Search results
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Modelling krill recruitment
Abstract: A method is developed for using observed values of the mean proportion of recruits and ... its variance to model recruitment in a krill population in terms of numbers of recruits. The method ... includes the calculation of natural mortality and other parameters consistent with the observed ... proportional recruitment parameters. A procedure is given for generating families of recruitment functions ...
Meeting Document : WG-KRILL-93/13 : Author(s): W. de la Mare (Australia)
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Report on an Antarctic cetacean survey on board a Chilean fishing vessel in February 2016
. A total of 44 fin whale (Balaenoptera physalus) groups comprising 61 individuals were recorded on ... effort, and a total of 28 humpback whale (Megaptera novaeangliae) groups comprising 47 individuals. A ... , 35 sightings of mainly mixed-species groups and feeding aggregations of large whales were observed ... , comprising 217 individuals, including calves of both humpback and fin whales. The preliminary results of the ...
Meeting Document : WG-FSA-16/19 : Author(s): S. Viquerat, H. Herr, K.-H. Kock and P. Arana
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Research plan for the exploratory longline fishery for Dissostichus spp. in Divisions 58.4.1, 58.4.2 and Subarea 48.6 in 2014/2015 (including CTD data in 88.1, 88.2)
Abstract: Most things related to Dissostichus spp. in the eastern side of Antarctic has not been ... sizes were vulnerable with a big range of about 1,000-2,000 t per SSRU in 58.4.1 and 100-1,500 t per ... -web of Dissostichus spp. has started to be studied in the southern Ross Sea. Some studies on biology ... of the fish have been evaluated, but those are not enough to assess the stocks and consider proper ...
Meeting Document : WG-SAM-14/21 : Author(s): Delegation of the Republic of Korea
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CONVERSION FACTORS AND GREEN WEIGHT CALCULATION IN THE ANTARCTIC KRILL FISHERY
number of reasons:.; o Differences in the method of processing the same products o Seasonal variation o ... Spatial variation o Krill water content o Reporting errors (recording percentage recovered instead of ... total catch estimates as the majority of vessels interviewed made direct estimates of green weight ... catches; and, A need for closer monitoring of processing methods, calculation of green weight catches, and ...
Meeting Document : TASO-09/06 : Author(s): Moir Clark, J., Peatman, T.
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Krill catch distribution in relation to predator colonies, 1987-1991
Abstract: The distribution of krill catches in relation to predator colonies in Subareas 48.1 and ... 48.2 is shown. 74-90% of catches in Subarea 48.1 are taken within 100 km of predator colonies between ... December and March, and these are between 10 and 18% of the estimated total penguin consumption in this ... period. The pattern of fishing is very consistent in all years 1988-1991 in Subarea 48.1, but is more ...
Meeting Document : WG-KRILL-92/18 : Author(s): Secretariat
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Research concept on catchability to study toothfish abundance/stocks in the Antarctic marine areas
Abstract: Main two methods, which are used for the estimation of abundance/stocks of toothfish in ... CPUE data. But calculation of toothfish abundance with using these methods demands a number of ... assumptions, which sometimes broaden too much the possible values of the calculated parameters. The authors ... present a method approach concerning possible use of a bottom trawl survey to estimate a minimum ...
Meeting Document : WG-SAM-18/19 : Author(s): K. Demianenko, L. Pshenichnov, O. Diripasko and V. Gurianov
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Fishery information for WG-FSA-03
Abstract: Summary information on CCAMLR fisheries of relevance to the work of WG-FSA is presented ... (summaries of observer data), SC-CAMLR-XXII/BG/1 (catches in the Convention Area) SC-CAMLR-XXII/BG/9 (summary ... of notification for new and exploratory fisheries), SCIC-03/5 (estimates of IUU catches) and CCAMLR ... -XXII/BG/8 (implementation of conservation measures). Author(s): Secretariat Title: Fishery ...
Meeting Document : WG-FSA-03/6 : Author(s): Secretariat
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CCAMLR fishery information 2011
Abstract: Summary of fishery-related information for WG-FSA including availability of data ... , catches of target and by-catch species in assessed and exploratory fisheries, tagging rates and the tag ... overlap statistic, notifications (fisheries, research and VMEs), development of species profiles and ... findings of the review of CCAMLR’s data management systems. Where applicable, the 2011 draft fishery ...
Meeting Document : WG-FSA-11/08 : Author(s): Secretariat
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Are tagging targets set in appropriate terms?
is set in terms of the number of fish tagged per mass of fish caught thereby mixing “units” of ... that defining the target in terms of a percentage of the number caught may be more appropriate. Author ...
Meeting Document : WG-SAM-12/25 : Author(s): R.W. Leslie and C. Heinecken (South Africa)
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Monitoring and management in the Antarctic – making the link between science and policy
Abstract: Management of human impacts in the Antarctic requires an effective system of monitoring ... to provide information about the process being managed and the effectiveness of management actions ... . Human impacts arise as a result of processes that originate in the region (endogenous) and those that ... originate outside the region (exogenous). A number of monitoring programmes have been established in both ...
Meeting Document : WG-EMM-07/P9 : Author(s): K. Reid (United Kingdom)