Résultats de la recherche
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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
having an almost negligible impact on the stock. Author(s): C. Darby, T. Earl and H. Peat (United ... harvest control rule for the mackerel icefish (Champsocephalus gunnari) in Subarea 48.3 are described. The ... 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)
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Problems in estimating population length at age from commercial catches, the Patagonian toothfish as an example
and may be seriously biased. Through the use of a model, and using the Patagonian toothfish as an ... population length at age from commercial catches, the Patagonian toothfish as an example Approval: Approved ... Abstract: Age based fishery population models require information on size at age of the fished ...
Meeting Document : WG-FSA-01/17 : Auteur(s): I. Everson (United Kingdom)
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An examination of latitudinal variation in the growth rates of Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea
collected between 67 and 74° S, an investigation to test for latitudinal differences in growth rates was ... latitudinal differences in growth rates for relatively sedentary fish are likely to be blurred by migration ... between latitudes. Author(s): P.L. Horn (New Zealand) Title: An examination of latitudinal variation in ... . mawsoni between 62.5° and 75° S. However, fish between the ages of 6 and 15 years in the southernmost zone ...
Meeting Document : WG-FSA-03/30 : Auteur(s): P.L. Horn (New Zealand)
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Calibration of an acoustic echo-integration system in a deep tank, with system gain comparisons over standard sphere material, water temperature and time
Abstract: This paper outlines the theory and procedures for calibrating an echo integration ... acoustic system with a standard sphere. It presents the results of an extensive calibration of a Simrad ... biomass estimation. Author(s): D.A. Demer and R.P. Hewitt (USA) Title: Calibration of an acoustic echo ... follows concerning the ramifications of calibration errors and variability on the accuracy of acoustic ...
Meeting Document : WG-KRILL-92/17 : Auteur(s): D.A. Demer and R.P. Hewitt (USA)
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The Southern Ocean Observing System (SOOS): an update
in implementation of the SOOS, for example through the CCAMLR Ecosystem Monitoring Programme (CEMP ... ). CCAMLR are invited to appoint an ex-officio representative to the SOOS Steering Committee. A SOOS Initial ... Science and Implementation Strategy will be published in October 2011, an International Project Office has ... , and an Executive Officer, Louise Newman has been appointed. Currently, a website is being developed ...
Meeting Document : CCAMLR-XXX/BG/13 : Auteur(s): A joint submission by SCAR and SCOR
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THE AUTOLINE SYSTEM – AN UPDATED DESCRIPTIVE REVIEW OF THE METHOD WITH RECOMMENDATIONS TO CLARIFY CCAMLR CONSERVATION MEASURES REGULATING LONGLINE FISHERIES WITHIN THE CONVENTION AREA
Autoline Vessels Fishing for Toothfish in CCAMLR Waters. Additional information is included listing and ... gear (a ‘line’) for longlines is proposed for the purposes of regulation and management. Current ... changes are suggested clarify understanding of these measures. The paper includes a recommendation for a ... SYSTEM – AN UPDATED DESCRIPTIVE REVIEW OF THE METHOD WITH RECOMMENDATIONS TO CLARIFY CCAMLR CONSERVATION ...
Meeting Document : WG-FSA-08/60 : Auteur(s): J.M. Fenaughty (New Zealand)
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Estimating prey consumption of the non-breeder component of an Adélie penguin population
as an element in CCAMLR’s ecosystem-based approach to management for the krill fishery in the ... Southern Ocean. Previous assessments of prey consumption for seabirds have focussed on breeders using data ... Abstract: Estimating the consumption of prey by higher-order predators is a priority for WG-EMM ... of an Adélie penguin population can be substantial compared with the size of the breeder population ...
Meeting Document : WG-EMM-17/12 : Auteur(s): L. Emmerson and C. Southwell
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Development of an algorithm designed to assess observer data quality and performance
arising from the CCAMLR SISO, an algorithm was designed to automatically import and check data entered by ... , as well as value inconsistencies through a limited set of logical tests. For each logbook inspected ... weight of toothfish, and, an overall data entry quality score, are automatically generated. The first ... invalidates automated data processing routines. Author(s): Secretariat Title: Development of an algorithm ...
Meeting Document : WG-SAM-13/40 : Auteur(s): Secretariat
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Description of an AD Model Builder implementation of the exact time of release and recapture stock assessment model of Tuck et al. (2003)
Abstract: Tuck et al. (2003) describe an exact time of release and recapture stock assessment ... , 3.127). The maximum likelihood estimation for this model has more recently been implemented in the AD ... derived outputs for this implementation. Author(s): S.G. Candy, A.J. Constable and D. Erceg (Australia ... ) Title: Description of an AD Model Builder implementation of the exact time of release and recapture ...
Meeting Document : WG-FSA-04/75 : Auteur(s): S.G. Candy, A.J. Constable and D. Erceg (Australia)
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Krill Spill: An opportunistic approach to collecting penguin diet and krill length data
opportunistic data collection methods as an alternate approach. Data on diet composition and krill length were ... of the methods. A pilot study was conducted at Esperanza Station for the 2017/18 season to consider ... Title: Krill Spill: An opportunistic approach to collecting penguin diet and krill length data ... Delegation responsibility for releasing documents: CCAMLR Secretariat ...
Meeting Document : WG-EMM-18/45 : Auteur(s): E. Grilly, M. Santos, K. Reid and A. Silvestro