Résultats de la recherche
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Data required for implementation of management options
Author(s): M. Basson and J.R. Beddington (United Kingdom) Title: Data required for implementation of management options Approval: Approved
Meeting Document : WS-CRAB-93/06 : Auteur(s): M. Basson and J.R. Beddington (United Kingdom)
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A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia
Author(s): M. Basson (United Kingdom) Title: A preliminary investigation of the possible effects of rhizocephalan parasitism on the management of the crab fishery around South Georgia Approval: Approved
Meeting Document : WS-CRAB-93/07 : Auteur(s): M. Basson (United Kingdom)
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Uncertainty, resource exploitation, and conservation: lessons from history
Author(s): D. Ludwig, R. Hilborn and C. Walters (USA) Title: Uncertainty, resource exploitation, and conservation: lessons from history Approval: Approved
Meeting Document : WS-CRAB-93/08 : Auteur(s): D. Ludwig, R. Hilborn and C. Walters (USA)
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Modelling crustacean fisheries: effects of parasites on management strategies
Abstract: The reproductive performance of commercially important crustaceans may be considerably affected by symbiotic nemertean egg predators and parasitic castrators. Because these parasites commonly affect only females or feminize males, they may be protected by management practices that
Meeting Document : WS-CRAB-93/09 : Auteur(s): A.M. Kuris and K.D. Lafferty (USA)
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Change-in-ratio and index-removal methods for population assessment and their application to snow crab (Chionoecetes opilio)
Abstract: Change-in-ratio and index-removal estimators are presented in a general form suitable for fisheries studies. We also show how to combine the two approaches in a single estimator. It is necessary to sample the population before and after the fishery, and to determine the total harvest and
Meeting Document : WS-CRAB-93/10 : Auteur(s): X. Xu, E.G. Dawe and J.M. Hoenig (USA)
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Relative selectivity of four sampling methods using traps and trawls for male snow crabs (Chionoecetes opilio)
deployed during the day. and (4) bottom trawl deployed at night. Catches were characterized in terms of ... , were larger than those caught in the trawl; the size of crabs caught in the trawl at night was larger ...
Meeting Document : WS-CRAB-93/11 : Auteur(s): J.M. Hoenig and E.G. Dawe (USA)
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Leslie analyses of commercial snow crab trap data: a comparative study of catchability coefficients
between catch rate at the beginning of the season and the corresponding population estimate obtained by ...
Meeting Document : WS-CRAB-93/13 : Auteur(s): J.M. Hoenig, E.G. Dawe, D.M. Taylor, M. Eagles and J. Tremblay (USA)
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Commercial vessel daily activity logbook
Author(s): USA Title: Commercial vessel daily activity logbook Approval: Approved
Meeting Document : WS-CRAB-93/15 : Auteur(s): USA
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The preparation of recommendations and standard procedures for krill acoustic surveys
Abstract: Acoustic surveys are the most powerful tool of krill abundance estimation and distribution mapping. The International Community needs to prepare standard requirements and procedures for acoustic instrumentations to be used, as well as for survey design, data acquisition, processing,
Meeting Document : WG-KRILL-93/5 Rev. 1 : Auteur(s): W.D. Tesler (Russia)
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Further analysis of target strength measurements of Antarctic krill at 38 and 120 kHz: comparison with deformed cylinder model and inference of orientation distribution
be made at each frequency. By requiring that the differencebetween predicted and measured target ... analysis of target strength measurements of Antarctic krill at 38 and 120 kHz: comparison with deformed ...
Meeting Document : WG-KRILL-93/06 : Auteur(s): D. Chu (USA), K.G. Foote (Norway) and T. K. Stanton (USA)