Résultats de la recherche
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Modelling the predator–prey interactions of krill, baleen whales and seals in the Antarctic ecosystem
Abstract: The history of human harvests of seals, whales, fish and krill in the Antarctic is ... sensitivities are fit to available data on predator abundances and trends, and the plausibility of the results ... summarized briefly, and the central role played by krill emphasized. The background to the hypothesis of a ... krill surplus in the mid 20th Century is described, and the information on population and trend levels ...
Meeting Document : WG-EMM-05/34 : Auteur(s): M. Mori and D.S. Butterworth (South Africa)
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The Norwegian SWARM project: from swarming behaviour to trophic interactions: modelling dynamics of Antarctic krill in ecosystem hotspots using behaviour-based models
Orkneys by deploying acoustic moorings in a commercially exploited area. Data gathered from the moorings ... ocean physics and behaviour in driving krill biomass variation in the area. Author(s): T.A. Klevjer, G ... behaviour to trophic interactions: modelling dynamics of Antarctic krill in ecosystem hotspots using ...
Meeting Document : WG-EMM-17/26 : Auteur(s): T.A. Klevjer, G. Rieucau, A.H.H. Renner, G. Skaret and O.R. Godø
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A RE-APPRAISAL OF THE TOTAL BIOMASS AND ANNUAL PRODUCTION OF ANTARCTIC KRILL
krill fishery, our net-based data help to set a conservative estimate of total krill biomass. Author(s ... production are still very uncertain. Recently, circumpolar krill databases, combined with growth models and ... standardised net sampling methodology but they integrate over the period 1926-2004, during which krill ... abundance has fluctuated. To estimate krill biomass at the end of last century we combined the KRILLBASE map ...
Meeting Document : WG-EMM-08/17 : Auteur(s): A. Atkinson (United Kingdom), V. Siegel (Germany), E.A. Pakhomov (South Africa), M.J. Jessopp (United Kingdom) and V. Loeb (USA)
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Consumption of krill by minke whales in Areas IV and V of the Antarctic
Whale Research Program Under Special Permit in the Antarctic) data. Estimates of the daily food ... Abstract: The consumption of Antarctic krill (Euphausia superba) by the southern minke whale ... IV were equivalent to roughly one- fourth of a total estimate biomass of krill in Area IV ... : Consumption of krill by minke whales in Areas IV and V of the Antarctic Approval: Approved ...
Meeting Document : WG-EMM-97/17 : Auteur(s): Fujise, Y., Tamura, T., Ichii, T.
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Net diagrams for Russian vessel notified for krill fishery in 2015/16
Abstract: According to the requirements of the Conservation Measure 21-03 (2014), this document ... krill fishery in 2015/16 Microsoft Word File: emm-15-29.doc Approval: Approved Secretariat Workflow ...
Meeting Document : WG-EMM-15/29 : Auteur(s): Delegation of the Russian Federation
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Hydrography and acoustic biomass estimates of Antarctic krill (Euphausia superba) near the South Shetland Islands, Antarctica, during January 2000: preliminary results
the R/V Onnuri from 9 to 19 January 2000. The acoustic data were obtained using a Simrad EK500 ... Abstract: To estimate the abundance and distribution of Antarctic krill (Euphausia superba) in ... ) mesoscale box (total transect length = 459 nautical miles, area = 11,313 n mile2). Krill were collected with ... George Island. The length-weight relationship of krill sampled during the survey was w = 0.0035*(L)3.2108 ...
Meeting Document : WG-EMM-00/52 : Auteur(s): D. Kang, Y. Lee, H.-C. Shin, W. Lee and S. Kim (Republic of Korea)
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Assessment of fishing intensity of krill in Subarea 48.2 during the season of 1989/90
(data of 2900 trawlings are used) in the South Orkneys area during December 1989- March 1990. In the ... Abstract: The research performed was aimed at assessment of fishing fleet impact upon krill ... above period total krill catch amounted to 88.9 thous. t which constitutes the upper limit of seasonal ... months of the highest fleet pressure for entire period from 1984 to 1993. Krill fishery was concentrated ...
Meeting Document : WG-EMM-97/51 : Auteur(s): Ivanova, V.I., Sushin, V.A., Kasatkina, S.M.
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A spatial multi-species operating model of the Antarctic Peninsula krill fishery and its impacts on land-breeding
main ways: 1) Accounting for seasonality; 2) Explicitly modelling fish and whales in addition to ... envelopes could be narrowed given improved data on key parameters such as survival. Results are useful for ... Abstract: An updated version of the Spatial Multi-species Operating Model (SMOM) of krill ... advice regarding the subdivision of the precautionary catch limit for krill among 15 small-scale ...
Meeting Document : WG-SAM-07/12 : Auteur(s): É.E. Plagányi and D.S. Butterworth (South Africa)
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Biotopic and spatial distribution of krill Euphausia superba Dana (Crustacea, Euphausiacea) length groupings in the Atlantic sector of Antarctic in summer 1984 and 1988
the basis of the data of two complex surveys carried out in the western Atlantic sector of Antarctic ... Abstract: Three basic length groupings of krill were identified with the clustering analysis on ... complied with the climatic norm and seemed to stipulate the typical pattern of krill spatial distribution ... analysis of the survey results in 1984, 1988 and CCMLR-2000 showed that krill population structure in the ...
Meeting Document : WG-EMM-04/27 : Auteur(s): V.V. Lidvanov, A.V. Zimin, K.E. Shulgovsky (Russia)
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Further progress on modelling the krill–predator dynamics of the Antarctic ecosystem
fitting the model to abundance and trend data is reported. The model is extended to include an “other ... predators” variable (reflecting squid, fish and seabirds) so that the crabeater seal variable does not have ... model during that meeting are addressed in turn. Results are quoted that suggest that krill is indeed ... estimates for the various krill predators is seen as a priority for improving the reliability of current ...
Meeting Document : WG-EMM-06/19 : Auteur(s): M. Mori (Japan) and D.S. Butterworth (South Africa)