Résultats de la recherche
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Relationships of Antarctic krill (Euphausia superba Dana) variability with westerlies fluctuations and ozone depletion in the Antarctic Peninsula area
Abstract: The assessment of environmental processes controlling variability of Antarctic krill ... variability of krill recruitment and stock density with hypothesised environmental factors. We demonstrated ... meaning strong westerly winds coincided with good levels of krill recruitment in 1981182 (austral summer ... season), 1987/88 and 1990/91, while the years of extremely low values meaning weak westerly winds ...
Meeting Document : WS-AREA 48-98/5 : Auteur(s): M. Naganobu, K. Kutsuwada, Y. Sasai and S. Taguchi (Japan)
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Histopathology of Antarctic krill, Euphausia superba, bearing black spots
Abstract: Small black spots have been noticed on the cephalothorax of Antarctic krill, Euphausia ... superba, since January, 2001. To study the nature of the black spots, the krill were sampled in the winter ... of 2003, 2006, and 2007 in the South Georgia region, the Antarctic Ocean. Histological observations ... revealed that the black spots were melanized nodules that were composed of hemocytes surrounding either ...
Meeting Document : WG-EMM-08/P09 : Auteur(s): S. Miwa, T. Kamaishi, T. Matsuyama, T. Hayashi and M. Naganobu
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Detailed distribution of krill fishing around South Georgia
Abstract: The distribution of kri!! harvesting effort and associated catch rates has previously ... only been available to the scientific community in the form of sub-area or fine-scale(0.5 ° latitude by ... 1 ° longitude) recorded statistics. Earlier analyses of these data have shown this was a shelf-break ... fishery over much of the Scotia Sea. Although these statistics give a general idea of where the fishery ...
Meeting Document : WG-EMM-96/64 : Auteur(s): Parkes, G., Everson, I., Trathan, P.N., Murphy, E.J.
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Target strength estimation of Antarctic krill, Euphausia superba by cooperative experiments with commercial trawlers
Abstract: An estimate of target strength of Antarctic krill, Euphausia superba was obtained by a ... series of cooperative experiments between research vessel and commercial krill trawler. Estimated target ... strength per 1g wet weight of Antarctic krill was-66.ldB a t the frequency of 200kHz. Average size of krill ... was 47.48mm and 0.873g. Author(s): Delegation of Japan Title: Target strength estimation of ...
Meeting Document : SC-CAMLR-VIII/BG/30 : Auteur(s): Delegation of Japan
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Comparison of catches for toothfish in 58.4.1, 58.4.2, and 48.6 from vessels with anomalous CPUE
Abstract: An accurate history of catch is an important input into the assessment of toothfish ... stocks, and uncertainty or bias in the amount of catch from an area must be taken into account in the ... assessment of a stock. In 2013, Korea held a workshop on the anomalous CPUE data reported from some Korean ... vessels in data-poor exploratory fisheries (Delegation of Korea 2013). That paper requested that the data ...
Meeting Document : WG-FSA-13/57 Rev. 1 : Auteur(s): A. Dunn, B.R. Sharp (New Zealand), C. Darby (United Kingdom) and O.R. Godø (Norway)
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A sentiment analysis of online content containing Antarctic krill fishing search terms
Abstract: The sentiment of online content containing Antarctic krill fishing and related search ... terms 12 was analysed to evaluate public perception of the fishery, as a consideration in management 13 ... decisions. The Antarctic krill fishery is managed by the Commission for the Conservation of 14 Antarctic ... combination of recent increases in catches and perceived 16 negative environmental impacts of fishing for ...
Meeting Document : WG-EMM-17/18 : Auteur(s): J. Barrett, K. Reid and J. Jabour
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Revised continuation proposal of a multi-Member longline survey on Patagonian toothfish (Dissostichus eleginoides) in Division 58.4.4b in 2018/19 by Japan and France
Abstract: Japan and France revised a plan to continue to investigate the populations of ... Japan so that selectivity and catch rates can be standardized across the vessels and impacts of ... depredation be minimized. Additional outcomes of the research relate to documenting the degree of depredation ... distribution, relative abundance, and life history of bycatch species. The plan represents a continuation of ...
Meeting Document : WG-FSA-18/44 : Auteur(s): Delegations of Japan and France
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Summary fact sheets for bioregionalisation of the Southern Ocean – examples from the Indian Ocean sector (Area 58)
Abstract: Factsheets outlining the physical and biological attributes of selected sectors of the ... CCAMLR convention area are presented. An overview of CCAMLR Area 58 (Indian Ocean Sector) illustrates ... bathymetry and major oceanographic features (fronts and sea ice extent) and describes the findings of the ... provide details of bathymetry, physical oceanography, cryosphere, geomorphology and benthic & pelagic ...
Meeting Document : WS-BSO-07/9 : Auteur(s): K. Martin-Smith, P. O’Brien, B. Raymond and A. Constable (Australia)
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Notification of Vulnerable Marine Ecosystems in Statistical Area 58.4.1
Abstract: Conservation Measure 22-06 was adopted to ensure that significant adverse impacts of ... requirements of CM 22-06 a method is proposed to notify CCAMLR of the presence of VMEs and their location using ... this form from Statistical Area 58.4.1, SSRU H. The use of 5 nm buffer zones around the location of the ... observations is proposed to mitigate the risk of spatial uncertainty in the notified position and the ...
Meeting Document : WG-EMM-08/38 : Auteur(s): Submitted by Australia
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Shifts in the demersal fish community of South Georgia
Abstract: The heavily exploited fish stocks of South Georgia have been declining since the early ... 1970's. Use of a non-parametric method revealed a significant change in this community from the ... 1986/87 survey to the 1987/88 survey. This change was the result of reductions in the abundance of ... Champsocephalus gunnari and Notothenia squamifrons, and the increased presence of Pseudochaenichthys georgianus ...
Meeting Document : SC-CAMLR-VII/BG/24 : Auteur(s): United States of America