Search results
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Unmanned Aerial Vehicles based monitoring of indicator species populations on King George Island (Subarea 48.1)
the austral summer 2014/15 season. During photogrammetric flights the high-resolution images of the ... compared with the results of measurements taken at the same time from the ground level. During expedition ... ) less than 5 cm. Precision estimation of individuals count was based on the photo interpretation of ... images. The use of UAV for monitoring of indicator species, enabled data acquisition from areas ...
Meeting Document : WG-EMM-15/48 : Author(s): M. Korczak-Abshire, A. Zmarz, R. Storvold, M. Rodzewicz, K. Chwedorzewska, A. Kidawa and A. Znój (Poland)
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Supervised and unsupervised (RapidKrill) estimates of krill density from DY098
Abstract: We compare supervised, using the interactive software Echoview™, and unsupervised ... , using python, processing of acoustic data collected during the UK cruise DY098. The same ... data processing procedures are applied in both methods, and we show that the unsupervised method comes ... up with a similar estimate of krill NASC and krill density as the supervised method. An ...
Meeting Document : SG-ASAM-2019/09 : Author(s): A. Ariza, S. Fielding and R. Blackwell
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Seabird mortality associated with Patagonian toothfish longliners in Falkland Island waters during 2002/03 and 2003/04
Abstract: The Patagonian toothfish longline fishery set approximately 7.5 million hooks and 9.6 ... million hooks in 2002/03 and 2003/04, respectively. Observers were present during the setting of 59% of ... all lines set during 2002 – 2004 to record adherence to the above provisions and record seabird ... mortality for 2002/03 was 80 Black-browed albatross and for 2003/04, 45 Black-browed albatross. The rates ...
Meeting Document : WG-FSA-05/56 : Author(s): H. Otley and T. Reid (United Kingdom)
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Yet further krill yield computations
Abstract: Preliminary computations are carried out for the krill yield model of Butterworth et al ... . (1993), adjusted as requested by the fifth meeting of WG-KRILL. This involves modifying the input ... distributions for the lengths at recruitment and maturity, natural mortality and the extent of recruitment ... variability. Sensitivity tests are carried out to assess the consequences of avoidance of gravid females by ...
Meeting Document : WG-Krill-94/23 : Author(s): R.B. Thomson and D.S. Butterworth (South Africa)
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Hook loss in CCAMLR exploratory fisheries
Abstract: The development of methods to estimate unaccounted fishing mortality from lost fishing ... lines requires an estimate of the number of lost hooks that are attached to sections of line. In 2011 ... hook loss data was provided by 21 of the 34 vessel/fishery reports with an estimated 317920 hooks lost ... attached to sections of lines. In 2012 15 of the 26 vessel/fishery reports provided non-zero data with an ...
Meeting Document : WG-FSA-12/65 : Author(s): Secretariat
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Bycatch of skates (Rajiformes) and grenadiers (Macrouridae) in longline fisheries in Subarea 48.3
Abstract: This paper investigates factors affecting the bycatch of skates (Rajiformes) and ... grenadiers (Macrouridae) taken by the longline fishery in statistical subarea 48.3. Bycatch was greater for ... vessels using autoline system than for those using the “Spanish” system, due to differences in proximity ... to the sea bed and type of bait used. The areas of greatest catch rates differed by area and depth ...
Meeting Document : WG-FSA-14/47 Rev. 1 : Author(s): V. Laptikhovsky, M. Soeffker, M. Belchier, J. Roberts, C. Darby, J. Ellis and R. Scott (United Kingdom)
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CEMP data summary and updated analysis of CEMP data from Subarea 48.
Abstract: The CCAMLR Ecosystem Monitoring Program (CEMP) was established to detect changes in the ... in accordance with the ‘ecosystem approach’. This report provides: Details on CEMP data that have ... been submitted for 2016/17, including an area-based comparison of the 2016/17 observations with the ... submitted to the Secretariat. An update on the spatial analysis of CEMP data in subarea 48.1 using Combined ...
Meeting Document : WG-EMM-17/17 : Author(s): CCAMLR Secretariat
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Report on recent French catches of sea pens (Pennatulacea) in Lena Bank (CCAMLR sector 58.4.4b)
Abstract: Important catches of sea pens (Pennatulacea, NTW) in the 58.4.4b sector (Lena bank ... ) have been reported during the CCAMLR SAM Working Group 2018 (see WG-SAM-18/31 "Annual report of ... specimens have been collected according to the French protocol for benthic invertebrate survey, which ... includes the exhaustive collection of the organisms caught by the longlines (see WG-EMM-17/09). This report ...
Meeting Document : WG-FSA-18/23 : Author(s): A. Martin, J. Blettery and M. Eléaume
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Emperor penguins – vulnerable to projected rates of warming and sea-ice loss; an international collaboration to inform species-related conservation decision-making and conservation planning
Abstract: An international group of scientists, from the United Kingdom, Australia, Finland ... , France, Germany, Monaco, the United States and SCAR, including the majority of those holding long-term ... to review the dependence and vulnerability of emperor penguins to ongoing and projected climate ... change. The outcomes of this work will have relevance to the ATCM, CEP and possibly CCAMLR because of its ...
Meeting Document : SC-CAMLR-38/BG/10 : Author(s): Delegations of the United Kingdom, Australia, France, Germany, SCAR and ASOC
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Krill fishery information
Abstract: A compilation of information and work pertaining to the krill fisheries in CCAMLR ... waters in presented, including: • A report on catches for the last, complete season (2001/02) and an ... update on catches in the current season (2002/03); • Further development of measures of overlap between ... the krill fishery and krill predators; • An updated plan for the krill fishery in Area 48 ...
Meeting Document : WG-EMM-03/28 : Author(s): Secretariat