Résultats de la recherche
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The population ecology of seabirds at Svarthamaren, Dronning Maud Land: causes and consequences of variation in reproductive success of two long-lived seabirds species (Antarctic petrel and south polar skua) at Svarthamaren. An experimental approach
Title: The population ecology of seabirds at Svarthamaren, Dronning Maud Land: causes and ... consequences of variation in reproductive success of two long-lived seabirds species (Antarctic petrel and ...
Meeting Document : WG-CEMP-92/55
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Pêcheries de krill, pêcheries durables
;A re-appraisal of the total biomass and annual production of Antarctic krill". Deep-Sea Research ... I 56: 727–740. Wikipedia – Krill Will there be a new ‘Gold rush’ on krill? (The Marine Stewardship ...
Page : Site Section: Fisheries
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Report on fishing effort and seabird interactions during the season extension trials in the longline fishery for Patagonian toothfish (Dissostichus eleginoides) in Statistical Division 58.5.2
management of fisheries in CCAMLR (see e.g. Conservation Measure CM 25-02 and 41-08). Longline fishing in the ... , as the risk in the period of the three season extension trials is comparable to that in the existing ... relative to that in the core season and existing season extensions. The rate of seabird mortality in the ... vessel to demonstrate full compliance with Conservation Measure 25-02 in the previous season be removed ...
Meeting Document : WG-FSA-2019/31 : Auteur(s): P. Ziegler, T. Lamb, S. Wotherspoon and J. Dell
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Bulletin statistique de la CCAMLR , Vol. 24 (2002–2011)
pour la conservation de la faune et la flore marines de l'Antarctique (CCAMLR). Il est disponible sur papier ... FOR THE CONSERVATION OF ANTARCTIC MARINE LIVING RESOURCES STATISTICAL BULLETIN ... 1.3 Abbreviations for names of months and quarters used in the tables ... Table 1.5 Abbreviations for the names of species used in the tables ....................... 15 Table ... C CATCH HISTORIES OF SELECTED SPECIES Figure 4 Catch history of Euphausia superba in the Convention Area ...
Document : Site Section: Publications
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Albatross mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean
ill the problem is possible and that an overall reduction in excess of 90% could be achieved. Further ... Abstract: A conservative calculation of the number of albatrosses killed annually on Japanese ... longlines in southern oceans in 44 000. The actual figure could be double and is sufficiently high to ... mortality and associated bait loss in the Japanese longline fishery in the Southern Ocean Approval ...
Meeting Document : WG-IMALF-94/06 : Auteur(s): Brothers, N. 1991. Biol. Conservation, 55: 255-268.
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
considered. Fishing in summer (near-coincident with the period of krill growth), or throughout the year ... , allows a greater catch (for the same risk of depletion) than in the case of fishing in winter. Author(s ... Abstract: The results of Butterworth et al. (1991) relating potential krill yield to a pre ... -exploitation survey estimate of krill biomass are extended as specified by the Third Meeting of Working Group ...
Meeting Document : WG-KRILL-92/04 : Auteur(s): D.S. Butterworth, G.R. Gluckman and S. Chalis (South Africa)
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
relate potential krill yield to a pre-exploitation survey estimate of krill biomass. In this paper, the ... Paper Title: Further computations of the consequences of setting the annual krill catch limit to ... a fixed fraction of the estimate of krill biomass from a survey Abstract / Description: Butterworth ... et al. (1992) put forward an extension of the harvesting model of Beddington and Cooke (1983) to ... -exploitation survey estimate of krill biomass. In this paper, the approach is extended further so as to ... Meeting, results in marked reductions in the probabilities of krill spawning biomass falling below ... summary of the implicat ions of the analysis calculations for the parameter h in the yield (SC-CAMLR ... growth curve of Rosenberg et al. (1986): where P, = 60 mm p = 0.45 yr-' a is the age of the krill in ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 81–106 : Auteur(s): Butterworth, D.S., G.R. Gluckman, R.B. Thomson, S. Chalis, K. Hiramatsu and D.J. Agnew
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The error of the biomass estimate as a function of survey parameters and the statistics of a density field of krill aggregations
Abstract: Simple relationships expressing dependence of sampling relative error in biomass ... examination and on parameters of survey itself, have been derived with the help of mathematical statistics and ... depends, and direction of survey with respect to the axis of the correlation ellipse and frequency of ... a posteriori estimation of error made when calculating biomass, and for survey planning on the basis ...
Meeting Document : SC-CAMLR-VI/BG/39 : Auteur(s): Z.I. Kizner (USSR)
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Further computations of the consequences of setting the annual krill catch limit to a fixed fraction of the estimate of krill biomass from a survey
Abstract: The results of Butterworth et al. (1992) relating potential krill yield to a pre ... -exploitation survey estimate of kril1 biomass are extended to incorporate most of the amendments specified by ... the Third and Fourth Meetings of Working Group on Krill. The most important of these extensions is ... integration over the ranges of uncertainty for a number of the model parameters. Results are provided for the ...
Meeting Document : WG-KRILL-93/42 : Auteur(s): D.S. Butterworth, G.R. Gluckman, R.B. Thomson and S. Chalis (South Africa)
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VME detection thresholds: provision of a beta version of a R library to compute detection probabilities and preliminary results on the case of the sea pens (Pennatulacea) of the CCAMLR Division 58.4.4b
of sea pens (Pennatulacea, NTW, VME bioindicator) in the 58.4.4b sector have been reported during the ... elements of a study centered on the case of the sea pens, and based on the data collected in the 58.4.4b ... , the data are reported to the Secretariat to inform the CCAMLR about the potential presence of VME to ... CCAMLR SAM Working Group 2018. However, despite the important level of the catches, no VME detection ...
Meeting Document : WG-FSA-2019/46 : Auteur(s): A. Martin and M. Eléaume