Résultats de la recherche
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Acoustic estimates of krill abundance at South Georgia, 1981–1998
a primary objective, and estimates derived for the first time here from acoustic data collected as a ... Abstract: Acoustic estimates of abundance of the Antarctic krill, Euphausia superba, at South ... includes some previously published estimates arising from cruises where determination of krill density was ... subsidiary during other studies of the pelagic ecosystem at South Georgia. Krill abundance at the island ...
Meeting Document : WS-AREA 48-98/9 : Auteur(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)
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DEMOGRAPHIC STUDIES OF ANTARCTIC KRILL IN THE SOUTH ORKNEY ISLANDS AREA 2009, FIELDWORK AND PRELIMINARY RESULTS
Abstract: This study documents methods and data collection during commercial Antarctic krill ... preliminary results regarding krill demography from the sampling period in January-March, 2009. Total body ... % adult males and ~64% adult females (overall adult sex ratio: 1:4). The proportion of immature krill was ... increased. This field work was part of the Antarctic Krill and Ecosystem Studies (AKES) and the purpose was ...
Meeting Document : WG-EMM-09/10 : Auteur(s): B.A. Krafft and G. Skaret (Norway)
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Geographical aspects of utilising resources of krill (Euphausia superba)
Abstract: This paper presents data on the distribution of E. superba in the Atlantic sector and ... as in the coastal waters of the Antarctic continent, the formation of krill aggregations is variable ... lies with assessing the variability of krill swarming patterns and the subsequent implementation of ... directed at assessing variability in krill transportation and areas of swarm formation in the open-ocean ...
Meeting Document : WG-EMM-96/05 : Auteur(s): Makarov, R.R.
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Relationships between the distribution of whales and Antarctic krill Euphausia superba at South Georgia
examined by comparing sightings and underway acoustic data collected as part of a multidisciplinary ... Abstract: The distribution of whales and krill in two survey boxes north of South Georgia was ... )) occurred close to the, largest single aggregation of krill. The level of association between baleen whales ... and krill was examined at a number of spatial scales. There was a positive relationship between whale ...
Meeting Document : WG-EMM-99/30 : Auteur(s): K. Reid, A.S. Brierley (United Kingdom) and G.A. Nevitt (USA)
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Inter-annual variability in krill density at South Georgia: 1997–2012
acoustic data using a multi-frequency identification window and converted to krill density using the ... Abstract: Antarctic krill (Euphausia superba) are a key species in Southern Ocean ecosystems ... krill was examined using a 15 year time series of acoustic observations undertaken in the Western Core ... Box (WCB) survey area to the north of South Georgia, Southern Ocean. Krill targets were identified in ...
Meeting Document : WG-EMM-13/14 : Auteur(s): S. Fielding, J.L Watkins, P. Trathan, P. Enderlein, C. Waluda, C. Goss, G. Stowasser, G. Tarling and E. Murphy (United Kingdom)
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Draft: Krill Fishery Report 2016
introduction to the report, an inventory of catch and SISO data up to June 2016, including incidental mortality ... Abstract: This update to the annual krill fishery report contains background of the fishery as an ... of marine mammals and seabirds as well as the CCAMLR approach to management of the krill fishery ... been included as an appendix. Author(s): CCAMLR Secretariat Title: Draft: Krill Fishery Report 2016 ...
Meeting Document : WG-EMM-16/07 : Auteur(s): CCAMLR Secretariat
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Fishing patterns of Japanese krill trawlers
Abstract: Log book data from Japanese Krill Trawlers were used to characterize their fishing ... expressing the status of krill in the fishing ground. Catch per fishing days maybe the reasonable index for ... expressing the status of krill in the fishing ground. Author(s): S. Kawaguchi, T. Kameda and Y. Takeuchi ... (Japan) Title: Fishing patterns of Japanese krill trawlers Approval: Approved ...
Meeting Document : WG-EMM-02/28 Rev. 1 : Auteur(s): S. Kawaguchi, T. Kameda and Y. Takeuchi (Japan)
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Extension to the krill-predator modelling exercise
-related mortality effects from overall survival rate data before they can be taken further. Author(s ... Abstract: The krill-predator modelling calculations of Thomson and Butterworth (1995) are ... krill harvesting is found to be strongly dependent on the estimate of the maximum annual growth rate (R ... ) which the population can achieve. For R=10%, it is estimated that a krill harvesting intensity rate γ of ...
Meeting Document : WG-EMM-96/67 : Auteur(s): Thomson, R.B., Butterworth, D.S.
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Evaluation of krill transport factor results in Subarea 48.2 in summer period of 1996
Abstract: The methods and preliminary data on evaluation of krill transfer factors results in ... Weddell Sea waters. The experiment was carried out in two stages: evaluation of krill transport through ... the polygon boundaries; hydroacoustic evaluation of krill biomass and distribution in the polygon and ... researches of krill transport peculiarities through the polygon depending on water dinamics. Krill transport ...
Meeting Document : WG-EMM-96/37 : Auteur(s): Sushin, V.A., Kasatkina, S.M., Shnar, V.N., Abramov, A.M., Polischuk, M.I.
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A RE-ANALYSIS AND UPDATE OF THE ANTARCTIC KRILL BIOMASS IN THE SOUTH SHETLAND ISLANDS, THROUGH 2011
based data show that 2011 was a year of good recruitment, following two years of low recruitment. Krill ... Abstract: Acoustically based estimates of Antarctic krill (Euphausia superba) biomass, and net ... -based estimates of krill density and recruitment are recalculated for the years 1996 through 2011 ... . The time series of acoustic biomass indicate that krill have varied by more than an order of magnitude ...
Meeting Document : WG-EMM-11/26 : Auteur(s): A. Cossio, C. Reiss and R. Driscoll (USA)