Search results
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Re-analysis of CPUE in both species of toothfish in 48.6 area
Abstract: The present report re-analyses data regarding CPUE for both species of toothfish in ... northern area of 48.6 (SSRU 48.6A, 48.6G). This report is a re-analysis of the CPUE time series proposed in ... . Here, the length of the line was used as effort unit and also high CPUE values reported by a Korean ... analysis of catch intention was implemented by using multivariate statistical approach of the catch ...
Meeting Document : WG-FSA-13/63 : Author(s): R. Wiff, J.C. Quiroz (Chile) and R. Scott (United Kingdom)
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ANALYSIS OF VARIABILITY OF KRILL SIZE AND FISH BY-CATCH IN JAPANESE KRILL FISHERY BASED ON SCIENTIFIC OBSERVER DATA
Abstract: To investigate spatio-temporal variability of krill body length and number of bycatch ... hierarchical Bayesian model. The model was composed of multistage cluster units (i.e., years, subarea, vessels ... variability of krill population structure and a difficulty in predicting krill population dynamics. Variances ... of krill length and bycatch fish number by sampling stages were calculated by the multistage sampling ...
Meeting Document : WG-EMM-11/39 : Author(s): T. Okuda and M. Kiyota (Japan)
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Diet composition and feeding strategy of Antarctic toothfish, Dissostichus mawsoni in the research blocks 58.4.2-1, 58.4.1-2, 58.4.1-3, 58.4.1-4, and 58.4.1-5 for the exploratory longline fishery in 2014/2015 of Korea
Abstract: The stocks of Antarctic toothfish, Dissostichus mawsoni were a relatively economically ... and ecologically important fishery resource in the waters of Antarctic. However, there is not enough ... feeding strategy of D. mawsoni in the research blocks 58.4.2-1, 58.4.1-2, 58.4.1-3, 58.4.1-4, and 58.4.1-5 ... as a part of Korean research plan for the exploratory longline fishery for Dissostichus spp. during ...
Meeting Document : WG-FSA-15/57 : Author(s): Delegation of the Republic of Korea
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Updated assessment of the risks of status quo krill fishing and proposed revisions to Conservation Measure 51-07
Abstract: We used an ecosystem model to assess the risks of 1) the most recent distribution of ... . Our results show that the concentration of fishing effort since 2009 increases the risks that predator ... exacerbated by increased catches in Subarea 48.1. We briefly discuss the implications of our results and ... alternative approaches for spatial management of the krill fishery. Author(s): Delegation of the USA Title ...
Meeting Document : SC-CAMLR-XXXV/BG/36 : Author(s): Delegation of the USA
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Results of 2016 pop-off satellite archival tagging of Antarctic toothfish in the Ross Sea region
southern shelf (SSRUs 88.1M,J,L) and northern seamount (SSRUs 88.1B,C) areas of the Ross Sea region. The ... available types of PSAT tags, and to develop methods to support research and monitoring of the Ross Sea ... region Marine Protected Area. All fish were tagged as part of research longline efforts under CM 24-01 ... after the 2015/16 toothfish fishing season had ended. A total of 10 PSAT tags from two manufacturers ...
Meeting Document : WG-SAM-17/33 : Author(s): C.D. Jones and S.J. Parker
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Summary and update of tagging of Patagonian toothfish at Heard and Macquarie Islands
Macquarie Islands are presented, along with a summary of results since the beginning of the programme ... . Results from the programme of archival tagging of toothfish are also presented. Author(s): Delegation of ... Australia Title: Summary and update of tagging of Patagonian toothfish at Heard and Macquarie Islands ...
Meeting Document : WG-FSA-03/70 : Author(s): Delegation of Australia
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ASSESSMENT OF SPATIAL-TEMPORAL DYNAMICS OF STANDARDIZED CPUE FOR KRILL FISHERY IN THE AREA 48
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 ... aggregated haul-by-haul data are shown. The trends of CPUE spatial-temporal variability and the factors ...
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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Mercury concentrations of five species of Antarctic fish collected from CCAMLR Subareas 88.1 and 88.2
slightly lower than the permissible level of 0.5 mg/kg-1 set by the New Zealand Food Safety Authority ... (NZFSA). In contrast, mean levels of mercury for D. mawsoni were 0.10 mg/kg-1 in the 1998 samples and ... 0.16 mg/kg-1 in the 2006 samples, both of which are well below the permissible level. Mercury levels ... whitsoni) being only slightly lower than D. eleginoides, whilst the levels of ice fish (Chionobathyscus ...
Meeting Document : WG-FSA-07/24 : Author(s): S.M. Hanchet, D.M. Tracey, A. Dunn, P.L. Horn and N. Smith (New Zealand)
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Assessment of the status of the toothfish stock in Subarea 48.3
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 ... likely current exploitable biomass of toothfish in Subarea 48.3 is between 45,000 and 62,000 t. GYM was ...
Meeting Document : WG-FSA-04/82 : Author(s): D.J. Agnew and G.P. Kirkwood (United Kingdom)