Search results
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Echo integration in low signal to noise regimes: methods of noise estimation and removal
Abstract: The results of acoustic surveys, especially in low signal-to-noise regimes, are ... contribution to the above-threshold-signal cannot later be removed in post processing. The only solution is to ... log unthresholded data and to correct for noise in post processing. Integrated data collected at 120 ... requires that logged data have high resolution in both depth and distance. It can be applied so long as ...
Meeting Document : WG-EMM-97/74 : Author(s): Higginbottom, I., Pauly, T.
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The state of exploited fish stocks in the Southern Ocean - a review
until the season 1989/90. About two thirds of the catches have been taken in the Atlantic Ocean sector ... (mainly South Georgia) while the remaining one third originated primarily from the Kerguelen waters in the ... most heavily affected by fishing are those of Notothenia rossii in both sectors, Notothenia squamifrons ... in the Indian Ocean sector and of Champsocephalus gunnari in the South Orkney Islands/Antarctic ...
Meeting Document : SC-CAMLR-X/BG/13 : Author(s): Delegation of Germany
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Revision of icefish (C. gunnari) stock estimate in the South Georgia area on the basis of the Russian trawl-acoustic survey 2002
Abstract: Revision of icefish (С.gunnari) stock estimate in South Georgia Area was caused by ... for target strength estimates using in situ measurement data; the combination of trawl and acoustic ... icefish target strength estimated obtained from in situ measurement data by bootstrap-method and biomass ... estimates and its statistical characteristics. Major sources of uncertainties in icefish stock estimates and ...
Meeting Document : WG-FSA-SAM-04/10 : Author(s): Gasyukov, P.S., Kasatkina, S.M.
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Considerations for research plan design and implementation in data-poor fisheries
of research plans in data poor fisheries submitted under CMs 21-02 and 24-01 in 2011 and in 2012. We ... biological risks arising from uncertainty in the research implementation process. Author(s): S.J. Parker, B ... implementation in data-poor fisheries Approval: Approved ...
Meeting Document : WG-SAM-13/37 : Author(s): S.J. Parker, B. Sharp, A. Dunn (New Zealand) and K. Taki (Japan)
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Updated 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
Abstract: Japan and South Africa initiated a multi-year research plan in Statistical Subarea 48.6 ... as outlined in CM 41-04 (2012 & 2013) during the 2012/13 fishing season. Progress achieved during ... recaptured. Even though almost 50% of the recaptures are within season the progress in the northern section ... data to undertake tag-based assessment of the Dissostichus resource in the north of Subarea 48.6. We ...
Meeting Document : WG-FSA-14/67 : Author(s): R. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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Progress report for the third year of the research fishery for Dissostichus spp. in Subarea 48.6 being jointly undertaken by Japan and South Africa: 2013–2015.
Abstract: A multi-year research plan as outlined in CM 41-04 (2012, 2013 & 2014) was ... participated in the research project in each of the three fishing seasons and the progress achieved during the ... . mawsoni, respectively were recaptured. It is encouraging that 10 tagged D. mawsoni have been recaptured in ... the southern half of Subarea 48.6 already in the current season, more than total number for all ...
Meeting Document : WG-SAM-15/50 : Author(s): R.W. Leslie (South Africa), K. Taki, T. Ichii (Japan) and S. Somhlaba (South Africa)
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A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on results from the 2016 random stratified trawl survey
Abstract: The annual Random Stratified Trawl Survey was undertaken in Division 58.5.2 in the ... the population. These projections indicate that catches of 561 t in the 2016/17 season and 402 t in ... : A preliminary assessment of mackerel icefish (Champsocephalus gunnari) in Division 58.5.2, based on ...
Meeting Document : WG-FSA-16/26 : Author(s): D. Maschette and D. Welsford
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The applicability of international conservation instruments to the establishment of marine protected areas in Antarctica
, depending on their specific provisions, full application in Antarctic waters may be difficult, inappropriate ... concluded that although direct application of other international conservation agreements is in most cases ... timeframe in which these should take place. In addition, the consideration of Antarctic waters in parallel ... establishment of marine protected areas in Antarctica Approval: Approved ...
Meeting Document : WG-EMM-04/32 : Author(s): S. Grant (United Kingdom)
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Trends of the Dissostichus eleginoides stock using the sequential population analysis (SPA) model in Subarea 48.3: 1992-1996
Abstract: This paper presents a model of Sequential Population Analysis (SPA), based in catch at ... under CCAMLR procedures. The model was programmed in a spreadsheet (Excel v.5) using the Solver function ... calculated by the WG-FSA in 1995 when F2/3 was applied, which allowed height level of spawning biomass per ... other hand, the descent trends in Total, Fishable and Spawning Biomass showed a stabilization during the ...
Meeting Document : SC-CAMLR-XV/BG/14 : Author(s): Delegation of Chile
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On the scientific observation and krill escape mortality in the krill fishery
national scientific observer onboard krill fishing vessel became mandatory. In 2008, the Ukraine ... regards to the subdivision of the precautionary catch limit among SSMUs in Area 48 (CCAMLR XXVII/43 ... so as to provide more systematic coverage by international/national scientific observers in the krill ... to have systematic observer coverage in the krill fishery. Experiments to estimate krill escapement ...
Meeting Document : CCAMLR-XXIX/45 : Author(s): Delegation of Ukraine