Search results
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Report on the status of wandering, black-browed and grey-headed albatrosses at South Georgia
censused by ground counts, and black-browed and grey-headed albatrosses mainly by yacht-based digital ... conducted in the mid 1980s, numbers of these two species appear to have decreased by 26% and 14 ... by ground counts, indicate more rapid declines: 4.0% p.a. from 1989/90-2003/04 for black-browed ...
Meeting Document : WG-FSA-04/71 : Author(s): S. Poncet (United Kingdom),G. Robertson (Australia), R. Phillips (United Kingdom), K. Lawton (Australia), B. Phalan, J. Croxall and P. Trathan (United Kingdom)
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An integrated assessment model for Antarctic krill: progress update
weighted, by whether natural mortality was estimated by the model or pre-assigned a value of 0.8, and by ... for most combinations of samples grouped by year, area, and leg was somewhat lower when it was ...
Meeting Document : WG-EMM-12/27 : Author(s): D. Kinzey, G. Watters and C. Reiss (USA)
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Do krill fisheries compete with macaroni penguins? Spatial overlap in prey consumption and krill catches during winter
, the macaroni penguin, and the krill fishery by examining the spatial overlap in prey consumption and ... caught by the fishery. Results Adult macaroni penguins from South Georgia consumed 126,472 tonnes of ... krill during the winter which is similar to the 98,431 tonnes caught by fisheries over the same period ... . The proportion of the estimated krill stock taken by macaroni penguins and the krill fishery was small ...
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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Modelling the impact of krill fishing on seal and penguin colonies
Abstract: A key area of concern highlighted by the Scientific Committee of the Commission for the ... region. The dynamics of krill in this region are strongly influenced by advective processes. A key ... ) are necessary given that there is a flux of krill through this region with its islands habited by ... spatial modelling framework that could be used to couple flux estimates with estimates of removals by both ...
Meeting Document : WG-EMM-05/14 : Author(s): É.E. Plagányi and D.S. Butterworth (South Africa)
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Beach debris survey Signy Island, South Orkney Islands 1999/2000
from three study beaches. The debris was counted, measured and classified by type,material, mass and ... since 1998/99 by 17% but was still the second highest since 1995/96. Plastic waste was predominant, as ... into force by CCAMLR in 1995/96 has been effective and should continue. Classifying the waste by source ...
Meeting Document : SC-CAMLR-XIX/BG/06 : Author(s): Delegation of the United Kingdom
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Entanglement of Antarctic fur seals Arctocephalus gazella in man made debris at Signy Island, South Orkney Islands, 1998/99
entangled but had lost their collars by the time of observation. All of the animals involved were juvenile ... males, the main component of the population at this time of year. The number of sightings increased by ... entangled fur seals had also increased (by 84%) since 1997/98 and decreased (by 8%) since 1996/97. Packaging ...
Meeting Document : SC-CAMLR-XVIII/BG/06 : Author(s): Delegation of the United Kingdom
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Fatty acid signature analysis from the milk of Antarctic fur seals and southern elephant seals from South Georgia: implications for diet determination
used in marine ecosystems in which diet determination by more direct methods is difficult and sometimes ... profiles determined by temperature programmed gas chromatography. Possible prey species collected from ... . Southern elephant seal data could be distinguished from Antarctic fur seals by lower levels of the fatty ... acids 16:4 n1, 18:2 n6, 18:4 n3, 18:4 n1 and 20:5 n3 and by higher levels of 18:0, 18:1 n9/ n11 (i.e. 18 ...
Meeting Document : WG-EMM-99/44 : Author(s): D.J. Brown, I.L. Boyd, G.C. Cripps and P.J. Butler (United Kingdom)
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A critical re-examination of the evidence for a possible dependence of Weddell seals (Leptonychotes weddellii) on Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea, Antarctica
. As a new approach, we also estimate Weddell seal food requirements by considering nutritional quality ... -energy food resource for Weddell seals that possibly cannot be adequately replaced by other prey, in ... populations on toothfish, and hence possible impacts of toothfish removal by fisheries, is primarily hindered ... by (a) insufficient information on Weddell seal diet, due to inadequate temporal coverage and biased ...
Meeting Document : WG-EMM-13/28 : Author(s): R. Eisert, M.H. Pinkerton (New Zealand), S.D. Newsome and O.T. Oftedal (USA)
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Diets of Antarctic toothfish estimated from fatty acids and stable isotopes
Antarctic toothfish, by-catch and their stomach contents were collected for the past five years in the eight ... characterized by high proportions of monounsaturated FAs and low proportions of polyunsaturated FAs, differing ... were well established by self-organizing map (SOM) analysis. Similar FA profiles and SI values of ... shifts on the nonmetric multidimensional scaling plot and the SOM map by realistic diet proportions ...
Meeting Document : WG-FSA-17/12 : Author(s): C.-K. Kang, S.-G. Choi, J. Lee, J. Lee and D. An
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e-sc-xxx-a06.pdf
... . These higher predators were found to be widely distributed across the southern Indian Ocean, and to overlap ... that it was unlikely that the values of the Mertz area (see paragraph 3.21) would be found in areas further ... also noted that the toothfish population found to the east of Enderby Land to the Mertz area ... methodology for the Ross Sea region used by New Zealand ... 2011. The Workshop was co-convened by Dr P. Penhale (USA) and Prof. P. Koubbi (France) and was hosted ... by IPEV and the Agence des Aires Marines Protegées (AAMP). 1.2 The Co-conveners welcomed all ... reference as agreed by the Scientific Committee (SC-CAMLR-XXIX, paragraph 5.22). The adopted agenda is in
application/pdf attached to:WS-MPA-11Meeting Report : WS-MPA-11