Search results
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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 : Author(s): 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 : Author(s): 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 : Author(s): 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 : Author(s): R. Hewitt (USA)
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Lipid metabolism features of Antarctic toothfish Dissostichus mawsoni (Nototheniidae)
Abstract: Lipid metabolism and indices of oxidation processes obtained during examination of ... specimens of Antarctic toothfish Dissostichus mawsoni (Perciformes: Nototheniidae) caught in the Ross Sea ... are given. Blood plasma, tissues mesonephric kidney, liver and spleen were studied for the content of ... total lipids and lipid composition, products of lipid peroxidation and level of antioxidant protection ...
Meeting Document : WG-FSA-16/P02 : Author(s): I.I. Gordeev, D.V. Mikryakov, N.I. Silkina and A.S. Sokolova
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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 : Author(s): R. Gales, N. Brothers, T. Reid, D. Pemberton and G.B. Baker (Australia)
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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 : Author(s): 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)
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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 : Author(s): M.M. Nevinsky and A.N. Kozlov (Russia)
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Proposal for a SCOR Working Group to identify Ecosystem Essential Ocean Variables for measuring change in the biological properties of marine ecosystems
for measuring change in the biological properties of marine ecosystems” was developed by members of ... amongst members of the Science Steering Committee of the IMBER program, Integrating Climate and Ecosystem ... Dynamics (ICED) as part of the development of the ICED Southern Ocean Sentinel. The aim of the Working ... Group is to develop a set of essential variables for monitoring that would contribute to assessments of ...
Meeting Document : WG-EMM-12/45 : Author(s): A. Constable (Australia)
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Report on incidental bird mortality and effectiveness of mitigation measures during demersal long lining by Ihn Sung 66 in Subarea 48.3 - December 1993 to February 1994
Abstract: A method of surveying incidental mortality of seabirds during longlining operations and ... the effectiveness of mitigation measures is described. An alternative design of streamer line for use ... with the 'Spanish' method of longlining (separate hauling and fishing lines) is described ... . The results of observations of incidental mortality of seabirds made during the fishing operations of ...
Meeting Document : WG-IMALF-94/14 : Author(s): C. Jones and G. Parkes (United Kingdom)