Search results
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Foraging areas of black-browed and grey-headed albatrosses breeding on Macquarie Island in relation to marine protected areas
-order predators, there is a paucity of data that can be used to evaluate their efficacy in achieving ... this purpose. 2. We assessed the effectiveness of a network of MPAs around Macquarie Island in the ... Exclusion Zone around Macquarie Island. In contrast, grey-headed albatrosses (T. chrysostoma) spent on only ... 34 % of their time foraging in MPAs. 4. Black-browed and grey-headed albatrosses spent 30 % and 15 ...
Meeting Document : WG-FSA-04/49 : Author(s): A. Terauds, R. Gales, G.B. Baker and R. Alderman (Australia)
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Population assessment of Patagonian toothfish in Subarea 48.4 – 2011 update
Abstract: In this paper we update the assessment of D. eleginoides in the northern half of ... Subarea 48.4 presented in 2010. The CASAL model is improved through the incorporation catch at age data ... , as an alternative to the catch at length data that were the only such data available in 2010. The ... catch at age model generates a yield of 52 tonnes based on CCAMLR decision rules. In 2006 the northern ...
Meeting Document : WG-FSA-11/38 : Author(s): J. Roberts, R. Mitchell and R. Wakeford (United Kingdom)
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Proposal for an extension to the mark recapture experiment to estimate toothfish population size in Subarea 48.4
assessment of D. eleginoides stock size in the Northern Area of 48.4 estimates a vulnerable biomass of ... between 1,000 to 2,000 tonnes. 3. The UK proposes to continue the mark-recapture experiment in Subarea ... 48.4 in the 2008/09 fishing season so as to allow for a full assessment of D. eleginoides stock size in ... the Northern in 2009. 4. Additionally, the UK proposes to commence a mark-recapture experiment in the ...
Meeting Document : WG-FSA-08/46 : Author(s): J. Roberts and D. J. Agnew (UK)
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Change in environmental conditions of the Southern Ocean observed by satellites and data-assimilating models between 1981 and 2019
Abstract: We provide a summary of environmental change in the Southern Ocean over the period of ... movement north of the Subantarctic Front; (3) increasing chl-a and NPP in the Subantarctic Front and around ... the southern limit of the ACC except in the Ross Sea region; (4) decreasing chl-a and NPP in the Ross ... Sea sector and on the Antarctic continental shelf; (5) gradual loss of sea-ice in the Amundsen Sea and ...
Meeting Document : WG-EMM-2019/39 : Author(s): M. Pinkerton
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Report of the UK Groundfish Survey at South Georgia (CCAMLR Subarea 48.3) in January/February 2019
in 2017, but is comparable with the long term average. The highest catches were on the moraine banks ... of the two northern strata and at the western end of Shag Rocks, with one high catch recorded in the ... South West stratum. Clear regional differences in C. gunnari diet composition were observed. At Shag ... . superba as a prey species varied across the four regions at South Georgia, ranging from 10.48% IRI in the ...
Meeting Document : WG-FSA-2019/20 : Author(s): S. Gregory, P. Hollyman, T. Earl, A. Clement, J. Visagie, L. Featherstone and M. Belchier
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Results of the tagging experiment for D. eleginoides in Subarea 48.4
the South Sandwich Islands (Subarea 48.4) in 2006 following one vessel, the Argos Helena, fishing in ... 2005. During this time animals were tagged in order to continue a mark-recapture programme started in ... proposal for continuing research in this area in 2007. Author(s): A. Payne and D.J. Agnew (United Kingdom ... ) Title: Results of the tagging experiment for D. eleginoides in Subarea 48.4 Approval: Approved ...
Meeting Document : WG-FSA-06/56 : Author(s): A. Payne and D.J. Agnew (United Kingdom)
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Seabird mortality on longlines in Australian waters: a case study of progress and policy
, particularly albatrosses, causing widespread declines in populations across the world. However the extent of ... bycatch in the Southern Oceans is best known for the Australian and New Zealand regions. The 10 year ... evolution of the seabird bycatch issue in the Australian Fishing Zone (AFZ), where the magnitude of the ... birds killed in the tuna longline fishery operating around Australia are albatrosses, including species ...
Meeting Document : WG-FSA-98/29 : Author(s): R. Gales, N. Brothers, T. Reid, D. Pemberton and G.B. Baker (Australia)
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Assessing status and change in Southern Ocean ecosystems
trends of Southern Ocean marine ecosystems overall, against which change in ecosystem structure and ... function can be unambiguously assessed in the future. This challenge includes being able to assess the ... likelihood of different states in the future. These requirements are needed by different bodies regionally ... and globally for making tactical decisions, such as catch limits and conservation requirements in the ...
Meeting Document : WG-EMM-13/36 : Author(s): A. Constable (Australia), D. Costa (USA), E. Murphy (United Kingdom), E. Hofmann, O. Schofield (USA), A. Press (Australia), N. Johnston (United Kingdom) and L. Newman (Australia)
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Updated status of Notothenia rossii, Gobionotothen gibberifrons and Notothenia coriiceps in inshore sites of the South Shetland Islands: results of a long-term monitoring program (1983–2016) at Potter Cove
Abstract: Trammel net surveys were continued in Potter Cove, South Shetland Islands, Antarctica ... , to achieve a 33-year record, 1983-2016, to monitor changes in the prevalence of three species of ... consistent with those achieved from the most recent offshore bottom trawl research cruises in 2007 and 2012 ... around the South Shetland Islands: 1) a continuous increase in the abundance of N. rossii; 2) further ...
Meeting Document : WG-FSA-16/02 : Author(s): E. Barrera-Oro, E. Marschoff and D. Ainley
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Entanglement of Antarctic fur seals (Arctocephalus gazella) in man-made debris at Bird Island, South Georgia, during the 2004 winter and 2004/05 breeding season
Abstract: The number of entanglements in the fifteenth consecutive winter surveyed, decreased by ... 64% from last year. For the first time since records started in 1990, none of the injuries were ... % compared to last year; the lowest number of entanglements recorded since 1989. As in previous years, most ... individuals observed entangled in debris were juveniles (80% of winter and 50% of summer observations). Of the ...
Meeting Document : SC-CAMLR-XXIV/BG/16 : Author(s): Delegation of the United Kingdom