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REPORT OF THE UK GROUNDFISH SURVEY AT SOUTH GEORGIA (CCAMLR SUB-AREA 48.3) IN JANUARY 2009
Abstract: In January 2009 the UK undertook a bottom trawl survey of CCAMLR Sub-area 48.3 on the ... FV Sil. A total of 71 random and representative 30 min tows were made giving good geographic coverage ... . The estimated mean biomass of Mackerel icefish (Champsocephalus gunnari) calculated using 10 strata ... , updated sea-floor areas and adjusting for the low headline height of the trawl (see CCAMLR WG-FSA (2003 ...
Meeting Document : WG-FSA-09/09 : Автор(ы): M. Belchier, R.E. Mitchell, M.A. Collins, L. Kenny, M. Taylor, J. Nelson and L. Featherstone (United Kingdom)
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ANTARCTIC FUR SEAL PUP PRODUCTION AND POPULATION TRENDS IN THE SOUTH SHETLAND ISLANDS WITH SPECIAL REFERENCE TO SOURCES OF ERROR IN PUP PRODUCTION ESTIMATES
Abstract: This paper reports the results of a ground survey of fur seal colonies from in the ... South Shetland Islands in 2007/08. Multiple counts of pups at each colony were conducted to establish ... census in 2001/02 (10,057 ±142 pups born). Dead pups accounted for 1.64% of the total. A comparison with ... previous censuses over a 20yr period (1987, 1992, 1994, and 1996) indicates the rate of increase in fur ...
Meeting Document : WG-EMM-PSW-08/14 : Автор(ы): M.E. Goebel (USA), D.E. Torres C. (Chile), A. Miller, J. Santora, D. Costa (USA) and P. Diaz (Chile)
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Monitoring results of marine debris at Cape Shirreff, Livingston Island during the 1995/96 Antarctic season
Abstract: The principal results of the monitoring survey on marine debris carried out at Cape ... total of 4 251 articles with a total weight of 65.8 kg were obtained. As occurred in previous seasons ... fisheries were 1 195 articles (strapping bands and net pieces). The total density of marine debris collected ... buildt their nests. On the other hand, four specimens of Arctocephalus gazella were observed with neck ...
Meeting Document : CCAMLR-XV/BG/27 : Автор(ы): Delegation of Chile
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A CHARACTERISATION OF THE TOOTHFISH FISHERY IN SUBAREAS 88.1 AND 88.2 FROM 1997–98 TO 2007–08
of data collected on toothfish and the associated bycatch by all vessels participating in the fishery ... catch was the fourth highest on record with a total of 2666 t against a combined catch limit of 3207 t ... . The management of the SSRUs within the two subareas was changed for the 2006 season as part of a 3 ... -year experiment (SC-CAMLR-XXIV). One of the aims of the experiment was to simplify the administration ...
Meeting Document : WG-FSA-08/22 : Автор(ы): M.L. Stevenson, S.M. Hanchet and A. Dunn (New Zealand)
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SOME FIELD MATERIALS ON AREA AND SEASON OF ANTARCTIC TOOTHFISH SPAWNING
Abstract: On the results of some field materials collected from 2002 till 2008, on the basis of ... length composition analysis of individuals, weight of females’ gonads and sex ratio an attempt was made ... to select locations and periods of Antarctic toothfish mass spawning in some areas of the Pacific ... Ocean and Indian Ocean sectors of the Antarctic. In the Ross Sea area the most probable areas are the ...
Meeting Document : WG-FSA-08/14 : Автор(ы): V. Prutko (Ukraine)
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The biology and ecology of mackerel icefish, Champsocephalus gunnari – an Antarctic fish species that lack haemoglobin
Abstract: The mackerel icefish (Champsocephalus gunnari) is a prominent member of the coastal ... fish fauna of the Seasonal Pack-ice Zone and the islands north of it. Separated into a number of stocks ... exploited since the beginning of the 1970's with reported annual catches exceeding 50- 100 000 tomes in ... some years. Champsocephalus gunnari has many characteristics typical of Antarctic fish species with ...
Meeting Document : WG-FSA-96/24 : Автор(ы): Everson, I., Kock, K.-H.
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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 1994 winter and 1994/95 pup-rearing season
Abstract: Surveys of Antarctic fur seals entangled in man-made marine debris were carried out for ... juveniles. Of entangled animals the proportion of males affected was 67%, approximately the same as in 1993 ... and 1991, but two-thirds of the value recorded in 1990 and 1992. The proportion of entangled animals ... bands and the incidence of net fragment debris was higher than 1993 (but similar to 1991) during the ...
Meeting Document : SC-CAMLR-XIV/BG/08 : Автор(ы): Delegation of the United Kingdom
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Bias in acoustic biomass estimates of Euphausia superba Dana to diel vertical migration
Abstract: The diel vertical migration of Antarctic krill (Euphausia superba) can greatly bias the ... results of qualitative and quantitative hydroacoustic surveys which are conducted with a down-looking ... sonar and independent of the time of day. To demonstrate and quantify these negative biases on both the ... estimates of biomass distribution and abundance, a time-depth-density analysis was performed. Data for this ...
Meeting Document : WG-KRILL-93/48 : Автор(ы): D.A. Demer and R.P. Hewitt (USA)
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Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in Antarctic waters
Abstract: Genetic population structure of the mackerel icefish, Champsocephalus gunnari, in ... subjected to starch gel electrophoresis. sixteen putative enzyme-coding loci were examined, of which 7 were ... 1.15.1.1). Routine scoring of 358 fish at the 16 loci revealed below average levels of genetic variability ... , with the proportion of polymorphic loci, P = 0.175, mean heterozygosities per locus, HL = 0.058, and ...
Meeting Document : WG-FSA-91/22 : Автор(ы): G.R. Carvalho and M. Warren (United Kingdom)
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United States seabird research undertaken as part of the CCAMLR Ecosystem Monitoring Program, 1987–1988
Abstract: As part of the NMFS/AMLR program to provide information for the effective management of ... Antarctica’s marine living resources, three permanent monitoring sites were established on the western side of ... on the breeding success, fledging weights, growth rates and diets of Chinstrap and Adelie Penguins ... were obtained. Although it is too early to draw conclusions on any aspects of the data, this report ...
Meeting Document : SC-CAMLR-VII/BG/17 : Автор(ы): United States of America
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