Search results
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Do krill fisheries compete with macaroni penguins? Spatial overlap in prey consumption and krill catches during winter
and the krill fishery can occur. We tracked adult macaroni penguins from a colony in South Georgia ... biomass of food consumed during the winter period. We combined these to produce a surface of the tonnes of ... . However macaroni penguins had a very wide pelagic distribution across the Scotia Sea whereas the fishery ... fisheries should the latter expand in the future, and provides a framework for assessing predator-fishery ...
Meeting Document : WG-EMM-14/02 : Author(s): N. Ratcliffe, S.L. Hill, I.J. Staniland, R. Brown, S. Adlard, C. Horswill and P.N. Trathan (United Kingdom)
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging program in Subareas 88.1 and 88.2 for 2006/07
2007. Overall, a total of 15 088 Antarctic toothfish have been reported as released and 458 recaptured ... . There was also some evidence that more fish are recaptured after a longer time at liberty on the slope ... than in the North. In addition, a Patagonian toothfish tagged near Macquarie Island was recaptured in ... tagged by different vessels in different local regions. Further investigation is required. Author(s): A ...
Meeting Document : WG-FSA-07/40 : Author(s): A. Dunn, S.M. Hanchet and S.L. Ballara (New Zealand)
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Ecological risk management and the fishery for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
Toothfish to below a level that ensures stable recruitment. 2. Bycatch species harvest: Risks of depletion ... of other harvested species to below a level that ensures stable recruitment. 3. Ecosystem impacts ... -quantitative and qualitative estimates are needed because of a lack of knowledge and inability to predict the ... CCAMLR. Author(s): M.H. Pinkerton, A. Dunn and S.M. Hanchet (New Zealand) Title: Ecological risk ...
Meeting Document : WG-EMM-07/24 : Author(s): M.H. Pinkerton, A. Dunn and S.M. Hanchet (New Zealand)
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Interactions between seabirds and deep water hake trawl gear: an assessment of impacts in South African waters 2004/05
of fishery wastes. Using a bootstrapping approach to estimate 95% confidence intervals (CI), the ... dumping in summer. Serious warp incidents were independent of age among albatrosses, but there was a ... tendency for immature gannets to have a higher interaction rate than adults. Deaths resulting from ... trawls where dumping takes place and the average duration of dumping. A simple model was developed which ...
Meeting Document : WG-FSA-06/41 : Author(s): B.P. Watkins, S.L. Petersen and P.G. Ryan (South Africa)
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Diets of sympatrically breeding Adélie, gentoo and chinstrap penguins from Admiralty Bay, South Shetland Islands, Antarctica, 1981 to 2000
-annual variability in mean food load sizes during chick rearing and there was a high degree of coherence ... stomach contents and noted a significant increase in the proportion of digested versus fresh stomach ... contents of a penguin’s food load has more than twice the caloric value of a comparable mass of fresh krill ...
Meeting Document : WG-EMM-03/29 : Author(s): W.Z. Trivelpiece (USA), K. Salwicka (Poland) and S.G. Trivelpiece (USA)
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Seabird mortality in the Patagonian toothfish longline fishery around the Prince Edward Islands, 1996–2000
(a globally important seabird breeding site) commenced in 1996 following high levels of Illegal ... trips between 1996 and 2000, allowing a thorough excellent understanding of the impact of this fishery ... killed species. However, during the first year, when lines were set during the day and night, a ... measures and a progressive movement farther away from the islands over the years. We estimate that the ...
Meeting Document : WG-FSA-01/8 : Author(s): D.C. Nel, P.G. Ryan and B.P. Watkins (South Africa)
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Hydrography and acoustic biomass estimates of Antarctic krill (Euphausia superba) near the South Shetland Islands, Antarctica, during January 2000: preliminary results
the vicinity of South Shetland Islands (SSI), a hydroacoustic/oceanographic survey was conducted by ... the R/V Onnuri from 9 to 19 January 2000. The acoustic data were obtained using a Simrad EK500 ... a Bongo net (mesh size: 0.333 mm, 0.505 mm) to determine their size composition and stage of ... density of krill near the SSI area was 12 g/m2 with a coefficient of variance (CV) of 14.5%. The mean ...
Meeting Document : WG-EMM-00/52 : Author(s): D. Kang, Y. Lee, H.-C. Shin, W. Lee and S. Kim (Republic of Korea)
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Beach litter survey - Signy Island, South Orkney Islands 1995/96
Abstract: A beach litter survey was carried out on Signy Island, South Orkney Islands during the ... Signy Island. At Foca Cove, 26 items were found with a combined weight of 1.20 kg, and at Cummings Cove ... identified as originating from the research station. The 1995/96 survey data show a reduction in both the ... 1995/96 is a real trend rather than an artifact of reduced sampling effort. The total number of plastic ...
Meeting Document : CCAMLR-XV/BG/16 : Author(s): Delegation of the United Kingdom
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Entanglement of Antarctic fur seals in marine debris at Cape Shirreff and San Telmo Islets, Livingston Island, Antarctica: 1988–1997
results indicate that 45% of the entanglement material found in a total of 20 individuals (nine subadult ... marine debris. over the South Shetland archipelago area through a cooperative inter-institutional ... biota, specially over individuals of A. gazella, and for this purpose we present as an annex to the ... document, a form for its completion by every Antarctic base, refuge, or camp present in the mentioned area ...
Meeting Document : SC-CAMLR-XVI/BG/33 : Author(s): Delegation of Chile
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Fish and squid in the diet of king penguin chicks, Aptenodytes patagonicus, during winter at sub-Antarctic Crozet Islands
summer by king penguins were either very rare in winter (Electrona carlsbergi) or accounted for a smaller ... Electrona subaspera = 1.0%). The greater diversity of prey in winter suggests a more opportunistic feeding ... behaviour at a time probably marked by a change in prey availability. Both the known ecology of the fish and ...
Meeting Document : WG-EMM-97/09 : Author(s): Cherel, Y., Ridoux, V., Rodhouse, P.G.