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Key considerations for planning a large-scale krill survey
management (FBM) approaches for the krill stock in subareas 48.1 to 48.4. These approaches include some which ... needs reliable indicators of krill stock size at appropriate spatial scales. It is likely that future ... FBM approaches will require regular information on krill stock size at relatively fine spatial scales ... ) might also play a role in the future management of the krill fishery. Such surveys provide an indication ...
Meeting Document : WG-EMM-15/27 : Автор(ы): S. Hill, J. Watkins (United Kingdom), O.R. Godø (Norway), S. Kawaguchi (Australia), D. Kinzey, C. Reiss (USA), V. Siegel (Germany), P. Trathan (United Kingdom) and G. Watters (USA)
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Catchability of midwater trawls in relation to krill fishery
, krill aggregations distribution in the study area is discussed. It is shown that while the trawl ... selectivity affects krill length composition in each trawl sample, the trawl catchability affects the ... estimation of total krill lengths distribution, obtained on the basis of trawl samples from different catched ... total distribution of krill length, obtained using weighting of trawl samples (usually 200 ind.) against ...
Meeting Document : WG-EMM-98/20 : Автор(ы): S.M. Kasatkina (Russia)
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Spatial and temporal distribution of krill Euphausia superba biomass in the Ross Sea (1989/90, 1994/95)
- Januar 1990 and November- December 1994), presents how is spatial and temporal distribution of krill ... polynia area) and moved towards North. All the time daytime was prevaled. Krill in aggregations both below ... , many times, on the pieces of ices broke up by icebreaker, individuals of krill were observed, it can be ... supposed that below ice krill occurred mainly in scattered forms very close to surface. Aggregations of ...
Meeting Document : WG-EMM-97/53 : Автор(ы): Kalinowski, J., Azzali, M.
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Analysis of observer coverage for Japanese krill fishing vessels
Abstract: Sources of variability of krill mean length and fish bycatch number was investigated to ... explore proper allocation of scientific observers on Japanese krill fishing vessels using the data from ... had the largest impacts, and year coverage had moderate impacts on CV for both mean krill length and ... fish bycatch. The impacts of subarea and haul coverage were different between krill length and fish ...
Meeting Document : WG-SAM-10/17 : Автор(ы): T. Okuda, M. Kiyota and H. Okamura (Japan)
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Competition-induced starvation drives large-scale population cycles in Antarctic krill
Abstract: Antarctic krill (Euphausia superba)—one of the most abundant animal species on Earth ... . Previous studies have postulated that the krill cycle is induced by periodic climatological factors, but ... models. Here, using data analysis complemented with modelling of krill ontogeny and population dynamics ... , we identify intraspecific competition for food as the main driver of the krill cycle, while external ...
Meeting Document : WG-EMM-18/P05 : Автор(ы): A.B. Ryabov, A.M. de Roos, B. Meyer, S. Kawaguchi and B. Blasius
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Krill fishery information
Abstract: Fisheries targeting krill (Euphausia superba) in the CCAMLR Convention Area during 1998 ... /99 caught 103318 t of krill, and preliminary information indicates that the catch in 1999/00 will ... exceed 82913 t. Krill caught in 1998/99 was taken in Subareas 48.1 (38% of total catch), 48.2 (49%) and ... observer data submitted to the Secretariat are discussed, together with other information on krill obtained ...
Meeting Document : WG-EMM-00/25 : Автор(ы): Secretariat
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On the examining of krill flux
Abstract: In connection with future calculation of volume of krill immigration/emigration (flux ... ) in the choosen polygones, the proves of active long-distance migrations of krill are considered ... results of calculations, is the valuation of krill retention time. To make it more correct and natural it ... is necessary to take into account the biological characteristics of krill, especially for the regions ...
Meeting Document : WG-EMM-95/19 : Автор(ы): Makarov, R.
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Distribution and abundance of krill in the vicinity of Elephant Island in the 1992 austral summer
Abstract: Krill distribution and abundance were estimated from four acoustic surveys, conducted ... surveys covered a 60 by 35 n.mi. area immediately north of Elephant Island. During the first survey, krill ... highest densities of krill were over the shelf extending to the northwest from Elephant Island and ... including the Seal Island archipelago; high densities of krill also extended off the shelf from the ...
Meeting Document : WG-CEMP-92/15 : Автор(ы): R.P. Hewitt and D.A. Demer (USA)
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On the problem of Soviet krill fishery allocation and intensity in the area of Elephant Island in the season of 1988-1989
Abstract: Microscale data, described the Soviet krill fishery off the Elephant Island (Subarea ... the scheme: 1) vessels enter the Elephant Island area and search for krill concentrations; 2) fishing ... has been lost. The velocity of krill concentration northeastward drift, calculated by the fleet ... , preyed on krill. Based on this and taking in account low fishery intensity the conclusion was made that ...
Meeting Document : WG-CEMP-92/30 : Автор(ы): V.A. Sushin and A.S. Myskov (Russian Federation)
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Interannual variability of standardised index of krill abundance in Area 48 according to CCAMLR fishery statistics database
CPUE in Subareas 48.1-48.3 and SSMUs did not correspond to the dynamics of krill density and biomass ... part of krill biomass rather than the total krill biomass in the area. The high variability and ... distributions of CPUE and krill biomass from acoustic surveys, huge confidential intervals of annual CPUE ... estimates evidence that inter-annual variability of standardized abundance index of krill obtained from ...
Meeting Document : WG-EMM-10/17 : Автор(ы): P.S. Gasyukov and S.M. Kasatkina (Russia)
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