Resultados de la búsqueda
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A statistical method for analysing the extent of IUU fishing in CCAMLR waters: application to Subarea 48.3
Abstract: 1. This paper describes a new method for estimating IUU catch of fish and birds. It ... account of both “seen” and “unseen” IUU fishing through a simulation model to arrive statistically ... rigorous estimates and confidence intervals of fish and bird catch by IUU vessels. This method has not been ... extension to other regions of the Antarctic. 2. Of the sources of information on IUU fishing, Fishery ...
Meeting Document : WG-FSA-02/4 : Autor(es): D.J. Agnew and G.P. Kirkwood (United Kingdom)
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The migration patterns of Electrona carlsbergi (Tåning, 1932)
Abstract: On the basis of analyses and review of published data on the biology and distribution ... of Electrona carlsbergi, as well as on the hydrological patterns of the Southern Ocean- especially ... concerning the structure and spatial variation of the Antarctic Circumpolar Current (ACC)- this paper ... various frontal zones. The yearly transport of E. carlsbergi into the waters of the Southern Polar Frontal ...
Meeting Document : WG-FSA-93/18 : Autor(es): A.N. Kozlov (Russia)
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Assessment of krill biomass in fishing grounds using the data on fishing intensity and hydroacoustic method
Abstract: The paper contains a description of the statistical method used for assessment of the ... beginning of the fishery. Application of the statistical method for assessment of the initial krill biomass ... may be realistic provided that the conditions exist, which permit to determine the catchability of the ... midwater trawl. Two methods were used for this purpose: modelil1ing the probabilistic-statistical theory of ...
Meeting Document : SC-CAMLR-VIII/BG/10 : Autor(es): USSR
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METHODOLOGY OF EVALUATING THE AQUATIC LIFE RESOURCES
Abstract: ic life is developed in accordance with the rules of metrology, mathematical statistics ... and using the biocenological regularities of water objects. The basis of evaluating the stocks of ... water life was investigated through biocenotic conditionality in the areas of their equal probability in ... concentrations. The traditional method of squares in evaluating the stocks of water life was modernized with the ...
Meeting Document : WG-SAM-08/P02 : Autor(es): L.A. Kovalchuk (Ukraine)
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RESOURCES EVALUATION OF ANTARCTIC KRILL EUPHAUSIA SUPERBA DANA USING AREAL TRAWLING AND HYDRO-ACOUSTIC DATA
observations using trawling and hydroacoustic data is proposed. Reliable evaluation of krill resources is ... provided with probability methods and spatial analyses requiring knowledge of statistical distribution ... rules applicable for natural habitat and equal probability concentrations. Spatial analyses of krill ... population densities have shown mixed rules of statistical distribution over its natural habitat. Data ...
Meeting Document : WG-SAM-08/P01 : Autor(es): L.A. Kovalchuk (Ukraine)
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Mackerel icefish biomass and distribution on the results of acoustic survey carried out in February–March 2002
Abstract: Results of the acoustic survey of icefish carried out by Russian vessel STM-8390 ... Atlantida in February-March 2002 in Subarea 48.3 are presented. Biomass and distribution of icefish were ... estimates of icefish were made by comparison an observed TS in situ histograms with the size composition of ... the ensonified fish, obtained by trawling. Results of acoustic estimates of icefish biomass and ...
Meeting Document : WG-FSA-02/44 : Autor(es): S.M. Kasatkina, V.Yu. Sunkovich, A.P. Malyshko and Zh.A. Frolkina
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An index of per capita recruitment
Abstract: An index of per capita recruitment (PCR) is proposed such that Ri PCRy–1 = R1y/(1–R1y ... )eM where R1 is the proportion of age-1 animals sampled in year y and M is the post-recruit mortality ... rate. The intent of the index is to facilitate investigation of reproductive success and the factors ... postulated to affect it. The formulation of PCR is based on the assumptions that: 1) post-recruit mortality ...
Meeting Document : WG-EMM-99/50 : Autor(es): R. Hewitt (USA)
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Seabird mortality on longlines in Australian waters: a case study of progress and policy
Abstract: Seabird bycatch arising from longline fishing is known to kill tens of thousands of ... , particularly albatrosses, causing widespread declines in populations across the world. However the extent of ... seabird mortality is poorly known for most of the world's longline fisheries. Information on bird ... evolution of the seabird bycatch issue in the Australian Fishing Zone (AFZ), where the magnitude of the ...
Meeting Document : WG-FSA-98/29 : Autor(es): R. Gales, N. Brothers, T. Reid, D. Pemberton and G.B. Baker (Australia)
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About the fecundity of Patagonian toothfish (Dissostichus eleginoides) in Subarea 48.3 (around South Georgia)
Abstract: The absolute and relative fecundity of Patagonian toothfish inhabiting areas of South ... Georgia Island and Shag Rocks were studied. The absolute individual fecundity of toothfish in relation to ... the size of specimens ranged from 56,3 to 567.5 thousands of eggs, averaging 152,9 thousands of eggs ... . Values of relative individual fecundity of toothfish varied from 4,1 to 13,0 thousands of eggs (averaging ...
Meeting Document : WG-FSA-98/13 : Autor(es): M.M. Nevinsky and A.N. Kozlov (Russia)
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Developing research on Antarctic krill to facilitate the development and updating of feedback management procedures
Abstract: Antarctic krill fisheries have the potential to be in the top 10 fisheries of the world ... in terms of biomass production. The expansion of the fishery from current levels appears inevitable ... developing a feedback management procedure for these fisheries. Implementation of such a feedback management ... approach requires an appropriate level of understanding of (i) the structure, function and change of the ...
Meeting Document : WG-EMM-13/12 : Autor(es): E.J. Murphy, R.D. Cavanagh (United Kingdom), A. Constable (Australia), E.H. Hofmann (USA), S.L. Hill, N.M. Johnston, P.N. Trathan and J.L. Watkins (United Kingdom)