Search results
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The breeding biology and distribution of Adelie penguins: adaptations to environmental variability
breeding areas by Adelie penguins, following two to three years of failure at "poor" sites ... biomass of the Western Antarctic Peninsula region, and serve as focal animals for our Long Term Ecological ... Research (LTER) study of the effects of environmental variability on animal populations in the Antarctic ... of Adelie penguins in the Southern Ocean are variability in sea ice cover, ocean circulation patterns ...
Meeting Document : WG-EMM-96/58 : Author(s): Fraser, W.R., Trivelpiece, W.Z.
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The distribution of spatial management and Antarctic krill catch across pelagic bioregions in the Southern Ocean
provide standardised and accessible information on the location and extent of spatial fisheries management ... measures in the Southern Ocean. We used the GIS in combination with catch data and the results of the 2007 ... CCAMLR bioregionalisation exercise to examine the relative spatial distribution of fishing activities ... , existing management, and ecological characteristics. Such analysis is a necessary part of systematic ...
Meeting Document : WG-EMM-12/15 : Author(s): S.M Grant, S.L. Hill and P. Fretwell (United Kingdom)
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INTERACTIONS OF PATAGONIAN TOOTHFISH FISHERIES WITH KILLER AND SPERM WHALES IN CROZET EXCLUSIVE ECONOMIC ZONE: AN ASSESSMENT OF DEPREDATION LEVELS AND INSIGHTS ON POSSIBLE MITIGATION SOLUTIONS
operational factors on depredation. When killer whales were absent at the beginning of the line hauling ... longline fishery is exposed to high levels of depredation by killer and sperm whales. In this context, this ... study (i) provides estimations of annual depredation levels on a 5-years period (2003-2008), (ii ... observed on respectively 32.6%, 18.6% and 23.4% of the 4289 lines hauled out over this period. Over this 5 ...
Meeting Document : WG-IMAF-09/12 : Author(s): P. Tixier, N. Gasco, G. Duhamel and C. Guinet (France)
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Development of a five-year work plan for the CCAMLR Scientific Committee
Abstract: At last year’s meeting, it was agreed that a five-year work plan for the Scientific ... , paragraphs 13.8 to 13.20). It was agreed that the work should be led by the Chair of the Scientific Committee ... with input from the conveners of its working groups and that it should be made available for ... the first stage in the development of the five-year work plan and draws on recommendations arising ...
Meeting Document : WG-EMM-17/02 : Author(s): M. Belchier (Chair of SC-CAMLR)
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Adélie penguin population change in the pacific sector of Antarctica: relation to sea-ice extent and the Antarctic Circumpolar Current
that of annual estimates of breeding population size of Adélie penguins Pygoscelis adeliae at colonies ... Abstract: One of the longest continuing data sets involving a marine organism in the Antarctic is ... on Ross Island, Ross Sea, 1959 to 1997. The sizes of these colonies have displayed significant ... physical environmental factors during that part of the record with comparable sea-ice satellite imagery ...
Meeting Document : WG-EMM-01/23 : Author(s): P.R. Wilson (New Zealand), D.G. Ainley, N. Nur, S.S. Jacobs (USA), K.J. Barton (New Zealand), G. Ballard and J.C. Comiso (USA)
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Survey results on abundance and biology of toothfish in Division 58.4.3b by Shinsei maru No.3 during 2006/07–2011/12 and proposal of the consecutive survey in 2012/13
tonnes seems to be appropriate for the 2012/13 survey. We aimed the establishment of CASAL catch-at-age ... information for the stock status and biology of toothfish in the Division 58.4.3b (Banzare Bank), using a ... Japanese commercial longline vessel Shinsei maru No. 3, during 2006/07 and 2011/12. Total number of hauls ... ranged from 22 to 148 during the six cruises. Total catch of Dissostichus spp. ranged from 9 to 108 ton ...
Meeting Document : WG-FSA-12/56 : Author(s): K. Taki, T. Iwami, M. Kiyota and T. Ichii (Japan)
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Spatial and temporal operation of the Scotia Sea ecosystem: a review of large-scale links in a krill centred food web
phytoplankton blooms, which at times can cover an area of more than 0.5 million km2, probably result from the ... Abstract: The Scotia Sea ecosystem is a major component of the circumpolar Southern Ocean system ... Current (ACC) and waters from the Weddell–Scotia Confluence dominate the physics of the Scotia Sea ... mixing of micronutrients into surface waters through the flow of the ACC over the Scotia Arc. This ...
Meeting Document : WG-EMM-07/P8 : Author(s): E.J. Murphy, J.L. Watkins, P.N. Trathan, K. Reid, M.P. Meredith, S.E. Thorpe, N.M. Johnston, A. Clarke, G.A. Tarling, M.A. Collins, J. Forcada, R.S. Shreeve, A. Atkinson, R. Korb, M.J. Whitehouse, P. Ward, P.G. Rodhouse, P. Enderlein, A.G. Hirst, A.R. Martin, S.L. Hill, I.J. Staniland, D.W. Pond, D.R. Briggs, N.J. Cunningham and A.H. Fleming (United Kingdom)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
caught at deeper waters and have a larger mean length than Patagonian toothfish. There is not evidence of ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... toothfish, accumulated catch across years yielded 1,353 tons with the majority of the catch coming from ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ...
Meeting Document : WG-SAM-12/33 : Author(s): R. Wiff (Chile), M. Belchier (United Kingdom) and J. Arata (Chile)
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A characterisation of the toothfish fishery in Subarea 48.6 from 2003/04 to 2011/12
caught at deeper waters and have a larger mean length than Patagonian toothfish. There is not evidence of ... , location, size structure and maturity of Dissostichus spp. Information on the composition of bycatch ... toothfish, accumulated catch across years yielded 1,353 tons with the majority of the catch coming from ... was reported exclusively in the SSRUs 48.6A and 48.6G. Most of the catches were reported by vessels ...
Meeting Document : WG-FSA-12/38 : Author(s): R. Wiff (Chile), M. Belchier (United Kingdom), J.C. Quiroz and J. Arata (Chile)
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Predation release of Antarctic silverfish (Pleuragramma antarctica) in the Ross Sea
Abstract: Between 2001 and 2013 the number of breeding pairs of Adélie penguins (Pygoscelis ... adeliae) at breeding colonies in the southern Ross Sea more than doubled from about 235 000 to more than ... half a million. It has been suggested that predation release of Antarctic silverfish (Pleuragramma ... antarctica) due to fishing of one of its predators, Antarctic toothfish (Dissostichus mawsoni), could have ...
Meeting Document : WG-EMM-15/53 : Author(s): M.H. Pinkerton, P. Lyver, D. Stevens, J. Forman, R. Eisert and S. Mormede (New Zealand).