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  1. 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

    Abstract:  Zones of 20 km width are defined around selected colonies of penguins distributed ... around the coasts of the South Shetland and South Orkney islands. Krill catches in these zones are shown ... result of oceanographic conditions. About 50% of the catch in 48.1 from December to March was taken ... within 40 km of the coast, and 90% within 80 km in all years 1988-1990. In 1987 and 1988 75% of the catch ...

    Meeting Document : WG-CEMP-91/25 : Author(s): D.J. Agnew (Secretariat)

  2. AMLR Hydroacoustic Survey System Description of Methods, A Case Study

    Abstract:  The AMLR hydroacoustic system used for surveys in the vicinity of Elephant Island and ... King George Island during 1987-1989 has hardware and software components. The method of analysis ... proceeds from the basic integration data (lm bins by 1min outputs) to the stratification of these data into ... blocks of area and finally a total estimate of abundance and statistical confidence limits about the ...

    Meeting Document : WG-KRILL-89/10 : Author(s): M.C. Macaulay (USA)

  3. Managing ecosystem uncertainty: critical habitat and dietary overlap of top-predators in the Ross Sea

    Abstract:  We summarize three types of data in order to increase appreciation among fishery ... managers of the close spatial and temporal ecological overlaps among top predators in the Ross Sea Shelf ... ): killer whale (type C), Weddell seal, Emperor penguin, Adélie penguin, and 4 species of flighted birds ... coast of Victoria Land from 1990 through 2004, we summarize the foraging ranges from these sites and the ...

    Meeting Document : WG-EMM-06/29 : Author(s): Testa, J.W., Stewart, B.S., Olmastroni, S., Lyver, P., Karl, B., Eastman, J., Barton, K., Ballard, G., Toniolo, V., Wilson, P., Ainley, D.

  4. Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2002 winter and 2002/03 breeding season

    Abstract:  Results of the surveys of entanglement of Antarctic fur seals at Bird Island, South ... reported here. The overall number of entanglements showed a decrease from last year of 55% in winter and 67 ... %. Severe injuries accounted for 33% of entanglements over winter and 25% during the summer. As in previous ... years, most individuals observed entangled in debris were juveniles (88% of winter and 81% of summer ...

    Meeting Document : SC-CAMLR-XXII/BG/11 : Author(s): Delegation of the United Kingdom

  5. Entanglement of Antarctic fur seals Arctocephalus gazella in man-made debris at Signy Island, South Orkney Islands 2000/01

    Abstract:  The results of the fifth annual survey of entanglement of Antarctic fur seals at Signy ... which there were no sightings of seals with neck collars of man-made debris. Data are compared with ... Island, these indicated that the number of entangled fur seals had increased (by57%) compared to the ... previous year. The absence of entangled seals at Signy Island could be due to the relatively low numbers of ...

    Meeting Document : SC-CAMLR-XX/BG/04 : Author(s): Delegation of the United Kingdom

  6. Indices of prey availability near the Seal Island CEMP site: 1990 through 1996

    Abstract:  Four indices of prey availability are calculated for prey surveys conducted in the ... vicinity of the Seal Island CEMP site during the austral summers of 1990-96. The indices are measures of ... AMLR surveys each year were sub-sampled to include the foraging range of predators breeding at Seal ... Island. The average depth of the prey field and its average distance from Seal Island were positively ...

    Meeting Document : WG-EMM-96/22 : Author(s): Hewitt, R.P., Demer, D.A., Watters, G.

  7. Integrated environment–prey–predator interactions off South Georgia: implications for management of fisheries

    Abstract:  The oceanography of the South Georgia region is principally that of the Southern Ocean ... rather than the South Atlantic. A combination of factors, including advection, local bathymetry and high ... local productivity, leads to relatively large concentrations of krill (Euphausia superba) in the region ... and this is a food source for large populations of penguins and seals that breed at South Georgia. A ...

    Meeting Document : WG-EMM-01/27 : Author(s): I.L. Boyd (United Kingdom)

  8. Factors affecting the number and mortality of seabirds attending trawlers and longliners in the Kerguelen area

    Abstract:  The factors affecting the number and the mortality of seabirds attending long-liners ... ), based on observations carried out onboard by dedicated observers. Twenty-four species of seabirds were ... mainly according to the year, the cloud cover and the presence of offal for long-liners. The dumping of ... offal increased the numbers of birds attending the vessel, especially when offals can be handled easily ...

    Meeting Document : WG-FSA-99/26 : Author(s): H. Weimerskirch, D. Capdeville and G. Duhamel (France)

  9. Preliminary acoustic results from the New Zealand IPY-CAML survey of the Ross Sea region in February-March 2008

    Ross Sea region in support of the International Polar Year Census of Antarctic Marine Life (IPY-CAML ... ). The 50 day voyage on the research vessel Tangaroa involved an extensive survey of marine organisms ... , and from the continental shelf and slope of the Ross Sea to unexplored seamounts and abyssal plains ... trawls were carried out at randomly selected locations over the shelf as part of the core biodiversity ...

    Meeting Document : SG-ASAM-09/05 : Author(s): R. O’Driscoll, G. Macaulay, S. Gauthier, M. Pinkerton and S. Hanchet (New Zealand)

  10. Entanglement of Antarctic fur seals (Arctocephalus gazella) by man made debris at Bird Island, South Georgia, during the 2005 winter and 2005/06 breeding season

    Abstract:  Results of the survey of entanglements of Antarctic fur seals at Bird Island, South ... reported here. Two entanglements were observed in the winter, a decrease of 60% from the previous year, and ... the lowest number seen since records began in 1990. One of these involved a male pup entangled in ... individual involved. In contrast there was double the number of observed entanglements during summer of 2005 ...

    Meeting Document : SC-CAMLR-XXV/BG/13 : Author(s): Delegation of the United Kingdom

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