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Multiple acoustic estimates of krill density at South Georgia during 2000/2001 reveal significant intra-annual and spatial variability
that is consistent with observations from previous years, krill density in the western box mid-season ... around South Georgia in the 2000/2001 season: in October 2000 (early-season); during late December ... / early January 2000/2001 (mid-season), and in March 2001 (late-season). The surveys were the first in a ... early1980s). We hoped that conducting several surveys in one season would provide information on short-term ...
Meeting Document : WG-EMM-01/15 : Автор(ы): A.S. Brierley, C. Goss, S.A. Grant, J.L. Watkins, K. Reid, M. Belchier, I. Everson, M.J. Jessop, V. Afanasyev and J. Robst (United Kingdom)
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The migration patterns of Electrona carlsbergi (Tåning, 1932)
sectors of Antarctica E. carlsbergi is represented by immature specimens 7 to 8 cm in length and 2 years ... specimens in the Subantarctic zone, classified as a breeding area, decreases to 20-40%, while the number of ... mature specimens 8.5-11 cm in length and 3-5 years old increases. Based on the dynamic processes of the ... describes possible ways and means (mechanisms) by which this species carries out meridional migration in ...
Meeting Document : WG-FSA-93/18 : Автор(ы): A.N. Kozlov (Russia)
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Selecting sampling frequency for measuring diving behaviour
seals: an increase in interval from 5s to 15s resulted in 20% of dives being unrecognised, a 38 ... marine animals to the point where very detailed studies of variation in diving behaviour and performance ... between individuals, seasons and years are possible. The degree to which the sampling interval selected ... fur seals and southern elephant seals representative of the extremes of diving in pinnipeds. For both ...
Meeting Document : WG-CEMP-93/14 : Автор(ы): I.L. Boyd (United Kingdom)
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Results and standing stock biomass estimates of finfish from the 2001 US AMLR bottom trawl survey of the South Shetland Islands (Subarea 48.1)
. rossii have not recovered even after commercial fishing has ceased for 20 years. The overall abundance of ... bottom trawl survey in March, 2001 of the South Shetland Islands. Information on species composition ... Survey. For most species, the standing stock has decreased slightly, although in most cases the 95 ... finfish in the South Shetland Islands has yet to reach a level at which commercial exploitation would be ...
Meeting Document : WG-FSA-01/33 Rev. 1 : Автор(ы): C.D. Jones, K.-H. Kock, D. Ramm, J. Ashford, S. Wilhelms, T. Near, N. Gong and H. Flores
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Male krill grow fast and die young
classes of adult krill was generally high in krill of 30-35 mm total length, always low in 38-42 mm krill ... examined with an extensive dataset derived from scientific surveys in the Indian Ocean sector and the ... southwest Atlantic sector, and from the krill fishery in the Southern Ocean. The percentage of males in size ... , sometimes showed higher values in 45-50 mm krill, but always decreased in the largest krill (>50 mm ...
Meeting Document : WG-EMM-07/P6 : Автор(ы): S. Kawaguchi, L.A. Finley, S. Jarman, S.G. Candy (Australia), R.M. Ross, L.B. Quetin (USA), V. Siegel (Germany), W. Trivelpiece (USA), M. Naganobu (Japan) and S. Nicol (Australia)
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Distribution and ecology of Chaenocephalus aceratus (Channichthyidae) around South Georgia and Shag Rocks (Southern Ocean).
that growth was fast in the first five years with males and females attaining lengths at first spawning ... demersal fish living on the South Georgia shelf where it is caught in low numbers as by-catch in the ... in diet from Euphausia superba and mysids to benthic fish and decapods observed to begin at 250 mm TL ... . In larger fish (> 500 mm TL) the diet was dominated by fish. C. aceratus diet is sufficiently ...
Meeting Document : WG-FSA-07/P5 : Автор(ы): W.D.K Reid, S. Clarke, M.A. Collins and M. Belchier. (Polar Biol., 30 (12): 1523–1533 (2007))
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Informations sur la pêche INN dans les zones économiques exclusives (ZEE) françaises de Kerguelen et Crozet et dans la zone statistique 58 de la CCAMLR
juillet 2017 au 15 juillet 2018 concernant les sous-zones statistiques 58.6, 58.5.1, 58.5.2 incluant les ... Kerguelen et Crozet et dans la zone statistique 58 de la CCAMLR Microsoft Word File: cc-xxxvii-bg-30.docx ...
Meeting Document : CCAMLR-XXXVII/BG/30 : Автор(ы): Délégation française
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Biology, distribution and abundance of Antarctic krill (Euphausia superba) and by-catch
collected from 34 stations of fishing area 58 in Indian Ocean sector of Antarctic region between lat.57°53 ... 'S to 61°13'S and long.30°02'E to 40°05'E. These were analysed onboard FORV Sagar ... trawl. The length frequency analysis indicated a bimodel distribution with 19-20 mm and 53-54mm as the ... most abundant size in the fishing area 58. The average sex ratio of male and female Euphausia superba ...
Meeting Document : WG-EMM-98/37 : Автор(ы): A. Anrose, Z. Klusek, M.K.R. Nair and M. R. Bhoopendranath (India)
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Power analyses of CEMP indices for penguins at Admiralty Bay and fur seals at Cape Shirreff and Seal Island
trends over a period of 20 years may be feasible for most indices. Detecting trends in indices A8 and C2 ... values of transformed CEMP indices to breeding year are equal to zero when, in fact, these trends ... probability of rejecting the null hypotheses when they were, in fact, true), three periods of monitoring, and ... 21 levels of annual percent change in the CEMP indices. We conducted a number of “combined analyses ...
Meeting Document : WG-EMM-03/52 : Автор(ы): G.M. Watters, R.P. Hewitt, W.Z. Trivelpiece and M.E. Goebel (USA)
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Analysis of the by-catch of Channichthys rhinoceratus and Lepidonotothen squamifrons from the fisheries at Heard Island and the McDonald Islands (Division 58.5.2)
squamifrons are among the most common species bycaught in the toothfish and mackerel icefish trawl fisheries ... at Heard Island and McDonald Islands (HIMI) (Division 58.5.2). These species are rarely taken in the ... .). In the toothfish fishery both species are taken, whereas C. rhinoceratus is much more common in the ... bycatch of the mackerel icefish fishery than L. squamifrons. Over the 15 years of the fisheries ...
Meeting Document : WG-FSA-12/24 : Автор(ы): G.B. Nowara, D.C. Welsford, S.G. Candy and T.D. Lamb (Australia)
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