Search results
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Distribution and abundance of Antarctic krill in the vicinity of Elephant Island during the 1994 austral summer
Abstract: The distribution and abundance of Antarctic krill (Euphausia superba) were estimated ... n.mile2 immediately north of Elephant Island. During the first survey, the highest densities of krill were ... X 106 t. Five weeks later highest densities of krill were mapped north of Elephant Island and biomass ... of krill were mapped in the shoal waters to the north of Elephant Island; biomasses were estimated to be 87 ...
Meeting Document : WG-Joint-94/09 : Author(s): R.P. Hewitt and D.A. Demer (USA)
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Variability of krill fishery operations in Subarea 48.2 in relation to fishing methods: spatial–temporal distribution of CPUE and of fishing efforts
Abstract: The author continue to analyze krill fishery data for understanding fishery operations ... - temporal variability of krill fishery based on CPUE trends, trawling duration, catch per haul, fishing ... . The author suggest that understanding fishery strategy and performance requires knowledge of krill ... distribution in the fishing grounds with special attention to krill aggregation patterns as the factors ...
Meeting Document : WG-EMM-14/22 : Author(s): S. Kasatkina (Russia)
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Distribution and size of Antarctic krill (Euphausia superba Dana) in the Polish commercial catches in the Atlantic sector of Antarctica in 1997–1999
Abstract: The distribution, density and length composition of krill in commercial concentrations ... be assumed that there are other factors besides illumination which have an impact on the degree of krill ... to 31,370 specimens * m-3. At night, the krill concentrations were scattered throughout the water, however ... . The size structure of the krill was diverse during all periods and in all areas, however, a decrease ...
Meeting Document : WG-EMM-01/13 : Author(s): E. Jackowski (Poland)
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THE ASAM 2010 ASSESSMENT OF KRILL BIOMASS FOR AREA 48 FROM THE SCOTIA SEA CCAMLR 2000 SYNOPTIC SURVEY
to 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 Scotia Sea in 2000 ... and include additional information of krill density by strata and transect published for the original ...
Meeting Document : WG-EMM-11/20 : Author(s): 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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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 ... as a 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 : Author(s): A.S. Brierley, J.L. Watkins, C. Goss, M.T. Wilkinson and I. Everson (UK)
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Proposals for study of spatial-temporal dynamics of krill distribution for management applications
for providing sufficient information with the aim of quantitative understanding regularities and trends of krill ... for krill stock in the Area 48. Proposals concerning scientific activity needed for resolving issues ... are shown. Practical implementation of these proposals will contribute to attaining CCAMLR goals in krill ... dynamics of krill distribution for management applications Approval: Approved ...
Meeting Document : SC-CAMLR-XXX/BG/09 : Author(s): Delegation of Russia
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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 ... box (total transect length = 459 nautical miles, area = 11,313 n mile2). Krill were collected ... . The length-weight relationship of krill sampled during the survey was w = 0.0035*(L)3.2108 where ... for integrated backscattering area to areal krill biomass density at 120 kHz was 0.1556. The mean density ...
Meeting Document : WG-EMM-00/52 : Author(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
Abstract: The research performed was aimed at assessment of fishing fleet impact upon krill ... . In the above period total krill catch amounted to 88.9 thous. t which constitutes the upper limit of seasonal ... as the months of the highest fleet pressure for entire period from 1984 to 1993. Krill fishery was concentrated ... in each month critical to dependent species exceeded no 1 0% of initial krill stock at beginning of each ...
Meeting Document : WG-EMM-97/51 : Author(s): Ivanova, V.I., Sushin, V.A., Kasatkina, S.M.
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Classification of Southern Ocean krill and icefish echoes using Random Forests
. Antarctic krill, Euphausia superba, are typically identified through a combination of expert scrutiny ... at two or more echosounder frequencies. For commonly used frequencies, however, the differences for krill ... aggregations, which can be difficult to distinguish acoustically from large krill layers. Mackerel icefish ... . The final random forest classified krill, icefish, and mixed aggregations of weak scattering fish species ...
Meeting Document : WG-EMM-16/23 : Author(s): N. Fallon, S. Fielding and P. Fernandes
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Developing conceptual models of elements of the Antarctic marine ecosystem: Antarctic krill (Euphausia superba)
Abstract: A simple generalised conceptual life history model for Antarctic krill is developed ... relationships between Antarctic krill and its biotic and abiotic environment. Krill life history is thus viewed ... ) Title: Developing conceptual models of elements of the Antarctic marine ecosystem: Antarctic krill ... A simple generalised conceptual life history model for Antarctic krill is developed based ...
Meeting Document : WG-EMM-04/50 : Author(s): S. Nicol and S. Kawaguchi (Australia)