Search results
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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 ... a simple von-Bertalanffy equation in which variance in catch-at-length for a given age is proportional ... to the mean length at that age. The model makes provision for IUU catches, insofar as this is possible given ... of toothfish catch, CPUE, size structure and mark-recapture data from SSRUs 486A and 486G, with comments ...
Meeting Document : WG-FSA-12/31 : Author(s): 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 ... The reconciliation of CDS data with monthly fine-scale catch and effort data has demonstrated ...
Meeting Document : CCAMLR-XXXVII/BG/14 Rev. 1 : Author(s): CCAMLR Secretariat
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Review of skate (Rajiformes) by-catch in CCAMLR toothfish fisheries
Abstract: Available data on the by-catch of Rajiformes was extracted from the CCAMLR database ... . These records included commercial catch data as well as observer data. Spatial distribution and biological data ... in the SISO. Author(s): Secretariat Title: Review of skate (Rajiformes) by-catch in CCAMLR toothfish ... Available data on the by-catch of Rajiformes was extracted from the CCAMLR database. These records ...
Meeting Document : WG-FSA-14/12 : Author(s): Secretariat
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Extending the time series of catch-weighted length frequencies
Abstract: The standard procedure used to extract catch-weighted length frequencies can only make ... from 1993/94 because of a mismatch in Flag State which presently occurs between the length and catch ... extended the existing time series of catch-weighted length frequencies for D. eleginoides in Subarea 48.3 ... Millar Title: Extending the time series of catch-weighted length frequencies Approval: Approved ...
Meeting Document : WG-FSA-SAM-06/04 : Author(s): David Ramm & Lydia Millar
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Biology, distribution and abundance of Antarctic krill (Euphausia superba) and by-catch
both the sex followed by stage V (spawned), indicating spawning period. Of the total catch of 12.470 ... tomes recorded, krill constituted 45.6% and the by-catch 54.4%. The by-catch included salps 54 ... ) and by-catch Approval: Approved ... ), indicating spawning period. Of the total catch of 12.470 tomes recorded, krill constituted 45.6 ...
Meeting Document : WG-EMM-98/37 : Author(s): A. Anrose, Z. Klusek, M.K.R. Nair and M. R. Bhoopendranath (India)
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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
and results achieved. The assessment also reports the actions taken since 2002 to reduce the incidental catch ... of sea birds in the area. In addition to the sharp decrease in incidental catch of seabirds in the French ... : Assessment of the Action Plan aimed at reducing incidental catch of seabirds in the French EEZ included ... and results achieved. The assessment also reports the actions taken since 2002 to reduce the incidental catch ...
Meeting Document : WG-IMAF-11/10 Rev. 1 : Author(s): C. Marteau (France)
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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-recapture data ... 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 population. Compared to the BODE ... to achieve their target catch for the year, the CCODE model is the more realistic. In simulation studies ...
Meeting Document : WG-SAM-10/11 Rev. 1 : Author(s): S.G. Candy (Australia)
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Estimation of natural mortality for the Patagonian toothfish at Heard and McDonald Islands using catch-at-age and aged mark-recapture data from the main trawl ground
. An alternative strategy was adopted whereby the catch-at-age and mark-recapture data were restricted to the main ... trawl ground in which the longest time series of catches and the great majority of releases ... and recaptures of tagged fish were available. Catch and releases by age class for this fishery were obtained ... model (Baranov ODE) and the CCODE model (constant catch ODE). Previous studies of the properties ...
Meeting Document : WG-FSA-10/41 : Author(s): S. Candy, D. Welsford, T. Lamb, J. Verdouw and J. Hutchins (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 ... to 8 families were identified in the by-catch samples, among which the 3 species, Krefftichthys anderssoni ... , K. Taki and M. Kiyota (Japan) Title: ANNUAL CHANGES IN SPECIES COMPOSITION AND ABUNDANCE OF BY-CATCH FISH ...
Meeting Document : WG-EMM-11/40 : Author(s): 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
of 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 ... understand the effect of these measures, and their effect upon the catch rate of target and non-target ... variables and mitigation measures on seabird catch rates in the Japanese tuna longline fishery within ...
Meeting Document : WG-FSA-98/32 : Author(s): N. Brothers, R. Gales and T. Reid (Australia)