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Change of sex ratio of krill (Euphausia superba) from austral early summer to midsummer in 1983/84 in the vicinity of Prydz Bay, Antarctica
Abstract: In this present report the change of the Antarctic krill distribution pattern from ... December 1983 to January/February 1984 in the vicinity of Prydz Bay was analysed. The results showed the ... remarkable change of sex ratio and coefficient of fatness between the early summer and the midsummer. The ... waters indicating the high ratios of female krill with the high coefficient of fatness were considered to ...
Meeting Document : WG-Krill-94/30 : Автор(ы): M. Naganobu and S. Kawaguchi (Japan)
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Joint Polish/American hydroacoustic survey of Elephant Island in the vicinity of King George Island, 1988
Abstract: The hydroacoustic survey found a low krill abundance in most areas covered by last ... years survey. The total biomass in the vicinity of Elephant Island was estimated from 120 kHz data to be ... 260 k tons and that in the Bransfield Strait South of King George Island was 39 k tons for a total of ... 299 k tons in the combined areas. The estimated 200 kHz survey data were higher, giving 715 k tons ...
Meeting Document : SC-CAMLR-VII/BG/21 : Автор(ы): United States of America
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Review of CCAMLR activities on monitoring marine debris in the Convention Area
Abstract: The current status of national surveys on monitoring of marine debris and their impact ... on marine mammals and seabirds in the Convention Area has been reviewed. The CCAMLR Marine Debris ... debris for the first time from Marion Island (Subarea 58.7). There are 4 sites that have data for more ... wood items, reached a peak in the period 1994-1996 at Bird Island and Signy Island, but have declined ...
Meeting Document : SC-CAMLR-XXIV/BG/13 : Автор(ы): Secretariat
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An interlaboratory comparison of ages estimated for Dissostichus eleginoides from the Argentine Sea, southwest Atlantic Ocean
the effects on readings of different otolith processing methods, scales and otoliths were taken from ... University, Norfolk, Virginia, United States of America. (CQFE). As a consequence of the exchange of otoliths ... carried out with NIWA, and the results presented, it is apparent that the NIWA preparation method produced ... a clearer section. More hyaline bands were visible in the NIWA preparations, particularly near the ...
Meeting Document : WG-FSA-04/45 : Автор(ы): M.C. Cassia (Argentina), P.L. Horn (New Zealand) and J.R. Ashford (USA)
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Review of small-scale research unit boundaries used for the assessment and management of D. mawsoni in Subarea 88.1
Abstract: This paper provides a review of the boundaries of the small scale research units (SSRUs ... ) used to manage the exploratory fishery for D.mawsoni in Subarea 88.1. In determining appropriate SSRU ... boundaries we considered the physical and geographical features of the Subarea including the impact of sea ... ice on fishing practices, as well as the distribution and abundance of the target and bycatch species ...
Meeting Document : WG-FSA-03/29 : Автор(ы): S.M. Hanchet (New Zealand)
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By-catch of rays in the 2002/03 toothfish fishery around South Georgia
Abstract: The 2002/2003 fishing season was the first in which three new policies for rays were ... tried: • It was the first in which vessels were asked to cut off all rays at water level to assist ... survival and conservation of rays; • It was the first in which very good quality information was available ... from all observers’ tally periods on the catch rates of rays cut off the line; • In 2003 the UK, with ...
Meeting Document : WG-FSA-03/58 : Автор(ы): D.J. Agnew, J. Pearce and M. Endicott (United Kingdom)
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Review of management boundaries (SSRU’s) and biological parameters used for the assessment of D. mawsoni in Subarea 88
Abstract: This paper provides a review of the boundaries of the small scale research units used ... to manage the exploratory fishery for D. mawsoni in Subarea 88.1. In determining appropriate SSRU ... boundaries we considered the physical and geographical features of the Subarea including the impact of sea ... ice on fishing practices, as well as the distribution and abundance of the target and bycatch species ...
Meeting Document : WG-FSA-SAM 03/8 : Автор(ы): P. Horn and S. Hanchet (New Zealand)
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First Annual Report of the CCAMLR Otolith Network, 2002
Abstract: This report presents results from the first exchange of otoliths under the auspices of ... the CCAMLR Otolith Network (CON), following the Workshop on Estimating Age in Patagonian Toothfish ... held at the Centre for Quantitative Fisheries Ecology (CQFE), Old Dominion University, United States ... , from 23 to 27 July 2001. The National Institute of Water and Atmospheric Research, Nelson, New Zealand ...
Meeting Document : WG-FSA-02/51
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Underwater noises produced by research vessels (some comments on acoustic sampling protocol for the Area 48 synoptic survey
Abstract: The underwater vessel noise levels perceived by the echosounder EK-500 transducers of ... three Russian research vessels have been presented. These data have been compared to the estimate of the ... underwater noise level, produced by the Icelandic R/V B.Saemundsson.. Underwater noise level perceived by the ... that the level of underwater noise produced by vessel is an important technical property to be taken ...
Meeting Document : WG-EMM-99/18 : Автор(ы): S. Kasatkina (Russia)
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Improvements to the multiple-frequency method for in situ target strength measurements
Abstract: Refinements have been made to the multiple-frequency method that was recently developed ... to improve the accuracy and precision of in-situ target strength (TS) measurements using split-beam ... echosounders (Demer et al., J. Acoust. Soc. Am. 105(4) 2359:2376 (1999)]. The multiple-frequency method ... improves the rejection of unresolvable and constructively interfering target multiples by combining ...
Meeting Document : WG-EMM-99/38 : Автор(ы): D.A. Demer (USA) and M.A. Soule (South Africa)
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