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Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 2000 winter and the 2000/01 breeding season
reported here. The number of entanglements showed an increase from recent years, with 20 entanglements ... injuries accounted for 35% of entanglements over winter and 23% during the summer. As in previous years ... Georgia for the eleventh consecutive winter (2000) and thirteenth consecutive summer (2000/01) are ... , most individuals observed entangled in debris were juveniles (80% of winter and 68% of summer ...
Meeting Document : SC-CAMLR-XX/BG/03 : Autor(es): Delegation of the United Kingdom
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Krill catches and consumption by land-based predators in relation to distance from colonies of penguins and seals in the South Shetlands and South Orkneys, 1987-1990
within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 75% of the catch ... for some years, months and zones of distance from the shore the catch of krill is 50% or more of the ... Abstract: Zones of 20 km width are defined around selected colonies of penguins distributed ... to have a consistent pattern in Subarea 48.1 but an unpredictable distribution in 48.2, probably as a ...
Meeting Document : WG-CEMP-91/25 : Autor(es): D.J. Agnew (Secretariat)
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Linking predator and prey behaviour: contrasts between Antarctic fur seals and macaroni penguins at South Georgia
highest proportion of fish in over 20 years of routine monitoring (46% by mass; particularly the myctophid ... either species. This highlights the importance of myctophid fish as an alternative trophic pathway for ... -based (animal tracking and diet analysis) techniques, we examined variability in the foraging ecology of ... occurred in 80% of fur seal diet samples, with fish remains in 37% of samples. Penguin diets contained the ...
Meeting Document : WG-EMM-10/P07 : Autor(es): C.M. Waluda, M.A. Collins, A.D. Black, I.J. Staniland and P.N. Trathan
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Entanglement of Antarctic fur seal Arctocephalus gazella in man-made debris at Bird Island, South Georgia during the 2001 winter and the 2002 breeding season
here. The overall number of entanglements showed an increase from recent years, with 20 entanglements ... as last year, however the summer entanglements were up 118%. Severe injuries accounted for 30% of ... Georgia for the twelfth consecutive winter (2001) and fourteenth consecutive summer (2001/02) are reported ... entanglements over winter and 23% during the summer. As in previous years, most individuals observed entangled ...
Meeting Document : SC-CAMLR-XXI/BG/04 : Autor(es): Delegation of the United Kingdom
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Results of E.L. Holmberg 1995 fish survey in Subarea 48.3
aggregation of stations in a nested ANOVA model. An increase over last year's values was observed in the ... the Scotia Sea. Plankton samples contained krill more often than last year and an hydroacoustical ... Abstract: The survey comprised 48 bottom trawl hauls taken in subarea 48.3. About 80% of the ... comparison between both cruises. Of these, 20 hauls were located at less than 0.5 miles and 11 between 0.5 ...
Meeting Document : WG-FSA-95/35 : Autor(es): Marschoff, E., Madirolas, A., Balestrini, C., Tossonotto, G., Gonzalez, B., Calcagno, J.
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Notothenia (p.) gibberifrons Stock Status and TAC Estimation in the Area of Shag Rocks (Subarea 48.3)
Abstract: Data on age composition of catches and fishing efforts for 1979/80- 1987/88 were used ... the mean value of fishing mortality for the main commercially taken age groups (2- 4 years); b ... . guntheri abundance was estimated as 227 thousand tons (using all the above-mentioned methods). For 1986/87 ... thousand tons when the Gamma method was used (actual values of first and second age groups abundance were ...
Meeting Document : WG-FSA-88/33 : Autor(es): R. Borodin and K. Shust (USSR)
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The toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2002/03: New Zealand vessel summary
converted to catch-at-age. Fish aged from 13 to 30 years dominated the catch. No progressions of any ... 2002 and 2003 were scaled up to the catch for each year. Also age, growth, and maturity data were ... Abstract: An exploratory fishery for Antarctic toothfish (D. mawsoni) has been in operation for ... toward depths greater than 1000 m in the later years. Length frequency data for Macrourus whitsoni from ...
Meeting Document : WG-FSA-03/44 : Autor(es): M.L. Stevenson, S.M. Hanchet and P.L. Horn (New Zealand)
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Estimation of krill (Euphausia superba) mortality and production rate in the Antarctic peninsula region
0.88 to 0.94 for different years. The exchange rate of water masses and krill biomass within one summer ... Abstract: A net sampling survey for krill was carried out by RV ‘Meteor’ along the Antarctic ... Peninsula from 26 December 1989 to 14 January 1990. Results were compared with data of an identical survey ... rate of Z=0.88 (1989/90) and Z=0.96 (1987/88). Production was estimated and resulted a P/B ratio of ...
Meeting Document : WG-KRILL-91/15 : Autor(es): Delegation of Germany
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2004 winter and 2004/05 breeding season
, this is after an absence of 3 years from the winter records and 2 years from the summer. These findings ... 64% from last year. For the first time since records started in 1990, none of the injuries were ... % compared to last year; the lowest number of entanglements recorded since 1989. As in previous years, most ... individuals observed entangled in debris were juveniles (80% of winter and 50% of summer observations). Of the ...
Meeting Document : SC-CAMLR-XXIV/BG/16 : Autor(es): Delegation of the United Kingdom
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To the problem of assessment of probability of finding Antarctic krill concentrations in Division 58.4.2
researches for creation of an imitation model of krill distribution and search in the Cooperation and ... Cosmonauts Seas (30–80°E). At this the following main problems were addressed:- Systematization of krill ... Abstract: In 1994 the group of above mentioned authors has completed the first stage of ... algorithms for automatic processing of materials by means of computing devices and mathematic analysis of ...
Meeting Document : WG-Krill-94/7 Rev. 1 : Autor(es): V.N. Yakovlev, V.A. Bibik and L.M. Kokoz (Ukraine)