Search results
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Choice of a procedure for deciding closure of CCAMLR fisheries: a simulation model
Abstract: The methods used for deciding the closure date for fisheries monitored by the Secretariat of CCAMLR, as described in Conservation Measures, have been difficult to implement because of the variation in catch rates shown by the fisheries. Non-fluctuating random and fluctuating random catch
Meeting Document : CCAMLR-X/BG/09 : Author(s): Secretariat
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Conservation measures - current status
Author(s): Secretariat Title: Conservation measures- current status Approval: Approved
Meeting Document : CCAMLR-X/BG/10 : Author(s): Secretariat
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Definition of the problem of estimating fish abundance over an area from acoustic line transect measurements of density
Abstract: The problem of acoustic abundance estimation is briefly reviewed. Under proper conditions, fish density can be measured with high accuracy along line transects. Observed variations in fish density consequently reflect biological variations, or inhomogeneity in spatial distribution. The
Meeting Document : WG-KRILL-91/08 : Author(s): K.G. Foote and G. Stefánsson (Norway)
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Fine-scale catches of krill reported to CCAMLR 1988 1990
Author(s): Secretariat Title: Fine-scale catches of krill reported to CCAMLR 1988 1990 Approval: Approved
Meeting Document : WG-KRILL-91/09 : Author(s): Secretariat
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On construction of multidisciplinary and stock assessment surveys as well as on collection of material on Euphausia superba and environmental conditions in the fishing areas and adjacent waters
Author(s): R.R. Makarov and V.V. Maslennikov (USSR) Title: On construction of multidisciplinary and stock assessment surveys as well as on collection of material on Euphausia superba and environmental conditions in the fishing areas and adjacent waters Approval: Approved
Meeting Document : WG-KRILL-91/10 : Author(s): R.R. Makarov and V.V. Maslennikov (USSR)
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Peculiarities of Euphausia superba size composition in Statistical Subarea 48.2 (South Orkney Islands)
Abstract: Clarification of main tendencies of spatial changeability of size composition of E.superba was undertaken by means of comparision of various size groups of curstacean distribution in the region of the South Orkney islands and adjacent waters. Materials of 14 separte expeditions were used
Meeting Document : WG-KRILL-91/11 : Author(s): V.I. Latogursky and R.R. Makarov (USSR)
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Report of the biologist-observer from the commercial trawler Grigory Kovtun, season 1989/90
Author(s): A.V. Vagin (USSR) Title: Report of the biologist-observer from the commercial trawler Grigory Kovtun, season 1989/90 Approval: Approved
Meeting Document : WG-KRILL-91/12 : Author(s): A.V. Vagin (USSR)
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Target strength of Antarctic krill
Abstract: In-situ measurements of individual krill target strength are presented (modal value =-69db). Net samples obtained immediately before the experiment indicate that the animals were reproductively mature and averaged 47.44mm in length. Results agree well with recent predictions of acoustic
Meeting Document : WG-KRILL-91/13 : Author(s): R.P. Hewitt and D.A. Demer (USA)
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Oceanic condition and zooplankton distribution/ abundance in Bransfield Strait during austral summer 1989/1990
Abstract: To delineate zooplankton distribution and abundance in Bransfield Strait, in relation to hydrographic condition, a total of 29 sampling stations was occupied for the CTD casts and plankton towings in a systematic grid from December 29, 1989 to January 7, 1990. Comparisons of temperature
Meeting Document : WG-KRILL-91/14 : Author(s): S.M. Kim and M.S. Suk (Korea)
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Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic peninsula region
Abstract: A net sampling survey for krill was carried out by RV ‘Meteor’ along the Antarctic Peninsula from 26 December 1989 to 14 January 1990. Results were compared with data of an identical survey with RV ‘Polarstern’ in 1987/88. Seasonal variation between summer and winter abundance/biomass
Meeting Document : WG-KRILL-91/15 : Author(s): Delegation of Germany