Search results
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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 ... likelihood of different states in the future. These requirements are needed by different bodies regionally ... Commission for the Conservation of Antarctic Marine Living Resources, and to provide strategic advice, such ... likelihood of future states be assessed? What are the gaps in knowledge that are required to be able to ...
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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Haul data analysis from the Polish krill fishery in 1997–1999
Abstract: The analysis of fishing data obtained from the ship’s log of the Polish commercial ... vessel M/T Pollux facilitated the characterization of catches and concentrations of krill between ... of 60-70 minutes. Differences in catch rates in various areas and years were observed. The highest ... concentrations occurred deeper, at depths of 10-140 m, while at night the concentrations were closer to the ...
Meeting Document : WG-EMM-00/17 : Author(s): E. Jackowksi (Poland)
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CCAMLR Fisheries: 2009 Update
Abstract: Compendium of information on fisheries of relevance to the work of WG-FSA including ... availability of data, data-related developments, catches in assessed and exploratory fisheries, notifications ... for fisheries and research and estimates of IUU fishing. Where applicable, WG-FSA’s 2009 fishery ...
Meeting Document : WG-FSA-09/04 : Author(s): Secretariat
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Seabird interactions with long-lining operations during an exploratory fishing cruise for Dissostichus eleginoides to South Sandwich Islands, Antarctica
Abstract: During seven operations involving the setting and hauling of long-lines to catch ... interactions with seabirds were assessed. Bird numbers increased rapidly after dawn and large numbers of Cape ... , giant and storm petrels and smaller numbers of white-chinned petrels and black-browed albatrosses were ... hook; nevertheless these aggregations of birds are clearly potentially vulnerable to setting operations ...
Meeting Document : SC-CAMLR-XII/BG/08 Rev. 1 : Author(s): Delegations of United Kingdom and Chile
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Can acoustic methods be used to monitor grenadier (Macrouridae) abundance in the Ross Sea region?
to assess stock status of grenadiers in the Ross Sea and to ensure ecological relationships are ... maintained. There may be potential to use fisheries acoustic methods to obtain estimates of grenadier ... abundance. Acoustic data collected during New Zealand’s International Polar Year Census of Marine Life ... slope are grenadiers. The acoustic target strength distribution of single targets was very similar to ...
Meeting Document : WG-FSA-12/P11 : Author(s): R.L. O’Driscoll, S.M. Hanchet and B.S. Miller
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Commercial fishing vessel as research vessels in the Antarctic – requirements and solutions exemplified with a new vessel
Abstract: The climate-induced changes presently seen in the ecosystems of Antarctic region ... require a precautionary approach with respect to the human use of these ecosystems. In particular ... impacts on the harvested stocks as well as the associated ecosystem. Due to the vastness and remoteness of ... the Antarctic region research vessel capacity is not readily available for conventional coverage of ...
Meeting Document : WG-EMM-13/15 : Author(s): O.R. Godø (Norway), C. Reiss (USA), V. Siegel (Germany) and J.L. Watkins (United Kingdom)
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Progress report on the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2012/13 and 2013/14
reported and achievements for the first two months of the 2013/14 season are briefly mentioned. Over the ... first 14 months of the Research fishery a total of 318 Dissostichus eleganoides and 1660 D. mawsoni have ... been tagged and released, and 31 tagged toothfish have been recaptured. Even though almost 50% of the ... toothfish could be recaptured by the end of the current season to enable a tag-based assessment of the ...
Meeting Document : WG-SAM-14/10 : Author(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Progress report on the Weddell Sea Research Program Stage II
Abstract: Results of longline survey on Antarctic toothfish in the Weddell Sea (Stage II) are ... presented in the paper. Options I and II of the survey were carried out from February 10 to February 22 ... , 2014. A total of 34 longlines were set: the Option I – 10+20 and the Option II – 4 at the depths ... ranging from 605 to 2031 m. A total number of hooks- 116 100, fishing area – 13565 km 2. Catch value of ...
Meeting Document : WG-FSA-14/03 Rev. 2 : Author(s): A.F. Petrov, I.I. Gordeev, S.V. Pianova and E. F. Uryupova (Russia)
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CCAMLR TAGGING PROGRAM
tagging details of a greater proportion of tags than reported last year which has resulted in an improved ... proportion of the tags that can now be linked to tagging events in exploratory fisheries (Table 1). The ... CCAMLR database of some information on tag deployments and recaptures from tagging schemes that are ... inventories of these tags to the Secretariat (WG-FSA 08 paragraph 3.56). This request, including a tag ...
Meeting Document : WG-SAM-09/04 : Author(s): Secretariat
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Towards a new method for age determination in Antarctic krill, and evidence that krill shrink under natural conditions
maintained in conditions of low food availability. Recent studies have also demonstrated that E. superba ... -length and the crystalline cone number of the compound eye was examined. Samples collected in the late ... be a more reliable indicator of age than body-length alone. The ratio of crystalline cone number to ... body-length offers a method for detecting the effect of shrinking in natural populations of krill. On ...
Meeting Document : WG-Krill-94/17 : Author(s): W. de la Mare (Australia)