Resultados de la búsqueda
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Preliminary analysis of toothfish catch, CPUE, size structure and mark-recapture data from SSRUs 486A and 486G, with comments on the sustainability of different harvest levels
Abstract: Available catch, effort, catch-at-size and tagging data for Statistical Subarea 48.6 ... to size via a simple von-Bertalanffy equation in which variance in catch-at-length for a given age is ... : Preliminary analysis of toothfish catch, CPUE, size structure and mark-recapture data from SSRUs 486A and 486G ...
Meeting Document : WG-FSA-12/31 : Autor(es): E. Thomson and M. Bergh (South Africa)
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Trade data analysis – Reconciliation of CDS data with fine-scale catch and effort data
Abstract: The reconciliation of CDS data with monthly fine-scale catch and effort data has ... demonstrated the effectiveness of the CDS to trace the catch of toothfish caught in the CCAMLR Convention Area ... Secretariat Title: Trade data analysis – Reconciliation of CDS data with fine-scale catch and effort data ...
Meeting Document : CCAMLR-XXXVII/BG/14 Rev. 1 : Autor(es): CCAMLR Secretariat
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Biology, distribution and abundance of Antarctic krill (Euphausia superba) and by-catch
catch of 12.470 tomes recorded, krill constituted 45.6% and the by-catch 54.4%. The by-catch included ... Antarctic krill (Euphausia superba) and by-catch Approval: Approved ...
Meeting Document : WG-EMM-98/37 : Autor(es): A. Anrose, Z. Klusek, M.K.R. Nair and M. R. Bhoopendranath (India)
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AN ASSESSMENT OF ARTIFICIAL BAIT (NORBAIT™) AS A MEANS OF REDUCING THE INCIDENTAL CATCH OF MACROURUS AND OTHER BYCATCH SPECIES IN HIGH LATITUDE TOOTHFISH FISHERIES
assess the effectiveness of artificial bait as a means of reducing the incidental catch of Macrouridae ... (defined here as a measure of a baited hook to attract and catch a given species of fish) of target and ... overall virtually identical reduction in the target catch of Patagonian toothfish negated any benefit ... catch result. Other than the obvious geographical differences between the two trial Subareas there were ...
Meeting Document : WG-FSA-08/52 : Autor(es): J.M. Fenaughty (New Zealand)
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Estimation of natural mortality using catch-at-age and aged mark-recapture data: a simulation study comparing estimation for a model based on the Baranov equations versus a new mortality equation
. An alternative estimation strategy was tested using simulation whereby catch-at-age and aged mark ... . The model based on a new mortality equation (CCODE model) uses an ODE with constant within-year catch ... per unit time for each age class, and as a result allows catch to be removed directly from the ... increase their effort if required to achieve their target catch for the year, the CCODE model is the more ...
Meeting Document : WG-SAM-10/11 Rev. 1 : Autor(es): S.G. Candy (Australia)
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ANNUAL CHANGES IN SPECIES COMPOSITION AND ABUNDANCE OF BY-CATCH FISH COLLECTED BY JAPANESE KRILL SCIENTIFIC OBSERVERS IN THE NORTH OF SOUTH GEORGIA (CCAMLR SUBAREA 48.3), DURING AUSTRAL WINTER FROM 2002 TO 2008
Abstract: Species composition and abundance of by-catch fish were analyzed using the fish by ... -catch samples collected by scientific observers onboard Japanese commercial krill fishing vessels in the ... families were identified in the by-catch samples, among which the 3 species, Krefftichthys anderssoni ... COMPOSITION AND ABUNDANCE OF BY-CATCH FISH COLLECTED BY JAPANESE KRILL SCIENTIFIC OBSERVERS IN THE NORTH OF ...
Meeting Document : WG-EMM-11/40 : Autor(es): T. Iwami, K. Taki and M. Kiyota (Japan)
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The influence of environmental variables and mitigation measures on seabird catch rates in the Japanese tuna longline fishery within the Australian Fishing Zone, 1991–1995
environmental variables and mitigation measures upon catch rates of seabirds in the Japanese pelagic longline ... , interpretation of changes in catch rates resulting from the use of mitigation measures or from weather effects ... required to better understand the effect of these measures, and their effect upon the catch rate of target ... influence of environmental variables and mitigation measures on seabird catch rates in the Japanese tuna ...
Meeting Document : WG-FSA-98/32 : Autor(es): N. Brothers, R. Gales and T. Reid (Australia)
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Assessment of the Action Plan aimed at reducing incidental catch of seabirds in the French EEZ included in the CCAMLR Division 58.5.1 and Subarea 58.6
incidental catch of sea birds in the area. In addition to the sharp decrease in incidental catch of seabirds ... . Marteau (France) Title: Assessment of the Action Plan aimed at reducing incidental catch of seabirds in ...
Meeting Document : WG-IMAF-11/10 Rev. 1 : Autor(es): C. Marteau (France)
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Variants of the ASPM assessment of the toothfish (Dissostichus eleginoides) resource in the Prince Edward Islands vicinity which attempt to reconcile CPUE and catch-at-length data
highly sensitive to the relative weights given to CPUE and catch-at-length data in the model fitting ... discrepancy between the implications of the CPUE and the catch-at-length data regarding the current status of ... to reconcile CPUE and catch-at-length data Approval: Approved ...
Meeting Document : WG-FSA-SAM-04/12 : Autor(es): Brandão, A., Butterworth, D.S.
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COMPARISON OF THE PRECISION OF DIRECT VERSUS AGE LENGTH KEY METHODS OF ESTIMATING CATCH-AT-AGE PROPORTIONS
Abstract: Catch-at-age proportions can be estimated directly using a simple random sample (SRS ... ) of fish in the catch, determining the ages in the sample, and calculating proportions in each age ... for most of the age classes that dominate the catch but is significantly superior for the less well ... younger age classes in terms of the accuracy of integrated assessments that employ catch-at-age ...
Meeting Document : WG-FSA-09/22 Rev. 1 : Autor(es): S.G. Candy (Australia)