Résultats de la recherche
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ANALYSIS OF ROSS SEA TAGGING AND RECAPTURE RATES
year and recapture year for tags released and recaptured in the same SSRUs on the slope of 88.1 was ... (caught), all in numbers. 2. The overall size of the dataset was 734 combinations of release year ... , for inclusion in the Ross Sea stock assessment. Author(s): D.J. Agnew (UK) Title: ANALYSIS OF ROSS ... has not been consistent enough between nations to allow the analysis to be definitive. In many cases ...
Meeting Document : WG-SAM-08/07 : Auteur(s): D.J. Agnew (UK)
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Independent reviews of CCAMLR stock assessments – a discussion paper
on this topic and supporting the Scientific Committee in their development of a procedure ... Abstract: In 2013 the Commission endorsed the Scientific Committee’s recommendation to develop a ... the Commission could complement the efforts of the Scientific Committee by noting the need for action ... . Independent reviews, in addition to potentially benefitting the CCAMLR stock assessment process, could serve ...
Meeting Document : SC-CAMLR-XXXV/BG/20 : Auteur(s): Delegation of the USA
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Annual report of global toothfish trade data
the forms with mean unit values of 22.30 US$/kg for imports and 18.85 US$/kg for exports. The data ... sources for the trade of toothfish products for the 2017 calendar year. The analysis has identified that ... identified the largest importer was the United States of America (USA), accounting for 54.01% of the global ... import market. The largest exporter was Mauritius accounting for 20.93% of global export market ...
Meeting Document : CCAMLR-XXXVII/BG/08 Rev. 1 : Auteur(s): CCAMLR Secretariat
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IMPROVEMENT OF KRILL FISHING NOTIFICATION ACCURACY THROUGH NOTIFICATION FEES
of the United States The Commission adopted notification procedures for krill fishing in 2005. These ... krill fishing for the coming season. However, grossly inaccurate estimations of krill catch provided in ... . In the course of discussions, it was noted that the Secretariat recoups its costs for processing ... valuable time is spent on analyses that are of limited use due to their inherent inaccuracies. The ...
Meeting Document : CCAMLR-XXIX/34 : Auteur(s): Delegation of the USA
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Further development of a krill fishery simulation model
Abstract: The model of the krill fishery presented in 1993 (wg-Krill-93/14) refined and applied ... catch. Closure of Livingston Island for the breeding period resulted in a 60% reduction in overlap with ... to account for variability in catch rates. The most successful management regime is found to be one ... the model predicts a 90% reduction in overlap with foraging predators, and a 15 to 20% reduction in ...
Meeting Document : WG-Joint-94/04 : Auteur(s): D.J. Agnew (Secretariat)
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Comparison of equal-area cylindrical and circular piston transducers
Abstract: Design of sondes for in situ measurement of zooplankton or other scatterers requires ... choosing among alternative transducer geometries. This contribution addresses the problem of choosing ... between cylindrical and circular piston transducers by comparing the performance of the two according to ... dimensions of six fabricated cylindrical transducers, whose beam patterns have been measured by the ...
Meeting Document : WG-EMM-95/08 : Auteur(s): Foote, K.G.
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Trade data analysis – Reconciliation of CDS data with fine-scale catch and effort data
demonstrated the effectiveness of the CDS to trace the catch of toothfish caught in the CCAMLR Convention Area ... implemented in the reconciliation of trade data and other relevant CCAMLR datasets. Author(s): CCAMLR ... Abstract: The reconciliation of CDS data with monthly fine-scale catch and effort data has ... ongoing. This reconciliation has demonstrated the success in the methodology and will in the future be ...
Meeting Document : CCAMLR-XXXVII/BG/14 Rev. 1 : Auteur(s): CCAMLR Secretariat
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Antarctic fur seal population dynamics update and assessment of census error at SSSI No. 32, Livingston Island, South Shetlands, Antarctica (2000/2001)
of Antarctic fur seals, Arctocephalus gazella, in the South Shetland Archipelago. Since all censuses ... was developed for assessing uncertainties in the estimates of the counts (inter and intra-observer ... undertaking regional surveys of land-based predators in the future. Censuses developed at the SSSI have proved ... -1,74%CV, while inter-observer error was within 3% of the overall mean. The relationship between census ...
Meeting Document : WG-EMM-01/49 : Auteur(s): R. Hucke-Gaete (Chile)
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Density and biomass of Antarctic krill around South Shetland Islands using by 2-dB difference method
the west of the South Shetland Islands. The mean length/height ratio of krill aggregations in the west ... aggregations in the Elephant Island peripheries and south of South Shetland Islands were higher than those in ... of the South Shetland Islands (64.5) was higher than that in the south (35.9) and the Elephant Island ... Antarctic krill (4.9 to 12.0 dB) and fish (-4.0 to-0.2 dB). The distributions and mean Sv of krill ...
Meeting Document : SG-ASAM-17/04 : Auteur(s): S.-G. Choi, K. Lee and D. An
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A distribution-free model of length-frequency distribution to inform fishery stratification for integrated assessments
significantly influence the LFD helps in evaluating how to account for important differences in availability and ... /or gear specific selectivity. A distribution-free model of LFD is described which is fitted to the ... set of length quantiles L for a predetermined set of corresponding probabilities P (in this instance ... 0.05, 0.1 to 0.9 in 0.1 increments, and 0.95), constructed from individual length measurements of ...
Meeting Document : WG-SAM-13/18 : Auteur(s): S. Candy, P. Ziegler and D. Welsford (Australia)