Search results
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Integrating CPUE with the GY model: examination of the effects of shortening the CPUE series and incorporating elements of uncertainty into the D. eleginoides assessment of Subarea 48.3
Abstract: This year the Subgroup on assessment methods (SAM) requested that WG-FSA consider ... towards the more recent years. The use of the standardised series from the GLMM of Candy (2003) shows ... the depletion probability decreases as the time series is reduced to recent years. In contrast, the explicit ... This year the Subgroup on assessment methods (SAM) requested that WG-FSA consider whether a shorter ...
Meeting Document : WG-FSA-03/96 : Author(s): I.R. Ball, S. Candy and A.J. Constable (Australia)
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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 : Author(s): C. Darby, T. Earl and H. Peat (United Kingdom)
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Note on maturity of krill in relation to interannual fluctuations of food environment in the seas around the South Shetland Islands
. 5 years data from commercial krill trawlers indicates that percentages of occurrence of gravid female ... than 2um was high, feeding activity of krill was also high in the natural environment. 5 years data ...
Meeting Document : WG-KRILL-93/27 : Author(s): M. Naganobu and S. Kawaguchi (Japan)
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Comparison of temperature situation near South Georgia in December–February, 1989–1990, 1990–1991, 1999–2000 and 2000–2001 on satellite data and information about krill catches in Subarea 48.3
fishery in Subarea 48.3 for the entire coming year already by the summer season onset. Reliability ... 48.3 for the entire coming year already by the summer season onset. Reliability of the krill fishery ...
Meeting Document : WG-EMM-01/11 : Author(s): G. Vanyushin (Russia)
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Systematic Coverage’ by scientific observers on Krill Fishing Vessels
Abstract: A work plan to establish an observer scheme for krill fishery was agreed at the ... the observers. In this document, Japan proposes a framework for scientific observer system for krill ... Coverage’ by scientific observers on Krill Fishing Vessels Approval: Approved ...
Meeting Document : WG-EMM-08/34 : Author(s): Delegation of Japan
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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 ... follows concerning the ramifications of calibration errors and variability on the accuracy of acoustic ... biomass estimation. Author(s): D.A. Demer and R.P. Hewitt (USA) Title: Calibration of an acoustic echo ...
Meeting Document : WG-KRILL-92/17 : Author(s): D.A. Demer and R.P. Hewitt (USA)
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Modelling the impact of krill fishing on seal and penguin colonies
Abstract: A key area of concern highlighted by the Scientific Committee of the Commission for the ... question is therefore whether or not limitations on fishing activities (reducing their economic efficiency ... predator colonies. In order to estimate the krill production actually available for predator consumption ... the fishery and predators, in an attempt to quantify what level and localisation of the fishing effort ...
Meeting Document : WG-EMM-05/14 : Author(s): É.E. Plagányi and D.S. Butterworth (South Africa)
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Problems in estimating population length at age from commercial catches, the Patagonian toothfish as an example
Abstract: Age based fishery population models require information on size at age of the fished ... 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 ...
Meeting Document : WG-FSA-01/17 : Author(s): I. Everson (United Kingdom)
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Preliminary assessment of mackerel icefish (Champsocephalus gunnari) for the Heard Island Plateau region (Division 58.5.2) based on a survey in May 2004
in the vicinity of Heard Island in May 2004 to provide the information for an assessment of short ... gunnari) for the Heard Island Plateau region (Division 58.5.2) based on a survey in May 2004 Approval ... using the assessment methods of CCAMLR for SAFAG 21. Author(s): C.R. Davies, T. Lamb, A.J. Constable ...
Meeting Document : WG-FSA-04/77 : Author(s): C.R. Davies, T. Lamb, A.J. Constable and R. Williams (Australia)
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CCAMLR-IWC WORKSHOP TO REVIEW INPUT DATA FOR ANTARCTIC MARINE ECOSYSTEM MODELS: UPDATE ON PROGRESS 2008
with funding limited to one expert from each group, some experts that cover a number of groups and a group ... with funding limited to one expert from each group, some experts that cover a number of groups and a group ...
Meeting Document : WG-EMM-08/15 : Author(s): A. Constable and N. Gales (Co-conveners)