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Acoustic data analysis and models of krill spatial distribution
Paper Title: Acoustic data analysis and models of krill spatial distribution Abstract ... descriptors of krill spatial aggregation: power spectra for krill biomass fluctuations in space, semivariogram ... (spatial autocorrelation of krill biomass) and the frequency distribution of krill biomass estimate. The ... distribution of krill biomass is bimodal and appears to be the mixture of two log normal distributions. These ... OF KRILL SPATIAL DISTRIBUTION A. Morin, A. Okubo and K. Kawasaki Abstract Acoustic data ... obtained on 4-5 January 1987 aboard the RN ProfesSor Siedlecki were used in three descriptors of krill ... spatial aggregation: power spectra for krill biomass fluctuations in space, semivariogram (spatial ... autocorrelation of krill biomass) and the frequency distribution of krill biomass estimate. The wavenumber ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I (Selected Scientific Papers, SC-CAMLR-SSP/5 – Part I) : 311–329 : Автор(ы): Morin, A., A. Okubo and K. Kawasaki
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Antarctic krill, Euphausia superba Dana, demography studies in the seas of Sodruzhestvo and Cosmonauts (Indian Ocean sector of Antarctica)
of E.superba is assumed in these areas. Author(s): E.A. Pakhomov (Ukraine) Title: Antarctic krill ...
Meeting Document : WG-KRILL-93/45 : Автор(ы): E.A. Pakhomov (Ukraine)
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Significant intra-annual variability in krill distribution and abundance at South Georgia revealed by multiple acoustic surveys during 2000/01
Paper Title: Significant intra-annual variability in krill distribution and abundance at South ... acoustic surveys of Antarctic krill (Euphausia superba) were conducted around South Georgia in the 2000/01 ... South Georgia. Krill density in the western box in the early-season survey was very low (3.5 g m-2) but ... observations from previous years, krill density in the western box in the mid-season survey was less than that ... (2002): 71–82 71 SIGNIFICANT INTRA-ANNUAL VARIABILITY IN KRILL DISTRIBUTION AND ABUNDANCE AT SOUTH ... -andrews.ac.uk Abstract Three separate acoustic surveys of Antarctic krill (Euphausia superba) were conducted ... provided temporally and spatially extensive coverage around South Georgia. Krill density in the western ... - season (to 34.7 g m-2). In a pattern that is consistent with observations from previous years, krill ...
Science Journal Paper : CCAMLR Science, Volume 9 (CCAMLR Science, Volume 9) : 71–82 : Автор(ы): Brierley, A.S., C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst
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Differentiation of independent populations of Antarctic krill
Paper Title: Differentiation of independent populations of Antarctic krill Abstract / Description ... : Several countries have recently shown an interest in commercial krill fishing. An understanding of krill ... population structure is needed to establish sound management of krill fisheries. A short review is undertaken ... of recent studies in genetic and morphophysiological variability of krill and Antarctic water ... INDEPENDENT POPDLATIONS OF ANTARCTIC KRILL D.S.S.R. Abstract Several countries have recently shown an ... interest in commercial krill fishing. An understanding of krill population structure is needed to ... establish sound management 'of krill fisheries. A short review is undertaken of recent studies in genetic ... and morphophysiological variability of krill and Antarctic water circulation. On the basis of the ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 275-281 : Автор(ы): USSR
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Krill distribution in the western Atlantic sector of the Southern Ocean during 1983/84, 1984/85 and 1987/88 based on the results of Soviet mesoscale surveys conducted using an Isaacs-Kidd midwater trawl
Paper Title: Krill distribution in the western Atlantic sector of the Southern Ocean during 1983 ... surveys covering a wide area of krill distribution between the Antarctic Peninsula and South Georgia ... krill biomass distribution (g/1 000 m 3) and its mean values were analysed by subarea (Subareas 48.1 ... general pattern of krill distribution and drift in the western part of the Atlantic sector of the ... CCAMLR Science, Vol. 6 (1999): 59-70 KRILL DISTRIBUTION ... mesoscale surveys covering a wide area of krill distribution between the Antarctic Peninsula and South ... m. Overall krill biomass distribution (g/ l 000 m3) and its mean values were analysed by subarea ... the general pattern of krill distribution and drift in the western part of the Atlantic sector of the ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 59–70 : Автор(ы): Sushin, V.A. and K.E. Shulgovsky
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The use of patent databases to predict trends in the krill fishery
Paper Title: The use of patent databases to predict trends in the krill fishery Abstract ... / Description: The fishery for Antarctic krill (Euphausia superba) caught 210 000 tonnes in 2009/10 with ... vessels from six of CCAMLR’s 25 Members participating in the fishery. Trends in the krill fishery are ... detect trends in the fishery, and of the need to obtain more information from the krill industry so that ... management of the Antarctic krill (Euphausia superba) fishery that the harvesting of this spe- cies will ... (Nicol et al., 2011). CCAMLR aims to manage the krill fishery in line with its precaution- ary and ... ecosystem-based approach to management. The krill fishery is unique because the current level of catch ... Commission on any of the fac- tors that might drive an increase in the fishery for Antarctic krill, so the ...
Science Journal Paper : CCAMLR Science, Volume 18 (CCAMLR Science, Volume 18) : 135–144 : Автор(ы): Foster, J., S. Nicol and S. Kawaguchi
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Effects of recruitment variability and natural mortality on generalised yield model projections and the CCAMLR decision rules for Antarctic krill
projections and the CCAMLR decision rules for Antarctic krill Abstract / Description: The generalised yield ... model (GYM) was used by CCAMLR to establish the precautionary catch limit for the Antarctic krill ... proportional recruitment of krill. In this study, krill sampling data for empirical size frequencies were ... krill around the Antarctic Peninsula (Subarea 48.1) along with increasing rates of natural mortality ... The annual catch of Antarctic krill (Euphausia superba) in the Scotia Sea (FAO Statistical Subareas ... criteria. From the early 1990s until 2009 the catch by the Antarctic krill fishery remained around 120 ... fishing has occurred mainly in Area 48, where about 28% of the Antarctic krill stock is esti- mated to ... occur (Atkinson et al., 2009; Nicol et al., 2012). Krill from the region around the Antarctic ...
Science Journal Paper : CCAMLR Science, Volume 20 (CCAMLR Science, Volume 20) : 81–96 : Автор(ы): Kinzey, D., G. Watters and C.S. Reiss
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A composite recruitment index to describe interannual changes in the population structure of Antarctic krill at South Georgia
structure of Antarctic krill at South Georgia Abstract / Description: A composite recruitment index based ... substantial differences, due in part to bias arising from a large number of krill in just one of the station ... describe the population structure of krill around South Georgia during seven cruises between 1989 and 1998 ... . Before 1994 the number of 1+ krill found around South Georgia was very low (proportion of 1+ krill <7 ... RECRUITMENT INDEX TO DESCRIBE INTERANNUAL CHANGES IN THE POPULATION STRUCTURE OF ANTARCTIC KRILL AT SOUTH ... differences, due in part to bias arising from a large number of krill in just one of the station net hauls ... population structure of krill around South Georgia during seven cruises between 1989 and 1998. Before 1994 ... the number of l + krill found around South Georgia was very low (proportion of l + krill <7 ...
Science Journal Paper : CCAMLR Science, Volume 6 (CCAMLR Science, Volume 6) : 71–84 : Автор(ы): Watkins, J.L
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Detection and quantitative estimation of krill concentrations by hydroacoustic instruments
Paper Title: Detection and quantitative estimation of krill concentrations by hydroacoustic ... detecting dispersed and surface concentrations of krill lead to considerable underestimates of krill biomass ... in areas surveyed. The task of detecting surface concentrations of krill can be solved with the help ... of towed acoustic antennae. The practical possibility of detecting dispersed krill by hydroacoustic ... ESTIMATION OF KRILL CONCENTRATIONS BY HYDROACOUSTIC INSTRUMENTS K.I. Yudanov (U.S.S.R.) Abstract The ... concentrations of krill lead to considerable underestimates of krill biomass in areas surveyed. The task of ... detecting surface concentrations of krill can be solved with the help of towed acoustic antennae. The ... practical possibility of detecting dispersed krill by hydroacoustic instruments was established on board ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/3 (Selected Scientific Papers, SC-CAMLR-SSP/3) : 123-139 : Автор(ы): Yudanov, K.I.
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Estimating krill recruitment and its variability
Paper Title: Estimating krill recruitment and its variability Abstract / Description: A maximum ... likelihood method is developed for the decomposition of krill density-at-length data into the proportion of ... rate for 1+ krill (the ratio of the number of krill aged one year to the number of krill aged one year ... for 2+ krill (the ratio of the number of two-year-old krill to the number aged two and above) from ... CCAMLR Science, Vol. 1: 55-69 ESTIMATING KRILL ... of krill density-at-length data into the proportion of recruits in a population sampled by a net ... Indian Ocean sectors of the Southern Ocean give a mean recruitment rate for l+ krill (the ratio of the ... number of krill aged one year to the number of krill aged one year and above) of 0.339 with a standard ...
Science Journal Paper : CCAMLR Science, Volume 1 (CCAMLR Science, Volume 1) : 55–69 : Автор(ы): de la Mare, W.K
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