Результаты поиска
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Incident of Antarctic krill (Euphausia superba) mass infection near the coasts of South Georgia Island (Subarea 48.3)
Abstract: In the north-eastern part of South Georgia Island shelf (Subarea 48.3) on 30 July 2001 ... for the first time we found out young and mature antarctic krill Euphasia superba individuals affected ... by the disease that had not been described earlier. In the period of winter and spring some males and ... females Euphasia superba of all size groups- from 27 to 52 cm- were affected. From winter to spring the ...
Meeting Document : WG-EMM-02/13 : Автор(ы): M.S. Savich (Ukraine)
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Preliminary estimation of ray by-catch in the longline fishery in Subarea 48.3
Abstract: The total capture of rays in the Subarea 48.3 longline fishery is composed both of rays ... brought on board and a number that are knocked off the line or fall off before they reach the deck. We ... information collected by observers on the rays appearing during their tally period. This estimate is entirely ... independent of vessel records of landed and discarded rays. For the one vessel that we have good species ...
Meeting Document : WG-FSA-02/55 : Автор(ы): D.J. Agnew, J. Pearce and M. Endicott (United Kingdom)
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Depletion experiment of Dissostichus eleginoides stock in the south of South Georgia Island (Antarctica)
Abstract: Ten hauling for Dissostichus eleginoides were performed from the 11lth to the 21 of ... , whose center was at 55° 03’ S 36° 53’ W. Leslie Method was applied to the data. initial biomass was ... these data, another analisis based in the density (Kg/nm2) on the fished area was used. The positions ... given by the vessel were confirmed with information obtained from an automatic position system (ARGOS ...
Meeting Document : WG-FSA-94/31 : Автор(ы): P. Rubilar, C.A. Moreno (Chile) and J. Ashford (United Kingdom)
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The preparation of recommendations and standard procedures for krill acoustic surveys
Abstract: Acoustic surveys are the most powerful tool of krill abundance estimation and ... distribution mapping. The International Community needs to prepare standard requirements and procedures for ... and analysis. In the paper possibilities and approaches to preparation of recommendations for acoustic ... surveys of different scales (macro, meso, micro) are reviewed. It’s concluded that the most items of the ...
Meeting Document : WG-KRILL-93/5 Rev. 1 : Автор(ы): W.D. Tesler (Russia)
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Factors affecting the growth rate and mass at weaning of Antarctic fur seal pups at Bird Island, South Georgia
Abstract: We studied the influence of sex of pup, maternal age, birth date of pup, number of ... foraging trips, and the mean duration of both foraging trips at sea and nursing visits ashore on the growth ... and mass at weaning of pups of Antarctic fur seals (Arctocephalus gazella) during the austral summers ... the pups influenced the nature and magnitude of sex differences in estimated growth rates. Growth ...
Meeting Document : WG-CEMP-93/09 : Автор(ы): N.J. Lunn, I.L. Boyd, T. Barton and J.P. Croxall (United Kingdom)
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Evaluating the impact of multi-year research catch limits on overfished toothfish populations
Abstract: In stocks that have been depleted by overfishing, the benefits of additional fisheries ... removals for research purposes need to be evaluated against the risks that such catches may contribute to ... delaying the recovery of such stocks. Through simulating a Dissostichus eleginoides stock that has been ... decades to recover even in the absence of fishing, and apparently low levels of research catches can ...
Meeting Document : WG-FSA-10/42 Rev. 1 : Автор(ы): D.C. Welsford (Australia)
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Analysis of seamount-specific catch and tagging data in the Amundsen Sea, SSRU 88.2H
areas. These metrics were also calculated for SSRU 88.2H as a whole. The analyses indicate that: Fish ... seldom move among seamounts within the complex, and residence time on particular seamounts is typically 1 ... -2 years before fish depart from these seamounts, presumably back to the slope SSRUs. Therefore, it ... is recommended that the stock assessment include only recaptures of tagged fish that have been at ...
Meeting Document : WG-SAM-14/27 : Автор(ы): S.J. Parker (New Zealand)
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Chronology of previously submitted scientific documents, and updated maps and analyses supporting MPA planning in the Ross Sea region
Abstract: A proposal for a Marine Protected Area in the Ross Sea region has been submitted to ... CCAMLR and iteratively updated since 2012 consistent with Scientific Committee advice. The purpose of ... this paper is to: 1) identify previously submitted scientific documents supporting MPA planning in the ... scientific papers to reflect the boundaries of the current MPA proposal and with updated fishery data, to ...
Meeting Document : SC-CAMLR-XXXIII/BG/23 Rev. 1 : Автор(ы): Delegations of New Zealand and the USA
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Progress report on collaborative research for otolith chemistry of Antarctic toothfish Dissostichus mawsoni in the Southern Ocean
Abstract: Otolith chemical analysis is one of important and useful approaches to reveal the stock ... structure and connectivity of Dissostichus mawsoni in the Southern Ocean. Recalling the suggestion from WG ... -FSA 2018 about the international collaboration on otolith microchemistry of D. mawsoi, this progress ... report summarized the update of this work. The result indicated that the heterogeneity in stock structure ...
Meeting Document : WG-FSA-2019/61 : Автор(ы): G.P. Zhu
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NEW REGIONAL-SCALE SURVEYS OF THE ADÉLIE PENGUIN BREEDING POPULATION IN PRYDZ BAY: A STEP TOWARDS IMPROVED ESTIMATION OF KRILL CONSUMPTION IN EAST ANTARCTICA
ecosystem models that might be used to inform the management of impacts due to climate change or fisheries ... priority region for new survey work to improve population estimates. Prydz Bay is considered to have the ... largest breeding population of Adélie penguins in east Antarctica but the most recent abundance survey was ... critical to understand if population numbers in Prydz Bay have changed in the past three decades ...
Meeting Document : WG-EMM-11/32 : Автор(ы): C. Southwell, J. McKinlay, K. Newbery, L. Emmerson and J. Lieser (Australia)
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