Résultats de la recherche
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Distribution and abundance of Antarctic krill (Euphausia superba) off East Antarctic (30–80°E) in January–March 2006
-2. B0 was estimated to be 12.46 million tonnes with a CV of 15.15%. Krill were widely distributed at ... of Division 58.4.2 for the purposes of estimating the unexploited biomass (B0) of Antarctic krill ... (Euphausia superba) and its associated coefficient of variance (CV). This paper updates the version submitted ... to WG-EMM in 2006 (WG-EMM-06/16) because a reanalysis of the data has resulted in amendments to the ...
Meeting Document : WG-EMM-07/33 : Auteur(s): T. Jarvis, N. Kelly, E. van Wijk, S. Kawaguchi and S. Nicol (Australia)
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IMPLEMENTATION OF FISHERY CONSERVATION MEASURES IN 2009/10
Abstract: Table of Contents Topic Page Introduction 1 Fisheries in 2009/10 1 Fishery monitoring 3 ... -02 7 Preliminary assessments of impacts of bottom fishing CM 22-06 7 Krill fisheries notified under ... 2009/10 9 INTRODUCTION 1. Conservation Measures (CM) and resolutions adopted at CCAMLR-XXVIII were ... 2010. These CMs and resolutions were published in the Schedule of Conservation Measures in Force in ...
Meeting Document : CCAMLR-XXIX/BG/10 : Auteur(s): Secretariat
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Summer distribution, abundance and structure of krill populations (Euphausia superba and Euphausia crystallorophias) sampled by plankton net in the western Ross Sea (January–February 2000)
) were analysed to obtain a general picture of the summer distribution pattern, abundance and demography ... of krill in the western Ross Sea (Antarctica). A midwater sampler-trawl (Hamburg Plankton Net) was ... used to collect zooplankton and fish larvae at 63 stations. The net was deployed normally as a standard ... double oblique tow. Mean relative biomass of Antarctic krill Euphausia superba, in the area north of ...
Meeting Document : WG-EMM-00/38 : Auteur(s): M. Azzali, A. Sala and G. Brancato (Italy)
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ECOSYSTEM SERVICES OF THE SOUTHERN OCEAN
the Southern Ocean ecosystem is generally under-represented in assessments of ecosystem services at ... Abstract: The Southern Ocean is a globally important marine region, providing a range of ... ecosystem services which support human life, health and well-being, including the provision of marine living ... resources, and the regulation of global climate and sea level. Assessing ecological processes in terms of ...
Meeting Document : WG-EMM-11/21 : Auteur(s): S.M. Grant, S.L. Hill and P.N. Trathan (UK)
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Proposal for the removal of night setting requirement for autoline vessels fishing in Division 58.5.2
fishing in Division 58.5.2 to occur at any time of the day/night cycle. The proposal forms part of an ... adaptive approach to management, which considers the risk status of the fishery, knowledge on the ... effectiveness of mitigation measures, mitigation performance record of the vessel, seabird mortality levels and ... assessment of the likely effects of individual mitigation measures to total mitigation response. Since the ...
Meeting Document : WG-FSA-04/73 : Auteur(s): G. Robertson and B. Baker (Australia)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
caught at deeper waters and have a larger mean length than Patagonian toothfish. There is not evidence of ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... toothfish, accumulated catch across years yielded 1,353 tons with the majority of the catch coming from ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ...
Meeting Document : WG-SAM-12/33 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom) and J. Arata (Chile)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
caught at deeper waters and have a larger mean length than Patagonian toothfish. There is not evidence of ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... toothfish, accumulated catch across years yielded 1,353 tons with the majority of the catch coming from ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ...
Meeting Document : WG-FSA-12/38 : Auteur(s): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)
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Informing the Working Group on Fish Stock Assessment about the revisions of the WSMPA proposal
proposal, which would fall under the remit of, or might be of interest to participants at FSA 2018 ... Abstract: Following the submission of a first draft Conservation Measure for establishing a MPA ... coast of the Antarctic Peninsula; Adjustment of the habitat of adult Antarctic toothfish in Statistical ... Subareas 48.6 and 48.5 because of further analyses and modelling of the habitat of adult Antarctic ...
Meeting Document : WG-FSA-18/08 Rev. 1 : Auteur(s): S. Hain, K. Teschke, H. Pehlke and T. Brey on behalf of the German Weddell Sea MPA project team
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A quantified Bayesian maximum entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the 2000 CCAMLR survey
Abstract: We present the results of an alternative method of estimating krill abundance, and ... producing maps of krill distribution, from the data collected during the 2000 CCAMLR survey of the Scotia ... unsurveyed off-transect portions of the survey area were found by interpolation, and thus values for total ... inferred. The MaxEnt formalism allows an objective choice of the parameters of the interpolation, and hence ...
Meeting Document : WG-EMM-05/42 : Auteur(s): B.G. Heywood, S.F. Gull and A.S. Brierley (United Kingdom)
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A distribution-free model of length-frequency distribution to inform fishery stratification for integrated assessments
Abstract: Length frequency distributions (LFD) of catch collected as a random sub-sample from ... /or gear specific selectivity. A distribution-free model of LFD is described which is fitted to the ... set of length quantiles L for a predetermined set of corresponding probabilities P (in this instance ... 0.05, 0.1 to 0.9 in 0.1 increments, and 0.95), constructed from individual length measurements of ...
Meeting Document : WG-SAM-13/18 : Auteur(s): S. Candy, P. Ziegler and D. Welsford (Australia)