Search results
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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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A study on calibration for commercial echosounder using bottom backscattering strength in Antarctic
fishing vessel to use it in estimating biomass of Antarctic krill (Euphausia superba). The method of ... calibration was to analyze the difference between the bottom backscattering strength of the commercial ... , was examined to verify the calibration result. The analysis result confirmed the possibility of ... calibration by bottom backscattering strength, since the proportion of krill swarm signals within 2 dB < S ...
Meeting Document : SG-ASAM-17/P01 : Author(s): S.-G. Choi, H. Lee, K. Lee and J. Lee
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Domain 1 Marine Protected Area Preliminary Proposal – PART C: Biodiversity Analysis by MPA zones
Doman 1; while some of them occupy very small areas –such as polynyas– others extend over larger areas ... for almost 90% of the conservation objects, including the protection for all the areas considered to ... be important for birds, mammals and fishes. The proposed MPA fulfils the level of protection agreed ... by the international community for Domain 1. Substantial reductions of this MPA could potentially ...
Meeting Document : WG-EMM-17/25 Rev. 1 : Author(s): Delegations of Argentina and Chile
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Developing and applying a general abundance estimator for land-based predator surveys: Adélie penguins as a case study
Abstract: The development of a general estimator of abundance would facilitate a standardised ... approach to regional and circum-Antarctic surveys of land-based predators. Such a generalised estimator is ... outlined, and its applicability illustrated by adapting it to the specific problem of estimating the ... abundance of Adélie penguins at regional scales in Antarctica, given a range of logistical scenarios and ...
Meeting Document : WG-EMM-04/56 : Author(s): C. Southwell (Australia)
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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)