)
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Mackerel icefish Champsocephalus gunnari in the diet of upper trophic level predators at South Georgia: implications for fisheries management
Abstract: Mackerel Icefish Champsocephalus gunnari Lönnberg is an important component of the ... ecosystem at South Georgia where its diet is dominated by Antarctic Krill Euphausia superba, it is an ... important prey species for a number of upper trophic level predators, and is the target of commercial ... . gunnari population. C. gunnari occurred in 20 – 40 % of scats from Antarctic fur seals and comprised 48 ...
Meeting Document : WG-FSA-03/74 : Auteur(s): K. Reid, S. Hill and T. Diniz (United Kingdom)
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BIOLOGICAL PROSPECTING IN THE SOUTHERN OCEAN, A ROLE FOR CCAMLR
some CCAMLR provisions, in particular the Convention’s reporting requirements outlined in Article 20 ... . Last June, ATCM XXXI discussed the report from an Intersessional Contact Group (ICG) that was ... PROSPECTING IN THE SOUTHERN OCEAN, A ROLE FOR CCAMLR Approval: Approved ... and monitoring requirement pursuant to Article 2. Author(s): Submitted by IUCN Title: BIOLOGICAL ...
Meeting Document : CCAMLR-XXVII/BG/36 : Auteur(s): Submitted by IUCN
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Scientific justification for a marine protected area designation around the Balleny Islands to protect ecosystem structure and function in the Ross Sea region, Antarctica: progress report
Abstract: In 2000, the New Zealand delegation to CCAMLR proposed the designation of an Antarctic ... focus is on the CCAMLR values. A review of existing information reveals that the Balleny Islands are ... uniquely situated to provide essential breeding and foraging habitat for large populations of top predator ... activities and/or competition between predators and fisheries for available prey can be expected to have ...
Meeting Document : SC-CAMLR-XXIV/BG/25 : Auteur(s): Delegation of New Zealand