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Krill (Euphausia superba) distribution contracts southward during rapid regional warming
Euphausia superba (hereafter, ‘krill’) has contracted southward over the past 90 years. Near their northern ... juvenile krill. We found evidence for environmental controls on recruitment, including a reduced density of ... larval krill. However, the total post-larval density has declined less steeply than the density of ... recruits, suggesting that survival rates of older krill have increased. The changing distribution is ...
Meeting Document : WG-EMM-2019/P02 : Автор(ы): A. Atkinson, S.L. Hill, E.A. Pakhomov, V. Siegel, C.S. Reiss, V.J. Loeb, D.K. Steinberg, K. Schmidt, G.A. Tarling, L. Gerrish and S.F. Sailley
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Evaluation of the krill stock in Subarea 48.3, June–August 1995
till 15 August 1995 peculiarities of krill distribution, their characteristics including time stability ... (tolerance), are examined, calculations of biomass and krill commercial concentrations values are given ... . Interannual changes in some indices of krill fishing Resources in this subarea from 1985 till 1995 undergo ... analysis. Author(s): Bibik, V.A. Title: Evaluation of the krill stock in Subarea 48.3, June–August 1995 ...
Meeting Document : WG-EMM-96/70 : Автор(ы): Bibik, V.A.
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THE ASAM 2010 ASSESSMENT OF KRILL BIOMASS FOR AREA 48 FROM THE SCOTIA SEA CCAMLR 2000 SYNOPTIC SURVEY
the CCAMLR 2000 synoptic survey data to generate a quality checked krill biomass for area 48 following ... the acoustic protocol identified in ASAM 2009. The total biomass of krill in the Scotia Sea was ... estimated from acoustic and net data collected during the international multi-ship krill biomass in the ... during the assessment and include additional information of krill density by strata and transect ...
Meeting Document : WG-EMM-11/20 : Автор(ы): S. Fielding and J. Watkins (UK) and ASAM participants: A. Cossio, C. Reiss and G. Watters (USA), L. Calise and G. Skaret (Norway), Y. Takao (Japan), X. Zhao (People’s Republic of China), D. Agnew (UK) and D. Ramm and K. Reid (CCAMLR Secretariat)
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A quantified Bayesian maximum entropy estimate of Antarctic krill abundance across the Scotia Sea and in small-scale management units from the 2000 CCAMLR survey
Abstract: We present the results of an alternative method of estimating krill abundance, and ... producing maps of krill distribution, from the data collected during the 2000 CCAMLR survey of the Scotia ... an objective choice of the most probable reconstruction of krill distribution, given the data. The ... points. We therefore inferred the krill density on a 1 nm × 1 nm grid of pixels. Density values (g m-2 ...
Meeting Document : WG-EMM-05/42 : Автор(ы): B.G. Heywood, S.F. Gull and A.S. Brierley (United Kingdom)
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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
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 ... factor for integrated backscattering area to areal krill biomass density at 120 kHz was 0.1556. The mean ...
Meeting Document : WG-EMM-00/52 : Автор(ы): D. Kang, Y. Lee, H.-C. Shin, W. Lee and S. Kim (Republic of Korea)
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Acoustic estimates of krill abundance at South Georgia, 1981–1998
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 ... and 1994 austral summer seasons were characterised by particularly low abundances of krill. For five ...
Meeting Document : WS-AREA 48-98/9 : Автор(ы): 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 : Автор(ы): B.A. Krafft and G. Skaret (Norway)
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Commercial krill fisheries in the Antarctic 1973–1988
Living Resources (CCAMLR) are used to discern visible trends in catch and effort for the Antarctic krill ... (Euphausia superba) fishery between 1972/73 and 1987/88. With time the annual krill catch rose gradually to a ... fisheries in Statistical Sub-areas 48.1, 48.2 and 48.3 dominate exploitation of krill in the CCAMLR ... fishery with respect to independent estimates of krill abundance and minke whale (Baleonoptera ...
Meeting Document : SC-CAMLR-VIII/BG/11 : Автор(ы): Delegation of South Africa
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Assessment of fishing intensity of krill in Subarea 48.2 during the season of 1989/90
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 ... ) fishing intensity in each month critical to dependent species exceeded no 1 0% of initial krill stock at ...
Meeting Document : WG-EMM-97/51 : Автор(ы): Ivanova, V.I., Sushin, V.A., Kasatkina, S.M.
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Geographical aspects of utilising resources of krill (Euphausia superba)
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 ... environment. The commercial exploitation of krill aggregations in open-ocean areas should occur alongside an ...
Meeting Document : WG-EMM-96/05 : Автор(ы): Makarov, R.R.
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