Résultats de la recherche
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Effect of orientation on broadband acoustic scattering of Antarctic krill Euphausia superba: implications for inverting zooplankton spectral acoustic signatures for angle of orientation
animal-specific empirical model space was best able to invert for angle of orientation. The CMVC ... and video footage from several Antarctic krill were carried out to determine the effect of animal ... pattern of changes in echo spectra with orientation for the experimentally measured acoustic returns was ... acoustic returns for angle of orientation by applying a newly developed Co variance Mean Variance ...
Meeting Document : WG-EMM-99/41 : Auteur(s): L.V. Martin Traykovski (USA), R.L. O’Driscoll (New Zealand) and D.E. McGehee (USA)
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Brief report on results of experimental harvest regime for the exploratory fishery for crab in the area of the South Orkney Islands (CCAMLR Subarea 48.2) during the 2009/10 season
. Anosov (Ukraine) Title: Brief report on results of experimental harvest regime for the exploratory ... harvest regime for the exploratory fishery for crab by traps was carried out for the first time in ... area is extremely low; and it is economically inexpedient to conduct fisheries for bottom organisms at ... fishery for crab in the area of the South Orkney Islands (CCAMLR Subarea 48.2) during the 2009/10 season ...
Meeting Document : WG-FSA-10/44 : Auteur(s): Yu.V. Korzun and S.E. Anosov (Ukraine)
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Notes on the use of virtual population analysis for stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1990/91 and 1991/92 seasons
, dominated in recent years by the 1987 year class (1 year olds in 1988), was quite robust, despite the use of ... was composed of a large proportion of 5 year olds, which was not observed during the survey on ... approach to management for 1992/93 is recommended, based on the results of surveys by Falklands Protector ... various combinations of survey and cpue indices for tuning. According to the VPA the population in 1991/92 ...
Meeting Document : WG-FSA-92/27 : Auteur(s): G. Parkes (United Kingdom)
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Evaluation of de la Mare’s composite standardised index for generating a simple time-series summary of many long-term datasets on Antarctic predators: consequences of missing values and criteria for inclusion of predator parameters
parameters being representative of all the parameters for that year. Clearly, this will depend on how ... the Workshop on Area 48) to WG-EMM for generating a simple time-series index of many long-term ... datasets on Antarctic predators. The value of the index in a given year is dependent on the specific ... parameters present in that year. In this respect, the robustness of the index is dependent on that subset of ...
Meeting Document : WG-EMM-98/45 : Auteur(s): A. Constable (Australia)
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Proposed methodology for the assessment of the exploratory fishery for Dissostichus spp. on BANZARE Bank (Division 58.4.3b)
welcome recommendations from WG-SAM as to the most productive way forward to an assessment for this ... Scientific Committee requested urgent consideration by Members on of methods for collecting of data and of ... developing management advice for the stocks of Dissostichus and major bycatch species on BANZARE Bank. We ... Dissostichus fisheries in the southern Indian Ocean (58.4) which gave cause for concern as to the status of the ...
Meeting Document : WG-SAM-07/8 : Auteur(s): D.C. Welsford, A.J. Constable and G.B. Nowara (Australia)
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Considerations on the design and evaluation of surveys for estimating recruitment of Patagonian toothfish (Dissostichus eleginoides) with preliminary outcomes for the Heard Island plateau region (Division 58.5.2)
levels of confidence in the estimates of abundance for all but the youngest year class. It is recommended ... for meeting long-term yield and conservation objectives. An approach to progressing such evaluations ... setting of total allowable catches (TAC) for Patagonian Toothfish, Dissostichus eleginoides, for the Heard ... surveys (RSTS) and from targeted commercial fishing operations via an observer program. The current RSTS ...
Meeting Document : WG-FSA-SAM-04/19 : Auteur(s): Candy, S., Constable, A.J., Davies, C.R.
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Proposal to trial daylight setting on longliners fishing for Dissostichus eleginoides for a 10 day period during the middle of winter during the fishing season in Subarea 48.3
Kingdom) Title: Proposal to trial daylight setting on longliners fishing for Dissostichus eleginoides for ... requesting the option to be able to set during daylight in Subarea 48.3 for safety reasons. Recurrent ... as an avoidance technique. This paper proposes a 10 day trial (per vessel) of daylight setting ...
Meeting Document : WG-IMAF-11/08 : Auteur(s): J. Brown (United Kingdom)
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Report of the Steering Committee for the WG-EMM Workshop on Plausible Ecosystem Models for Testing Approaches to Krill Management
“Workshop on plausible ecosystem models for testing approaches to krill management” in preparation for the ... advice on the potential contributions from experts in preparation for the workshop and in participating ... the Steering Committee for the WG-EMM Workshop on Plausible Ecosystem Models for Testing Approaches to ... marine ecosystems, (ii) to consider plausible operating models for the Antarctic marine ecosystem, and to ...
Meeting Document : WG-EMM-04/25
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PROGRESS TOWARDS EXPERT GROUP MANUSCRIPTS FOR THE CCAMLR-IWC WORKSHOP TO REVIEW INPUT DATA FOR ANTARCTIC MARINE ECOSYSTEM MODELS: UPDATE ON PROGRESS 2008
the CCAMLR-IWC Workshop to review input data for Antarctic marine ecosystem models: update on progress ... will be available for review at WG-EMM or from the convenors on request. Author(s): A. Constable and N ... REVIEW INPUT DATA FOR ANTARCTIC MARINE ECOSYSTEM MODELS: UPDATE ON PROGRESS 2008 Approval: Approved ... Abstract: This document summarises progress by expert groups towards having manuscripts ready for ...
Meeting Document : WG-EMM-08/47 : Auteur(s): A. Constable and N. Gales (Co-conveners)
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Progress report on the plans for the Russian contribution for the CCAMLR Synoptic Survey
Ecosystem Monitoring and Management (WG-EMM-99) a progress report on the plans for the Russian contribution ... presented. Author(s): Delegations of Russia and the United Kingdom Title: Progress report on the plans for ... for the CCAMLR Synoptic Survey is given. A stratified survey design for the operation by Russian RV ... the Russian contribution for the CCAMLR Synoptic Survey Approval: Approved ...
Meeting Document : SC-CAMLR-XVIII/BG/22 : Auteur(s): Delegations of Russia and the United Kingdom