Résultats de la recherche
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Contrôle des filets sur les navires norvégiens de pêche au krill, essais récents, et proposition d'amendement de la MC 25-03 visant à permettre la communication câblée entre les capteurs du chalut et le navire
not successful. Extensive monitoring of bird interactions reflected in observer reports suggests that ... this particular rigging is compatible with the main objectives of CM 25-03, i.e. minimizing the ... incidental mortality of, or injury to, seabirds and marine mammals during trawl fishing. As requested in a ... also summarizes earlier experiments on the FV Saga Sea. Based on the recognized need and utility of net ...
Meeting Document : SC-CAMLR-38/18 : Auteur(s): O.A. Bergstad
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Archival and satellite-linked data recorders
provides an overview of currently-available data recorders for use in research on marine animals. These ... recorders are deployed on freely swimming animals and gather data on aspects of an animal’'s diving ... behaviour. The records can be recovered in one of two ways: the data recorder must either be recovered ... intact, or the data recorder must be capable of disseminating its data via a radio link, such as the ... DATA RECORDERS R.D. Hill (USA) Abstract This paper provides an overview of currently-available ... animals and gather data on aspects of an animal's diving behaviour. The records can be recovered in one ... of two ways: the data recorder must either be recovered intact, or the data recorder must be ... capable of disseminating its data via a radio link, such as the ARGOS satellite system. Recorders can be ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/4 (Selected Scientific Papers, SC-CAMLR-SSP/4) : 475-493 : Auteur(s): Hill, R.D.
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Aspects méthodiques d'une campagne internationale d'évaluation du krill à grande échelle en 2019 : Commentaires et propositions
Abstract: Methodical aspects of a large-scale international survey in 2019 are discussed in the ... context of stated objectives. The main sources of uncertainty in the results of the 2019 survey are shown ... . Author(s): Delegation of the Russian Federation Title: Methodical Aspects of a Large-scale ...
Meeting Document : SC-CAMLR-XXXVII/16 : Auteur(s): Делегация Российской Федерации
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2006/07 season
Abstract: We provide an update of the Bayesian sex and age structured population stock assessment ... model resulted in a slightly lower estimate of initial biomass than the 2006 base case. The inclusion of ... the 2007 recaptures of 2006 tags released had the most substantive impact on the model estimates ... . Models using tag-recapture data from all vessels are also presented. Inclusion of all vessels tagging ...
Meeting Document : WG-FSA-07/37 : Auteur(s): A. Dunn and S.M. Hanchet (New Zealand)
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Characterising the preferred at-sea habitats used by chinstrap penguins and the fishery for Antarctic krill: slow-flowing, nearshore waters over shallow bathymetry
of chinstraps breeding at the South Shetland Islands, based on the distance from the colony, and the ... bearing to the shelf edge, adjusting for the at-sea density of Pygoscelis penguins from other colonies ... locations of animals during the breeding season from untracked colonies, even in different regions and ... bathymetry, but that they also sometimes move towards the edge of the continental shelf where the faster ...
Meeting Document : WG-EMM-17/34 : Auteur(s): P.N. Trathan, V. Warwick-Evans, J. Hinke, E.F. Young, A.P.B. Carneiro, M.P. Dias, K. Kovacs, O.R. Godø and M. Santos
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Monitoring and management in the Antarctic – making the link between science and policy
Abstract: Management of human impacts in the Antarctic requires an effective system of monitoring ... to provide information about the process being managed and the effectiveness of management actions ... . Human impacts arise as a result of processes that originate in the region (endogenous) and those that ... originate outside the region (exogenous). A number of monitoring programmes have been established in both ...
Meeting Document : WG-EMM-07/P9 : Auteur(s): K. Reid (United Kingdom)
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Simulation experiments and CCAMLR yield estimates using CASAL
, 2004) and investigate model performance from alternative types of observations. In general, most models ... were fitted with an expected percent root mean squared error (%RMSE) of less than 20%. The inclusion of ... the expected performance of integrated models is required that investigates a range of alternative ... “true” states with data that includes bias and variance in observations, as well as the robustness of ...
Meeting Document : WG-FSA-SAM-05/9 : Auteur(s): A. Dunn (New Zealand)
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Depletion-based stock reduction analysis: a catch-based method for determining sustainable yields for data-poor fish stocks
for data-poor fisheries in cases where approximate catches are known from the beginning of ... -Reduction Analysis with Depletion-Corrected Average Catch. Data requirements include estimates of historical ... specified based on general fishery knowledge of the relative location of maximum productivity and the ... relationship of MSY fishing rate to the natural mortality rate. This leaves unfished biomass as the only ...
Meeting Document : WG-SAM-11/P2 : Auteur(s): E.J. Dick and A.D. McCall
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Potential VMEs around Elephant and the South Shetland Islands (Subarea 48.1)
in the South Shetland Islands area. High biomass densities of VME indicator taxa, meeting the 10 kg ... ascidians) such that communities of many ‘light’ VME taxa have little to no chance of meeting this criterion ... types of communities where sponges and other heavy taxa occur. A clear example can be made of CITES ... high biomass-density station and even large colonies of which weigh relatively little. After applying ...
Meeting Document : WG-EMM-12/51 : Auteur(s): S.J. Lockhart (USA), N. Wilson (Australia) and E. Lazo-Wasem (USA)
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Spanish research proposal for the 2016/17 season in Division 58.4.1
Abstract: In the 2012/13 fishing season Spain began the implementation of a multi-annual Research ... Plan for Divisions 58.4.1 and 58.4.2 in order to estimate local biomass of Dissostichus spp. by means ... of two methods: depletion and tagging. Although a big effort has been placed for their accomplishment ... , results have to be analyzed in the coming months but some doubt about the reliability of data could be ...
Meeting Document : WG-SAM-16/10 : Auteur(s): Delegation of Spain