Resultados de la búsqueda
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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 : Autor(es): 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 : Autor(es): A.B. Ryabov, A.M. de Roos, B. Meyer, S. Kawaguchi and B. Blasius
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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 : Autor(es): 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 : Autor(es): 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 : Autor(es): P.S. Gasyukov and S.M. Kasatkina (Russia)
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Method for collecting of data on traumatic death of krill passed through the trawl meshes
Abstract: Fishing for krill Euphasia superba Dana has been conducting using midwater trawls of ... different constructions including beam-trawl for several last decades. Not all krill in harvesting zone of ... krill individuals some part of them could pass through cover of net bag and escape of catch. In contact ... is applicable for rating of krill traumatic damage, received by it during trawling from cover of net ...
Meeting Document : WG-EMM-12/43 : Autor(es): V.V. Akishin, I.G. Istomin, V.A. Tatarnikov, A.F. Petrov and R.O. Lebedev (Russia)
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Considerations about managing the krill fishery at small spatial and temporal scales
managing the krill fishery at small temporal and spatial scales. We highlight that the devil is in the ... coastal areas. Closed coastal areas potentially protect near-shore krill-dependent predators from the ... that krill demand from a range of predators in near-shore coastal habitats may only be met through ... oceanographic flow and krill movement. Krill flux and krill behaviour remains key to increased understanding ...
Meeting Document : WG-EMM-2019/22 : Autor(es): P.N. Trathan, V. Warwick-Evans and E. Young
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A synoptic review of energetic requirements of southern ocean krill predators
requirements of krill predators that may be in the most direct competition with the krill fishery. These krill ... compiled for each species. Estimates' of the amount of krill needed. to sustain individuals and/or ... review of energetic requirements of southern ocean krill predators Approval: Approved ...
Meeting Document : WG-EMM-96/19 : Autor(es): Stansfield, A.M.
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By-catch of juvenile fishes – the Antarctic krill fishery
Abstract: One of the non-solved problems in krill exploitation has been the by-catch of fish ... larvae that use (or co-occurred) the krill swarms as their habitat. The detection of this problem started ... together with the massive antarctic krill exploitation during the 80's. There has been recognized ... several fish species whose larvae develop within the krill swarms, nevertheless, few have been the ...
Meeting Document : WG-FSA-96/18 : Autor(es): Moreno, C.A.
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Scientific requirements for an orderly development of the krill fishery
Abstract: At CCAMLR XXV Australia presented the results of the BROKE-West acoustic krill biomass ... precautionary catch limit for krill in Statistical Division 58.4.2 of 1.49 million tonnes (up from 450 000 ... to outline the scientific requirements related to the orderly development of the krill fishery, and ... krill fishery: (i) Undertake krill stock surveys in areas with no precautionary catch limits in order to ...
Meeting Document : WG-EMM-07/23 : Autor(es): A. Constable, G. Slocum and S. Nicol (Australia)