Resultados de la búsqueda
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Physical oceanographic setting of the Siedlecki January 1987, South Shetland Island data set
Abstract: In the vicinity of the northern tip of Antarctic Peninsula, the Bransfield Straits and ... Pacific Ocean. A series of fronts form which collectively are referred to as the Weddell-Scotia Confluence ... a zone of varied width (10 to 100 Km) of water which can best be considered as continental margin ... water, advected into the region along the extreme western edge of the Weddell Gyre. It is relatively ...
Meeting Document : SC-CAMLR-VII/BG/19 : Autor(es): United States of America
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A methodology for estimating total finfish by-catch of the Area 48 krill fishery
bycatch of the Area 48 krill fishery and quantify the impact of bycatch on the finfish stocks using data ... . Estimates of bycatch rates per tonne of catch were made at a family level for Channichthyidae, Nototheniidae ... rates were applied to estimates of krill catch to estimate precautionary total bycatch numbers of each ... and Notothenia rossii were used to convert total bycatch numbers to biomass at age of 50% maturity ...
Meeting Document : WG-EMM-12/29 : Autor(es): T. Peatman, S.M. Martin (United Kingdom), O.R. Godø (Norway) and R.C. Wakeford (United Kingdom)
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Progress report on the research longline fishery of Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13
so far they have concentrated their sampling effort in the southern section (south of 60˚S), where ... they caught a total of 162.8 tonnes of Dissostichus spp. out of the 200 tonne catch limit (Table 2 ... ). They have taken only 65.2 tonnes of Dissostichus spp. from the northern section to date. A total of 1 ... tagging rate of 5 fish per ton. A total of 213 D. eleginoides and 5 530 D. mawsoni) were measured. The ...
Meeting Document : WG-SAM-13/05 : Autor(es): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Predation release of Antarctic silverfish (Pleuragramma antarctica) in the Ross Sea
Abstract: Between 2001 and 2013 the number of breeding pairs of Adélie penguins (Pygoscelis ... half a million. It has been suggested that predation release of Antarctic silverfish (Pleuragramma ... antarctica) due to fishing of one of its predators, Antarctic toothfish (Dissostichus mawsoni), could have ... , consumption rates and diets of toothfish and Adélie penguins over the Ross Sea shelf as a first test of the ...
Meeting Document : WG-EMM-15/53 : Autor(es): M.H. Pinkerton, P. Lyver, D. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand).
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Molecular analysis of stomach contents from Antarctic toothfish (Dissostichus mawsoni) collected from Area 58 and 88 from 2016 to 2018
, the ecology of D. mawsoni is still fragmental mainly due to the limited accessibility for the sample ... collection. Diet study provides the basic information of feeding relationship among the different trophic ... levels. Since 2016, we have been studying the stomach contents of D. mawsoni by the combination of ... report about the prey item of D. mawsoni collected from the two research areas (58 and 88) from 2016 to ...
Meeting Document : WG-FSA-2019/37 : Autor(es): S.R. Lee, S.-G. Choi, S. Chung, D.H. An and H.-W. Kim
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2003 winter and 2003/04 breeding season
Abstract: In the fourteenth consecutive winter of the survey at Bird Island, South Georgia, the ... number of entanglements increased by 56% compared to last year and the majority of injuries were ... classified as severe (71%). In contrast the sixteenth consecutive summer of reporting saw a decrease of 45 ... % compared to last year and was the lowest number of entanglements recorded since the first observations were ...
Meeting Document : SC-CAMLR-XXIII/BG/14 : Autor(es): Delegation of the United Kingdom
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Energetics of diving in macaroni penguins
free-ranging breeding female macaroni penguins. Measurement of these variables allowed estimation of ... the mass-specific rate of oxygen consumption (VO2) while diving and investigation of the physiological ... accounted for 36% of the variation in dive duration. When VO2 was calculated for dives of different ... durations, 95.3% of dives measured were within the calculated aerobic dive limit (cADL) for this species ...
Meeting Document : WG-EMM-03/39 : Autor(es): J.A. Green, P.J. Butler, A.J. Woakes and I.L. Boyd (United Kingdom)
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An ecosystem-based approach to management: using individual behaviour to predict the indirect effects of Antarctic krill fisheries on penguin foraging
becoming increasingly prevalent, they require a fuller understanding of how individual behaviour determines ... interactions within and between species. 2. Ecological interactions involving krill are of major importance to ... many species within the Antarctic. Despite extensive knowledge of the ecosystem that they occupy, there ... is still incomplete understanding of the links between species and the effect of environmental ...
Meeting Document : WG-EMM-03/34 : Autor(es): S.H. Alonzo, P.V. Switzer and M. Mangel (USA)
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Bird Island, South Georgia during the 1997 winter and 1997/98 pup-rearing season
Abstract: Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... . Only seven seals were observed entangled in the winter, a drop of 59% from 1996. Four of these records ... were from adult females, a much higher proportion than in previous years. The number of entanglements ... in the summer was the lowest recorded to date, being 52% lower than in 1996/97. The percentage of ...
Meeting Document : SC-CAMLR-XVII/BG/11 : Autor(es): Delegation of the United Kingdom
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REVIEW OF CCAMLR ACTIVITIES ON MONITORING MARINE DEBRIS IN THE CONVENTION AREA
Abstract: CCAMLR Members monitor beached debris, entanglement of marine mammals, marine debris ... associated with seabird colonies and animals contaminated with hydrocarbons at a number of sites, primarily ... in Area 48. Overall non-fishing debris items (mostly packaging items) have made up the majority of ... debris reported from monitoring sites. Relatively large amounts of fishing items have been reported at ...
Meeting Document : WG-FSA-08/09 : Autor(es): Secretariat