Résultats de la recherche
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ANTARCTIC TOOTHFISH STOCK ASSESSMENT IN DIVISION 58.4.1 ON THE BASIS OF CPUE DATA
Abstract: An attempt to use CPUE data based on data of erussian observers in the assessment of ... Antarctic toothfish stock in division 58.4.1 is made. Unlike some previous results obtained for this ... biomass in the Ross Sea. As a result of implementation of a dynamic production model, current biomass in ... : ANTARCTIC TOOTHFISH STOCK ASSESSMENT IN DIVISION 58.4.1 ON THE BASIS OF CPUE DATA Approval: Approved ...
Meeting Document : WG-SAM-09/12 : Auteur(s): D. Vasilyev, K. Shust, V. Tatarnikov, I. Istomin and A. Petrov (Russia)
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Seabird mortality in the longline fishery for Patagonian toothfish at the Prince Edward Islands: 1996–1997
Prince Edward Islands in October 1996, but unsanctioned fishing commenced some months before this date ... the estimated 3.8 million hooks set by permit-holders in the South African Exclusive Economic Zone ... hooks were found in birds or in bird pellets on Marion Island during 1996-97. Almost all birds killed ... were breeding adults, and there was a significant bias towards males in at least three species. More ...
Meeting Document : WG-FSA-97/51 : Auteur(s): Boix-Hinzen, C., Enticott, J.W., Ryan, P.G., Wanless, R., Purves, M., Nel, D.C.
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Echo integration in low signal to noise regimes: methods of noise estimation and removal
Abstract: The results of acoustic surveys, especially in low signal-to-noise regimes, are ... contribution to the above-threshold-signal cannot later be removed in post processing. The only solution is to ... log unthresholded data and to correct for noise in post processing. Integrated data collected at 120 ... requires that logged data have high resolution in both depth and distance. It can be applied so long as ...
Meeting Document : WG-EMM-97/74 : Auteur(s): Higginbottom, I., Pauly, T.
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An outline of the Antarctic research cruise by the Japanese RV Kaiyo Maru around the South Shetland Islands in 1994/95
Agency was conducted in the southwest of the Scotia Sea, especially in the vicinity of the South Shetland ... oceanographic and ecological survey in relation to the distribution and abundance of the Antarctic krill ... analytical studies are currently in progress. Author(s): Takao, T., Ogishima, T., Naganobu, M., Ichii, T ... South Shetland Islands in 1994/95 Approval: Approved ...
Meeting Document : WG-EMM-95/50 : Auteur(s): Takao, T., Ogishima, T., Naganobu, M., Ichii, T., Kawaguchi, S.
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Towards a new method for age determination in Antarctic krill, and evidence that krill shrink under natural conditions
maintained in conditions of low food availability. Recent studies have also demonstrated that E. superba ... individuals may be shrinking in the field during winter. If krill shrink during the winter, conclusions ... reached by length-frequency analysis may be unreliable. In this study, the correlation between the body ... -length and the crystalline cone number of the compound eye was examined. Samples collected in the late ...
Meeting Document : WG-Krill-94/17 : Auteur(s): W. de la Mare (Australia)
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The state of exploited fish stocks in the Southern Ocean - a review
until the season 1989/90. About two thirds of the catches have been taken in the Atlantic Ocean sector ... (mainly South Georgia) while the remaining one third originated primarily from the Kerguelen waters in the ... most heavily affected by fishing are those of Notothenia rossii in both sectors, Notothenia squamifrons ... in the Indian Ocean sector and of Champsocephalus gunnari in the South Orkney Islands/Antarctic ...
Meeting Document : SC-CAMLR-X/BG/13 : Auteur(s): Delegation of Germany
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Stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea 48.3 for the 1991/91 season, using virtual population analysis
Abstract: An assessment of the Champsocephalus gunnari fishery in sub-area 48.3 using VPA from ... situation to assessments in 1989/90 with a decrease in overall biomass and recruitment over recent years ... catches in the near future on the basis of a target F is questioned Author(s): G. Parkes (United Kingdom ... ) Title: Stock assessment of the mackerel icefish, Champsocephalus gunnari (Lönnberg, 1906) in Subarea ...
Meeting Document : WG-FSA-91/15 : Auteur(s): G. Parkes (United Kingdom)
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Net escapement of Antarctic krill in trawls
Abstract: This document describes the aims and methodology of a three year project (commenced in ... 2012) entitled Net Escapement of Antarctic krill in Trawls (NEAT). The study will include a morphology ... . Results will be used to quantify the theoretic catch efficiency and escape mortality in different net ... selective properties for krill in different trawls. Author(s): B.A. Krafft (Norway), L.A. Krag, B. Herrmann ...
Meeting Document : WG-EMM-12/24 : Auteur(s): B.A. Krafft (Norway), L.A. Krag, B. Herrmann (Denmark), A. Engås, S. Nordrum and S. Iversen (Norway)
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Foraging zones of the two sibling species of giant petrels in the Indian Ocean throughout the annual cycle: implication for their conservation
provided by ARGOS PTT. In order to assess differences in bycatch susceptibility, comparisons were made ... . Overall, in adults, all stages remained close to nesting sites, during and outside the breeding season ... , while juveniles dispersed throughout the southern ocean. In adults, the intersexual differences were ... higher than interspecific ones, with females showing a greater distribution range than males in both ...
Meeting Document : WG-FSA-12/67 : Auteur(s): L. Thiers, K. Delord, C. Barbraud (France), R.A. Phillips (United Kingdom) and H. Weimerskirch (France)
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Modern data on parasitofauna of Dissostichus mawsoni and by-catch species from logline fishing in Antarctica
about this ecological group in Antarctica is very scared. Partial geographical and ecological isolation ... – Lophoura szidati. In this work we conclude the results of preliminary analysis of collected parasites of ... Antarctic fishes that were caught during longline fishing in seasons 2010/11 and 2011/12 in Subareas 88.1 ... Dissostichus mawsoni and by-catch species from logline fishing in Antarctica Approval: Approved ...
Meeting Document : WG-FSA-12/P09 : Auteur(s): I.I. Gordeev and S.G. Sokolov