Résultats de la recherche
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Long term variability in the diet and reproductive performance of penguins at Bird Island, South Georgia
present in 89 % of samples and were the main prey (> 50 % by mass) in 10 years of the study. Antarctic ... and were the main prey in 12 years, with Champsocephalus gunnari and Lepidonotothen larseni the most ... frequently recorded species, in 51 % and 33 % of samples respectively. The energy or mass of krill in the ... diet was the most reliable predictor of breeding success (the number of chicks fledged per breeding ...
Meeting Document : WG-EMM-17/P02 : Auteur(s): C.M. Waluda, S.L. Hill, H.J. Peat and P.N. Trathan
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The winter pack-ice zone provides a sheltered but food-poor habitat for larval Antarctic krill
Abstract: A dominant Antarctic ecological paradigm suggests that winter sea ice is generally the ... main feeding ground for krill larvae. Observations from our winter cruise to the southwest Atlantic ... sector of the Southern Ocean contradict this view and present the first evidence that the pack-ice zone ... is a food-poor habitat for larval development. In contrast, the more open marginal ice zone provides ...
Meeting Document : WG-EMM-18/P04 : Auteur(s): B. Meyer, U. Freier, V. Grimm, J. Groeneveld, B.P.V. Hunt, S. Kerwath, R. King, C. Klaas, E. Pakhomov, K.M. Meiners, J. Melbourne-Thomas, E.J. Murphy, S.E. Thorpe, S. Stammerjohn, D. Wolf-Gladrow, L. Auerswald, A. Götz, L. Halbach, S. Jarman, S. Kawaguchi, T. Krumpen, G. Nehrke, R. Ricker, M. Sumner, M. Teschke, R. Trebilco and N.I. Yilmaz
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Results from the groundfish survey conducted in CCAMLR Subarea 48.3 in January/February 2011
Abstract: The 2011 groundfish survey took place at South Georgia and Shag Rocks on the FV Sil ... between the 27th January and 6th February 2011. 87 random hauls were completed, with good coverage across ... the shelf. Catch-weighted length frequencies of mackerel icefish indicated that 3+ sized fish ... tonnes. Euphausiidae was the dominant prey item in the mackerel icefish diet with increased dietary ...
Meeting Document : WG-FSA-11/29 : Auteur(s): J. Brown, S. Gregory, K. Brigden, R. Benedet, O. Hogg, P. Brewin and L. Featherstone (United Kingdom)
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To the problem of distribution of different species of toothfishes Dissostichus
Abstract: According to the results of the long-term studies (1967–1991) in expeditions to the sub ... -Antarctic and Antarctic waters of the Indian Sector of the Southern Ocean, distribution areas of the ... Patagonian and Antarctic toothfish are clearly cut. It was concluded that the areas of these toothfish ... species were not overlapped in the area under review. Author(s): Prutko, V.G. Title: To the problem of ...
Meeting Document : WG-FSA-97/20 : Auteur(s): Prutko, V.G.
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Deployment of research hauls in the exploratory fisheries for Dissostichus spp. in Subareas 48.6 and 58.4 in 2009/10
Abstract: ABSTRACT Prior to the 2009/10 fishing season, the Secretariat allocated starting ... positions for research hauls in the exploratory fisheries in Subareas 48.6 and 58.4 (except on BANZARE Bank ... were positions were specified in Conservation Measure 41-07). For each of the 12 notifying vessels, up ... accordance with the conservation measures and allocated positions. Overall the vessels adhered to the ...
Meeting Document : WG-SAM-10/04 : Auteur(s): Secretariat
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Comparison of age- and length-based harvest control rules for the South Georgia icefish (Champsocephalus gunnari) fishery
age vector for the population. An age-based harvest control rule was then applied using the operating ... model dynamics and assuming perfect knowledge of the resource (initial numbers at age, maturity and ... weight at age). The initial numbers at age was also converted to numbers at length, which was used to ... initialise the length based harvest control rule, again assuming perfect knowledge of the resource. Total ...
Meeting Document : WG-SAM-10/12 : Auteur(s): C.T.T. Edwards, R.M. Hillary, R.E. Mitchell and D.J. Agnew (United Kingdom)
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Research plan for the exploratory longline fishery for Dissostichus spp. in 2012/13 in Division 58.4.3a (this is a revision of WG-SAM-12/14)
according to CCAMLR decision rules, it is suggested to continue the research program for the next three ... resubmission. The present research plan proposes to continue the mark-recapture experiment and to collect ... detailed catch, effort and biological data with a nearly same survey design as in the 2012. It will include ... a total of 28 research hauls. The objective of the experiment is to better understand the ...
Meeting Document : WG-FSA-12/29 : Auteur(s): A. Rélot-Stirnemann (France)
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Proposal for a longline survey of toothfish in the northern Ross Sea region (SSRUs 88.2 A and B)
to sample the toothfish populations in the northern areas (61°- 66° S) of SSRUs 88.2A–B. The purpose ... of the research as requested by the Scientific Committee (SC-CAMLR XXXII, paragraph 3.76) is to ... characterise the local toothfish populations found there to better understand stock structure, movement ... models. Additional outcomes of the research relate to mapping the bathymetry of the fishable area ...
Meeting Document : WG-SAM-14/34 : Auteur(s): Delegations of New Zealand, Norway and the United Kingdom
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Proposal for a longline survey of toothfish in the northern Ross Sea region (SSRUs 88.2 A and B)
to sample the toothfish populations in the northern areas (61°- 66° S) of SSRUs 88.2A–B. The purpose ... of the research as requested by the Scientific Committee (SC-CAMLR XXXII, paragraph 3.76) is to ... characterise the local toothfish populations found there to better understand stock structure, movement ... . Additional outcomes of the research relate to mapping the bathymetry of the fishable area, documenting ...
Meeting Document : WG-FSA-14/61 : Auteur(s): Delegations of New Zealand, Norway and the United Kingdom
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Identification of important benthic areas for conservation – using shared data from the Domain 1 MPA planning process
Planning Domain 1 (Western Antarctic Peninsula and Southern Scotia Sea). The results do not constitute any ... proposal for candidate MPAs, however they may be useful in contributing additional information towards the ... according to habitat-forming features such as geomorphology and bathymetry. The core areas are primarily ... located west of the Antarctic Peninsula in the Bransfield Strait and north of the South Shetland Islands ...
Meeting Document : WG-EMM-16/35 : Auteur(s): M. Bristow, S. Grant, M. Santos and A. Capurro