Résultats de la recherche
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Disentangling the influence of three major threats on the demography of an albatross community
% of the variability in survival, with higher survival rates following La Niña events. Habitat ... negative relationships with survival, and explained 21.2% and 22.3-31.6% of the variability. Author(s ... melanophris, grey-headed T. chrystostoma, light-mantled Phoebetria palpebrata and wandering Diomedea exulans ...
Meeting Document : WG-FSA-2019/34 : Auteur(s): J.B. Cleeland, D. Pardo, B. Raymond, G.N. Tuck, C.R. McMahon, R.A. Phillips, R. Alderman, M.-A. Lea and M.A. Hindell
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The Role of Fish as Predators of Krill (Euphausia superba) and Other Pelagic Resources in the Southern Ocean
quantitative winter food studies. However, it is evident from this review that the importance of krill in fish ... diets varies with time and location, and with the suite of prey types available in different regions in ... abundance and community structure of fishes brought about by industrial fishing needs to be considered ...
Meeting Document : CCAMLR-IWC-WS-08/09 : Auteur(s): Collins, M.A., Williams, R., Agnew, D.J., Kock, K.-H., Belchier, M., Shust, K.V., Welsford, D., Hanchet, S., Pshenichnov, L., Barrera-Oro, E.
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A characterisation of the toothfish fishery in Subareas 88.1 and 88.2 from 1997/98 to 2011/12
fishing together with the catch of Dissostichus spp. and bycatch species by year for the period 1997–98 to ... and Subarea 88.2 fisheries have fluctuated over the past 10 years with no overall upward or downward ... last 2–3 years. This appears to be at least partly a result of vessels carrying out more fishing in ... strong year classes. We conclude that there is no evidence for substantial changes in population ...
Meeting Document : WG-FSA-12/42 : Auteur(s): M.L. Stevenson ,S.M. Hanchet, S. Mormede and A. Dunn (New Zealand)
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Report on a random stratified trawl survey to estimate distribution and abundance of Dissostichus eleginoides and Champsocephalus gunnari conducted in the Heard Island region (Division 58.5.2), May–June 2006
overall, with Channichthys rhinoceratus, Champsocephalus gunnari and Macruronus whitsoni also locally ... . Nowara, R. Williams and T. Lamb (Australia) Title: Report on a random stratified trawl survey to ...
Meeting Document : WG-FSA-06/42 Rev. 1 : Auteur(s): G.B. Nowara, R. Williams and T. Lamb (Australia)
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Preliminary assessment of long-term yield of Patagonian toothfish (Dissostichus eleginoides) for the Heard Island region (CCAMLR Division 58.5.2) based on a random stratified trawl survey in June 2005
the range of natural mortality from 0.13-0.2 to 0.13 – 0.165, consistent with slower growth rates of ... fish. Author(s): A.J. Constable, T. Lamb and R. Williams (Australia) Title: Preliminary assessment of ...
Meeting Document : WG-FSA-05/30 : Auteur(s): A.J. Constable, T. Lamb and R. Williams (Australia)
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Scientific background document in support of the development of a CCAMLR MPA in the Weddell Sea (Antarctica) – Version 2018 – Reflection on the recommendations by WG-EMM-17 and SC-CAMLR-XXXVI
questions raised at WG-EMM-17 and SC-CAMLR-XXXVI with respect to the WSMPA proposal (SC-CAMLR-XXXVI, Annex 6 ... . Pehlke and T. Brey Title: Scientific background document in support of the development of a CCAMLR MPA ...
Meeting Document : WS-SM-18/13 : Auteur(s): K. Teschke, H. Pehlke and T. Brey
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COLLAPSE OF SOUTH AFRICA’S PENGUINS IN THE EARLY 21ST CENTURY
from about 56 000 pairs in 2001 to some 21 000 pairs in 2009, a loss of 35 000 pairs (>60%) in eight ... purse-seine fisheries. In Algoa Bay, numbers of African penguins halved from 21 000 pairs in 2001 to 10 ... 000 pairs in 2003. In the Western Cape, numbers decreased from a mean of 35 000 pairs in 2001–2005 to ...
Meeting Document : WG-EMM-11/P8 : Auteur(s): R.J.M. Crawford, R. Altwegg, B.J. Barham, P.J. Barham, J.M. Durant, B.M. Dyer, D. Geldenhuys, A.B. Makhado, L. Pichegru, P.G. Ryan, L.G. Underhill, L. Upfold, J. Visagie, L.J. Waller and P.A. Whittington
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A balanced trophic model of the ecosystem of the Ross Sea, Antarctica, for investigating effects of the Antarctic toothfish fishery
Sea with which to investigate effects of the fishery for Antarctic toothfish (Dissostichus mawsoni). A ... parameters. The Ross Sea is a low primary production system, with high seasonal, spatial and interannual ... objective method of adjustment that takes into account estimates of parameter uncertainty, and appropriately ... ), and 40% (diet fractions). The balanced model presented here has not yet been validated and should be ...
Meeting Document : WG-EMM-07/18 : Auteur(s): M.H. Pinkerton, S.M. Hanchet and J. Bradford-Grieve (New Zealand)
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The utility of satellite remote sensing for identifying the location and size of penguin breeding sites in Antarctica: a review of previous work and specifications of some current satellite sensors
current satellite technology, are discussed. Some specifications of current satellite sensors that may be ... with respect to the following issues: spectral response of surrounding material, variability in the ...
Meeting Document : WG-EMM-03/51 : Auteur(s): C. Southwell and L. Meyer (Australia)
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Predicting changes in the Antarctic krill Euphausia superba population at South Georgia
nature and consequences of changes in krill population dynamics that accompany l1uctuations in its ... length ill the diet of predators at South Georgia from 1991-1997, allowed predictions to be made about ... with model predictions, in 1998 there was a serial change in krill population structure, low krill ...
Meeting Document : WG-EMM-99/37 : Auteur(s): K. Reid, K.E. Barlow, J.P. Croxall and R.I. Taylor (UnitedKingdom)