Search results
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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
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The structure and spatial distribution of Antarctic krill aggregations from acoustic observation in the South Georgia area
Abstract: Results of acoustic surveys carried out in winter months of 2000 and 2002 demonstrate ... significant distinctions in spatial distribution patterns of krill in the northwestern and the northeastern ... that in winter months in the northwestern part where foraging areas of dependent predators are located ... 100 g/m2 determined as potential fishing grounds were located in the northeastern part of South ...
Meeting Document : WG-EMM-04/66 Rev. 1 : Author(s): S.M. Kasatkina (Russia)
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Proportional recruitment indices of Antarctic krill from Japanese fisheries data in Subareas 48.1, 48.2 and 48.3 during 1980 through 1997
R1 and R2 in Subarea 48.1 generally showed similar trends to Siegel et al. (1 998)'s values ... around the Elephant Island. However, the values especially R1 in this study were extremely smaller than ... the distribution of small krill by commercial fisheries. Inter-annual pattern of R1 and R2 in Subarea ... operation periods and occasional small sample size, interpretation of it's pattern in this Subarea ...
Meeting Document : WG-EMM-98/33 : Author(s): S. Kawaguchi, T. Ichii and M. Naganobu (Japan)
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PROPERTIES OF KRILL DISTRIBUTION IN PELAGIC AND COASTAL SSMUs OF THE SOUTH ORKNEY ISLANDS SUBAREA ACCORDING TO THE DATA OF SCIENTIFIC OBSERVATIONS AND FISHERY
Abstract: In this paper the krill spatial distribution in the in coastal and pelagic SSMUs of the ... presented based on the CCAMLR 2000 Survey data. It is shown, that despite the high biomass concentrated in ... long-term observations and fishery in Subarea 48.2. The types of geostrophic current fields and ... correspondent fishing ground allocations in the South Orkney Islands area revealed from 1962 to 1997 are ...
Meeting Document : WG-EMM-08/55 : Author(s): S.M. Kasatkina and V.N. Shnar (Russia)
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Statistical problems in krill stock hydroacoustic assessments
the methods applied to establish biomass in a survey area and the second is the improvement in ... accuracy of target-strength measurements. In the case of statistical methods, there are no clear guidelines ... survey methods assume the population is fixed in space, relative to the sampling interval. There remain ... several unsatisfied needs for improvements in sampling design and tests for systematic trends in survey ...
Meeting Document : SC-CAMLR-VII/BG/22 : Author(s): United States of America
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Development of the Patagonian toothfish (Dissostichus eleginoides) tagging program in Division 58.5.2, 1997–2014
toothfish tagged and released, and 4925 recaptures. The data derived from this program has been valuable in ... estimating key population parameters for toothfish in this region, and have been used in the 2014 stock ... assessment (Ziegler, et al, 2014) in various ways including: local abundance estimators; natural mortality ... currently be used in an unbiased manner to estimate stock abundance. Developing spatially explicit models ...
Meeting Document : WG-FSA-14/43 : Author(s): D.C. Welsford, C. Péron, P.E. Ziegler and T.D. Lamb (Australia)