Resultados de la búsqueda
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A meta-analysis of by-catch in the Ross Sea toothfish fishery
fish as a proportion of the total number of fish caught), using haul by haul data from the Ross Sea ... toothfish fishery from 2008 – 2014, was used as a single metric to examine the amount of bycatch reported by ... ) in the index from two groups of Members flagged vessels, that together contribute 84% of the haul by ... haul data. These differences do not appear to be explained by differences in gear or location and are ...
Meeting Document : WG-FSA-15/04 Rev. 1 : Autor(es): CCAMLR Secretariat
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Proposals of the Russian Federation on by-catch reporting in the longline toothfish fishery in the CCAMLR Convention Area
Abstract: Some methods used by observers to record by-catch data in the longline toothfish ... fishery are discussed. Proposals on implementation of a uniform process reporting accurate by-catch data ... : Proposals of the Russian Federation on by-catch reporting in the longline toothfish fishery in the CCAMLR ...
Meeting Document : WG-SAM-16/24 : Autor(es): Delegation of the Russian Federation
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Spatial distribution of foraging by female Antarctic fur seals
by female Antarctic fur seals breeding at the island of South Georgia was influenced by physical ... gradients in the oceans and also by the need to avoid local competition for food. It also tested the ... support of dependent offspring, fur seals travelled down physical gradients defined by the bathymetric ... by lactating female fur seals predicted spatial distributions that were consistent with past ...
Meeting Document : WG-EMM-01/26 : Autor(es): I.L. Boyd, I.J. Staniland and A.R. Martin (United Kingdom)
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A review on the Antarctic ecosystem models published by Japanese scientists and some comments
by Japanese scientists were reviewed. The concept and treatment of Lotka-Volterra type model by ... model such as developed by Doi(1879) is able to deal with many component in the Antarctic ecosystem ... Title: A review on the Antarctic ecosystem models published by Japanese scientists and some comments ...
Meeting Document : SC-CAMLR-III/INF. 06 : Autor(es): Japanese Delegation
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Estimating the impact of depredation by killer whales and sperm whales on longline fishing for toothfish (Dissostichus eleginoides) around South Georgia
the levels of depredation caused by killer whales (Orcinus orca) and sperm whales (Physeter ... line of a large number of toothfish, usually depressing CPUE by about 50%. Sperm whales occur in ... , depressing CPUE by up to 20%. Sperm whales have been more frequently encountered in recent years, occurring ... throughout the season that is not related to the pattern of fishing effort. By comparing catch rates with and ...
Meeting Document : WG-FSA-10/P06 : Autor(es): J. Moir Clark and D.J. Agnew
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Analysis of variability of krill size and fish by-catch in Japanese krill fishery based on scientific observer data
sample size by using variance component analysis. Observer datasets on Japanese krill fishery from 1995 ... –2008 were analysed by using a hierarchical Bayesian model. The models were composed of multistage ... length and bycatch fish number, the parameters estimated by MCMC hardly show difference among years, sub ... datasets were calculated by the multistage sampling formula with the variance terms derived from the ...
Meeting Document : WG-EMM-12/68 : Autor(es): T. Okuda and M. Kiyota (Japan)
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An initial analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals during the winters of 2002 and 2003 at South Georgia
seals. There were significant differences in the mean size of krill taken by vessels/measured by ... during winter. It may be appropriate to review the number of krill measured by observers in order to ... ensure that other sufficient time can be allocated to other activities, especially the assessment of by ... analysis of the characteristics of Antarctic krill taken by the commercial fishery and Antarctic fur seals ...
Meeting Document : WG-EMM-04/62 : Autor(es): K. Reid, D.J. Agnew, N.L. Warren and E. Owen (United Kingdom)
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An investigation of avoidance by Antarctic krill of RRS James Clark Ross using the Autosub-2 autonomous underwater vehicle
of the research vessel by Antarctic krill Euphausia superba. The AUV was equipped with the same type ... between the amount of krill detected by the ship or the AUV, either at the transect level or at finer ... scales within transects. We conclude, therefore, that avoidance by krill of RRS James Clark Ross will not ... significantly bias krill abundance estimates by this vessel. Author(s): A.S. Brierley, P.G. Fernandes, M.A ...
Meeting Document : WG-EMM-01/14 : Autor(es): A.S. Brierley, P.G. Fernandes, M.A. Brandon, E. Armstrong, D.G. Bone and the Autosub Team (United Kingdom)
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AND DOMESTIC SUBANTARCTIC FISHERIES BY THE AUSTRALIAN ANTARCTIC DIVISION AND THE AUSTRALIAN FISHERIES MANAGEMENT AUTHORITY
Abstract: Australia’s sub-Antarctic and Antarctic fisheries observer program is administered by ... targeting finfish in the CCAMLR area. As the assessments and conservation measures employed by CCAMLR ... increase in sophistication, the tasks required to be completed by observers are increasing in number and ... quality data continues to be collected by SISO. Author(s): O’Regan, K., Welsford, D., Robertson, T., Lamb ...
Meeting Document : TASO-08/05 : Autor(es): O’Regan, K., Welsford, D., Robertson, T., Lamb, T.
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Finfish research proposals for Subarea 48.6 by Koryo Maru 11 for 2012/13 (this is a revision of WG-SAM-12/12)
Abstract: This paper presents a revised plan for research fishing by the Koryo Maru 11 for the ... conducted by OLRAC-SPS (2012) – tabled at WG-FSA-12 as a separate paper. The research plan presented here ... draws on the results presented by OLRAC-SPS (2012) and addresses knowledge gaps highlighted by that ... Subarea 48.6 by Koryo Maru 11 for 2012/13 (this is a revision of WG-SAM-12/12) Approval: Approved ...
Meeting Document : WG-FSA-12/30 : Autor(es): C. Heiniken and R. Ball (South Africa)