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Spatial distribution of foraging by female Antarctic fur seals
gradients in the oceans and also by the need to avoid local competition for food. It also tested the ... hypothesis that fur seal predation was capable of causing local depletion of prey species. When foraging in ... sites followed the same pattern of travel. There was no detectable difference in this behavior among ... krill. This suggested that, in extreme cases and assuming that krill influx is limited, female fur seals ...
Meeting Document : WG-EMM-01/26 : Autor(es): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)
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Interannual variations of water thermochaline structure on South Georgia Island, South Orkney Islands and Shetland Islands shelves
characteristics, T,S diagrams' typification has been realized for hydrological stations carried out in the ... area of South Orkney Isls and Shetland Isls in January-February since 1970. Three types of years have ... intermediate cold layer. In some years of this type (1 97 1, 1972, 1978, 1982) the layer had positive ... temperature, while in other years (1980, 1981) the layer temperature was negative. The second year type (1979 ...
Meeting Document : WG-EMM-00/34 : Autor(es): P. Chernyshkov, V. Shnar, O. Berezhinsky and I. Polischuk (Russia)
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Decline of Antarctic fur seal (Arctocephalus gazella) population at SSSI No. 32, South Shetlands, Antarctica, during 1997/98: a discussion of possible causes
also lower than last year. We hipothesize that large scale fluctuations in physical oceanographic ... be changing krill abundance and distribution, in turn affecting local predator reproductive ... following split season (1998/99), a further decrease in pup production, lower weights in pups, and ... considerable decrease in total population due to emigration to better foraging areas. Author(s): R. Hucke ...
Meeting Document : WG-EMM-98/17 : Autor(es): R. Hucke-Gaete, D. Torres, A. Aguayo and V. Vallejos (Chile)
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FIELD IDENTIFICATION GUIDE TO HEARD ISLAND AND MCDONALD ISLANDS (HIMI) BENTHIC INVERTEBRATES: A GUIDE FOR SCIENTIFIC OBSERVERS ABOARD FISHING VESSELS
specific reference material for the identification of benthic invertebrates in areas specific to which ... observer identifications and also to assist in the identification of vulnerable areas, the Scientific ... : paragraph 4.190). In response to this recommendation Australia has developed the ‘Field identification guide ... of invertebrate by-catch when operating in the HIMI region. The Australian Antarctic Division has now ...
Meeting Document : SC-CAMLR-XXVIII/BG/12 : Autor(es): Delegation of Australia
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A history of the exploitation of the Ross Sea, Antarctica
be the least affected stretch of ocean on Earth, although historical effects were not included in the ... by New Zealand to feed sled dogs in the 1950-80s caused the McMurdo Sound population to permanently ... population has since recovered. Some minke whales are now taken in “scientific whaling”, twice more from the ... occurred in slope waters, and therefore their demise from whaling does not apply to the Ross Sea. No ...
Meeting Document : WG-EMM-09/P03 : Autor(es): D.G. Ainley
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INGESTION OF FISHING GEAR AND ENTANGLEMENTS OF SEABIRDS: IMPLICATIONS FOR MONITORING AND MANAGEMENT
legislation prohibits discarding of gear (hooks and line) in offal, and compliance is often unknown. Analysis ... of a 16 year dataset collected at Bird Island indicated that the amount of gear found in association ... with wandering albatross colonies was an order of magnitude greater than in any other species ... higher in giant petrels and wandering albatross than black-browed albatross, and no grey-headed albatross ...
Meeting Document : WG-IMAF-09/10 : Autor(es): R.A. Phillips, C. Ridley, N. Harrison (United Kindom), K. Reid (Secretariat), G.N. Tuck (Australia) and P.J.A. Pugh (United Kingdom)
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FIELD IDENTIFICATION GUIDE TO HEARD ISLAND AND MCDONALD ISLAND (HIMI) BENTHIC INVERTEBRATES
specific reference material for the identification of benthic invertebrates in areas specific to which ... observer identifications and also to assist in the identification of vulnerable areas, the Scientific ... : paragraph 4.190). In response to this recommendation Australia has developed the “Field identification guide ... by-catch when operating in the HIMI region. Based on available data, this publication will include ...
Meeting Document : WG-FSA-08/59 : Autor(es): T. Hibberd and K. Moore (Australia)
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THE ROSS SEA ANTARCTIC TOOTHFISH FISHERY: REVIEW OF THE 3-YEAR EXPERIMENT AND DEVELOPMENT OF MEDIUM-TERM RESEARCH OBJECTIVES AND AN OPERATIONAL FRAMEWORK FOR THE FISHERY
fishery over the next 5–7 years in relation to Article II of the Convention, and to develop an operational ... in relation to Article II of the Convention. As part of this process we identify uncertainties in our ... example, uncertainty in the biological parameters and stock assessment of Antarctic toothfish, uncertainty ... in its ecological relationships with predators and prey, and uncertainty over other ecosystem effects ...
Meeting Document : WG-FSA-08/50 : Autor(es): Delegation of New Zealand
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A comparison of Antarctic krill (Euphausia superba Dana) caught by nets and taken by macaroni penguins (Eudyptes chrysolophus Brandt): evidence for selection?
samples. The krill taken by the macaroni penguins differed significantly from those caught in the nets ... distributions that were statistically different from the original distribution of krill caught in nets on 76 out ... contained three times as many female as male krill, whereas krill caught in nets contained nearly equal ... proportions. The differences in size and maturity of krill taken by penguins are discussed in terms of ...
Meeting Document : WG-EMM-96/08 : Autor(es): Croxall, J.P., Hill, H.J., Trathan, P.N., Watkins, J.L.
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Preliminary study on the breedings of chinstrap and gentoo penguins at Barton Peninsula, King George Island
Abstract: A preliminary survey on 2 species of penguins, chinstrap and gentoo was made in the ... selected from several locations scattered in the colony. The nests were visited by 2-3 day interval and the ... change in the nest content were followed. Chicks were hatched out at 50% of the monitored nests on 18 ... chicks entered late creche stage, they were banded to determine the survival and return rates in the ...
Meeting Document : WG-CEMP-93/23 : Autor(es): H.-C. Shin and S. Kim (Republic of Korea)