Résultats de la recherche
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Detailed distribution of krill fishing around South Georgia
1 ° longitude) recorded statistics. Earlier analyses of these data have shown this was a shelf-break ... the South Georgia area. Analyses of these data show marked interannual variability and indications of ... operated further west on a range of banks associated with submarine canyons. The data for 1993 were only ... relation to the ecology of krill and the fishery interaction with the local predator colonies. Author(s ...
Meeting Document : WG-EMM-96/64 : Auteur(s): Parkes, G., Everson, I., Trathan, P.N., Murphy, E.J.
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Oceanic circumpolar habitats of Antarctic krill
Antarctic krill Approval: Approved Secretariat Workflow Status: Content Approved Document Release Consent ...
Meeting Document : WG-EMM-08/P04 - Article : Auteur(s): A. Atkinson, V. Siegel, E. A. Pakhomov, P. Rothery, V. Loeb, R.M. Ross, L.B. Quetin, K. Schmidt, P. Fretwell, E.J. Murphy, G.A. Tarling and A.H. Fleming
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Characteristics of interannual variation in aggregation and diurnal vertical migration of Antarctic krill at South Georgia during winter
Georgia during winter based on Japanese krill fishery data during the period 1990-2012. High density and ... index and diurnal vertical distribution for Antarctic krill in krill fishing grounds (hotspots) at South ... follows: Median CPUEs did not show particularly low values in winter even when krill abundance and ... predator performance were poor in the previous summer. Krill recruitment index at South Georgia suggested ...
Meeting Document : WG-EMM-18/34 : Auteur(s): T. Ichii, Y. Mori, P.N. Trathan, K. Mahapatra, M. Okazaki, T. Hayashi and T. Okuda
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A multiple-frequency method for identifying and assessing the Antarctic krill stock in the Ross Sea (1989/90, 1997/98 and 1999/2000)
crystallorophias ones and from other scatters. They are based on the experimental data acquired in the expeditions ... Italian expeditions to the Ross Sea to discriminate Euphausia superba (krill) aggregations from Euphausia ... applied to estimate krill biomass in the area of Ross Sea (22000 nm2), investigated from 19 to 26 December ... 1997. It results that krill biomass estimated by the criteria based on multiple frequency method is ...
Meeting Document : WG-EMM-00/37 : Auteur(s): M. Azzali, J. Kalinowski and G. Lanciani (Italy)
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Recommendations on estimating krill escape mortality during fishing operations: the problems and approaches
approaches to elaboration of the efficient method for «escape mortality» study by standardizing data ... Abstract: The task to estimate the escape mortality of krill during the fishing operation ... assigned by Scientific Committee requires assessment of the total krill passed through the rope and netting ... parts of trawl and krill amount appeared unviable in the process of escapement. The recommendations ...
Meeting Document : WG-EMM-10/18 : Auteur(s): V.K. Korotkov and S.M. Kasatkina (Russia)
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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 ... fish bycatch. The impacts of subarea and haul coverage were different between krill length and fish ... bycatch. Fish bycatch required moderate coverage for haul but low improvement were made by increasing ...
Meeting Document : WG-SAM-10/17 : Auteur(s): T. Okuda, M. Kiyota and H. Okamura (Japan)
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Current work towards estimating krill consumption by flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2
flying seabirds to assess the extent and rigour of existing data, and conducting a large-scale abundance ... other species, and searching the literature, or where necessary collecting new data, to estimate ... Abstract: We describe current work to obtain krill consumption estimates for flying seabirds in ... estimating krill consumption by flying seabirds in CCAMLR Divisions 58.4.1 and 58.4.2 Approval: Approved ...
Meeting Document : WG-EMM-16/67 : Auteur(s): L. Emmerson and C. Southwell
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Competition-induced starvation drives large-scale population cycles in Antarctic krill
models. Here, using data analysis complemented with modelling of krill ontogeny and population dynamics ... 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 ... , we identify intraspecific competition for food as the main driver of the krill cycle, while external ...
Meeting Document : WG-EMM-18/P05 : Auteur(s): A.B. Ryabov, A.M. de Roos, B. Meyer, S. Kawaguchi and B. Blasius
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PROPOSAL OF ACOUSTIC SURVEY OF ANTARCTIC KRILL USING FISHING VESSEL
planning an acoustic survey using a commercial krill fishing vessel that enables annual data collection ... . This proposal focuses on monitoring yearly trend of krill distribution and fishing ground formation ... ANTARCTIC KRILL USING FISHING VESSEL Approval: Approved ...
Meeting Document : WG-EMM-11/35 : Auteur(s): K. Abe, M. Kiyota, F. Matsumoto and Y. Takao (Japan)
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Incidental seal entanglements on trawl vessels fishing for krill in CCAMLR Subarea 48.3
well as to collect other biological data. Author(s): J. Hooper, K. Reid and D. Agnew (United Kingdom ... Abstract: Observers on krill vessels fishing around South Georgia in the 2003 fishing season ... recorded fur seal captures by some krill fishing vessels. These captures can be attributed to the absence ... clearly important to have observers on krill vessels monitor the effectiveness of mitigation measures as ...
Meeting Document : WG-EMM-04/31 : Auteur(s): J. Hooper, K. Reid and D. Agnew (United Kingdom)