Resultados de la búsqueda
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The Status of the Champsocephalus gunnari Stock in the South Georgia Area
the relationship between the spawning stock and number of recruits. A conventional VPA and an ad hoc ... . VPA-estimates of recruitment levels are used to investigate the degree of variability and the likely ... statistical distribution of recruitment. Data obtained during the UK/Polish survey around South Georgia in ... March 1989, were included in the study. Results indicate that the current biomass level of the C ...
Meeting Document : WG-FSA-89/8 Rev. 1 : Autor(es): M. Basson, J. Beddington (United Kingdom) and W. Ślósarczyk (Poland)
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Distribution and size-age composition of Antarctic krill in the South Orkney Islands region (CCAMLR Subarea 48.2)
Abstract: This paper describes distribution and size-age composition of Antarctic krill ... /2009 and 2009/2010 seasons. All age cohorts of krill passed spawning during the season 2008/2009, while ... in anomalous cold 2009/2010 season significant proportion of krill of cohort 2+ skipped spawning ... . Individuals of Antarctic krill in age 1+ were absent in catches in both 2008/2009 and 2009/2010 seasons ...
Meeting Document : WG-EMM-10/16 : Autor(es): D.O. Sologub and A.V. Remeslo (Russia)
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Mapping trends in activity of illegal, unreported and unregulated (IUU) fishing in the CAMLR Convention Area
to provide an overview of the potential spatial and temporal distribution of recent IUU activity in ... is concentrated in the Indian Ocean Sector; however, the spatial and temporal pattern of IUU activity ... indicates the presence of IUU activity in Subarea 48.6 and more persistent activity in the Indian Ocean ... Sector on Ob, Lena, Elan and BANZARE banks as well as on the boundary of the Kerguelen and Heard Island ...
Meeting Document : CCAMLR-XXXII/BG/09 Rev. 1 : Autor(es): Secretariat
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Continuation proposal of a multi-Member longline survey on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b in 2018/19 by Japan and France
Abstract: Japan and France propose a plan to continue investigate the populations of Patagonian ... selectivity and catch rates can be standardized across the vessels and impacts of depredation be minimized ... . Additional outcomes of the research relate to documenting the degree of depredation, tagging toothfish for ... abundance, and life history of bycatch species. The plan represents a continuation of previous surveys by ...
Meeting Document : WG-SAM-18/03 : Autor(es): Delegations of Japan and France
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Preparing for the Year of the Skate: proposed information collection and tagging protocol for skates
Abstract: Skates are an important bycatch of the toothfish fishery in the CCAMLR area and have ... been identified as priority taxa for which assessments of status are required (e.g., SC-CCAMLR XXIII ... -SAM paragraph 8.10) a review of data requirements and a “Year of the Skate” for 2008–09 whereby data ... better inform an assessment of Ross Sea skates. We propose options for the appropriate collection of such ...
Meeting Document : WG-FSA-07/39 : Autor(es): S. Mormede, A. Dunn, J. Fenaughty, M. Francis, S. Hanchet, R. O’Driscoll and N. Smith (New Zealand)
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CCAMLR observer manual questionnaires: summary results of preliminary analysis during its introductory period
Abstract: Preliminary analysis of data from the questionnaires of krill fishery behavior in ... CCAMLR observer manual was undertaken. The analysis revealed possible inconsistency in definitions of the ... event codes among different skippers. Some suggestions were made to improve the quality of questionnaire ... format to better understand the nature of the fishery. Author(s): S. Kawaguchi and S. Nicol (Australia ...
Meeting Document : WG-EMM-05/31 : Autor(es): S. Kawaguchi and S. Nicol (Australia)
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Results of the Dissostichus spp. new fisheries projects in the Antarctic region (CCAMLR Statistical Subareas 48.1, 48.2 and 88.3)
part of the New Fisheries Projects developed by Chile, mainly in order to establish presence of ... were used for the operations, with variable quantities of fishhooks (1 440-4 320), No. 9 Mustard Kirby ... ) were used as bait. The results of this research indicated that the Antarctic toothfish (D. mawsoni) was ... registered on the surroundings of Pedro I Island (Latitude 68°49'S), and from the Bellingshausen Sea ...
Meeting Document : SC-CAMLR-XVII/BG/07 Rev. 1 : Autor(es): Delegation of Chile
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Incorporation of science advice from the CCAMLR working groups and Scientific Committee into the krill assessment model for Subarea 48.1
series of papers and presentations to WG-EMM, WG-FSA and WG-SAM from 2011 to 2016. The full text of the ... during that period is included as an Appendix to this document. The purpose of this paper is to summarize ... date along with a description of how the model has incorporated those suggestions, and to obtain advice ... from WG-SAM regarding whether the parameter estimation portion of the current model appears mature ...
Meeting Document : WG-SAM-17/32 : Autor(es): D. Kinzey, G.M. Watters and C.S. Reiss
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On the use of baited remote underwater video to study Antarctic toothfish distribution under the sea-ice: from data collection to processing
spreadtime series of data to study the Antarctic toothfish, it is limited to areas where commercial fishing ... is permitted either by management or vessel operational constraints. The use of Baited Remote ... and Italy, from 2015 to 2018 a series of BRUV samplings have been carried out from the fast ice of ... of predictive variables, including an approach to account for bias in counting the number of ...
Meeting Document : WG-EMM-2019/50 : Autor(es): D. Di Blasi, S. Canese, E. Carlig, L. Ghigliotti, S.J. Parker and M. Vacchi
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IN SITU MEASUREMENTS OF TILT ANGLE DISTRIBUTION AND TARGET STRENGTH IN ANTARCTIC KRILL (EUPHAUSIA SUPERBA)
Abstract: Knowledge of the scattering properties of Antarctic krill (Euphausia superba) is ... crucial for biomass estimates of the species, but in situ investigations regarding this are still very ... scarce. We conducted a field study in the Southern Ocean where one of the objectives was to acquire data ... on orientation angles and target strength of Antarctic krill. The main investigations were done off ...
Meeting Document : WG-EMM-08/29 : Autor(es): G. Skaret, S.A. Iversen, T. Knutsen, R.J. Korneliussen, E. Ona, R. Pedersen, A. Totland, T. Torkelsen (Norway) and X. Zhao (China)