Search results
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JGYM: a java version of the Generalised Yield Model
Abstract: As part of a wider research project aimed at developing management strategies based on ... of the GYM has been developed. The new version has been developed directly from the specifications ... identical input, then this would be a major step towards a verification of the GYM. This paper, which will ... be given in the form of a Power Point presentation, will discuss how the JGYM was developed, indicate ...
Meeting Document : WG-FSA-SAM 03/16 : Author(s): R.N. Vilhelm (United Kingdom)
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ASSESSMENT OF SPATIAL-TEMPORAL DYNAMICS OF STANDARDIZED CPUE FOR KRILL FISHERY IN THE AREA 48
contributing this variability at different degree of aggregated fishery statistics have been presented. In ... Abstract: The spatial-temporal dynamics of standardized abundance indices of krill in Area 48 ... yesteryear the authors revealed “diagnostics specificity” of GLMM tuning for CPUE standardization: many hauls ... normal distribution. In this study the approaches to improve the diagnostics of GLLM tuning by using ...
Meeting Document : WG-EMM-11/28 : Author(s): S.M. Kasatkina and P.S. Gasyukov (Russia)
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CURRENT ABUNDANCE OF ADÉLIE PENGUIN BREEDING POPULATIONS ALONG THE KEMP AND MAC.ROBERTSON LAND COASTS, EAST ANTARCTICA: APPLICATION OF NEW SURVEY AND ESTIMATION METHODS FOR BROAD-SCALE POPULATION ASSESSMENT
Abstract: Application of new methods for estimating the abundance of breeding Adélie penguin ... populations along the Kemp and Mac.Robertson Land coasts of east Antarctica are described. Methods include use ... of sample survey designs, distance sampling to estimate detectability, virtual delineation of sample ... plot boundaries, cameras to collect adjustment data and adjustment of counts for detectability and ...
Meeting Document : WG-EMM-11/31 : Author(s): C. Southwell, J. McKinlay, K. Newbery, L. Emmerson, M. Low, R. Pike, D. Wilson, D. Southwell and L. Einoder (Australia)
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Assessment of the status of the toothfish stock in Subarea 48.3
run to generate these levels of exploitable biomass at the start of 2004. This generated estimates of ... Abstract: We conducted several different assessments of toothfish in Subarea 48.3 using four ... apparently not sufficient to generate realistic estimates of current biomass using GYM. ASPM runs coded in AD ... loss rates and fishery age-based selectivity. Estimations based on local depletions of toothfish ...
Meeting Document : WG-FSA-04/82 : Author(s): D.J. Agnew and G.P. Kirkwood (United Kingdom)
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Report on 2017 Activities of the Southern Ocean Observing System (SOOS), relevant to the work of CCAMLR
scientific collaboration. Further, SOOS requests input from SC-CCAMLR on the “SOOSmap” data discovery tool ... , including discussions on key data layers of interest to, and potentially provided by CCAMLR. These requests ... scientific collaboration. Further, SOOS requests input from SC-CCAMLR on the “SOOSmap” data ... . These requests will form the foundation for discussions at the proposed joint workshop between SOOS and SC-CCAMLR ...
Meeting Document : SC-CAMLR-XXXVI/BG/14 : Author(s): Submitted by SCOR
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A review of tag-based stock assessments of the Antarctic toothfish Dissostichus mawsoni in Subarea 48.4
rate population abundance, and the mis-identification of species at release. This paper presents a ... Abstract: The stock abundance of Antarctic toothfish in Subarea 48.4 is estimated using tag based ... the Petersen estimation method to the use of the Chapman bias corrected estimator; a correction ... specifically developed to reduce estimation bias in populations with low recaptures, a feature typical of the ...
Meeting Document : WG-FSA-15/44 : Author(s): N. Walker, M. Soeffker, V. Laptikhovsky and T. Earl (United Kingdom)
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Towards an ecosystem status assessment for South Georgia ‘Variability of Southern Ocean Ecosystems’ Project Team
Abstract: We present the beginnings of a compilation of a suite of physical and biological ... oceanographic data, and concomitant data on abundance and condition of some key zooplankton species and ... vertebrate higher predator species, collected at sea off South Georgia and from Bird Island between 1996 and ... 1999. We plan to use these data, some of which arise from the British Antarctic Survey's Core ...
Meeting Document : WG-EMM-00/61
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The krill fishery observer manual – points to be revised
consists of nine forms and some of them were developed independent from other forms. Once the observer at ... problems, workload limit, and also the problem of the commercial confidentiality. The current manual ... necessary revision must be undertaken by simulating the observer’s work onboard as a package of krill ...
Meeting Document : WG-EMM-02/29 : Author(s): S. Kawaguchi (Japan)
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How fast do demersal longlines sink?
rates in still water of longlines made by Fiskevegn, the world’s leading manufacturer of demersal ... conventional (unweighted) lines. Conventional lines made from 9 mm polyester sank at 23 cm/second compared to ... 18 cm/second for Silver lines of the same diameter. Samples of lines set by hand in still water sank ...
Meeting Document : WG-FSA-02/25 : Author(s): G. Robertson (Australia), E. Moe, R. Haugen (Norway) and B. Wienecke (Australia)
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Convener’s summary on intersessional activities of the Subgroup for the Implementation of the CCAMLR-2008-IPY-Survey
Abstract: At its last meeting in October 2004 the Scientific Committee agreed that a synoptic ... focus on krill but would collect a range of ancillary physical and biological data including ... intersessional steering group to formulate CCAMLR’s Expression of Intend for activities in the IPY and submit ... -Survey’) Title: Convener’s summary on intersessional activities of the Subgroup for the Implementation ...
Meeting Document : SC-CAMLR-XXIV/BG/02 Rev. 1 : Author(s): V. Siegel (Convener, Steering Group ‘CCAMLR-2008-IPY-Survey’)