Resultados de la búsqueda
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Method for rapidly assessing spatial scale of interactions of fishing gear with habitats and Antarctic marine living resources
overall process for reporting on interactions of fishing with ecological features, (ii) an automated ... process for determining boundaries of independent patches of each class of an ecological feature, (iii) a ... the potential impacts on dependent and related species for proposed exploratory fisheries and ... requested working groups consider how to report on these issues, which also form part of the review ...
Meeting Document : WG-FSA-15/62 Rev. 1 : Autor(es): A. Constable, M. Sumner, J. Melbourne-Thomas and D. Welsford (Australia)
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Research plan for toothfish in Divisions 58.4.4a and 58.4.4b by Shinsei Maru No. 3 in 2010/11
Maru No. 3 to be conducted in April-June 2011. This is the second year of the survey of the 3-5 years ... . In Division 58.4.4 a & b, we submit this research plan for toothfish in the Division by Shinsei ... first survey conducted in 2009/10 season, when total sample size for Dissostichus spp. Was allowed as ... 60,000 kg. The research hauls are allocated on 10-minute latitude x 20-minute longitude grid points ...
Meeting Document : WG-SAM-10/15 : Autor(es): Delegation of Japan
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Temporal scales of foraging in a marine predator: implications for interpreting the distribution of prey
the surface, the time taken for a fur seal to locate a new patch after leaving an old one is an ... km) represented by short (5 rain) travel durations. In a study lasting 5 years, the distributions of ... travel durations between bouts of feeding changed between years. These changes suggested either that the ... structure and/or the spatial distribution of krill swarms varied between years. The behavior of fur seals ...
Meeting Document : WG-EMM-95/23 : Autor(es): Boyd, I.L.
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Consumption estimates for male Antarctic fur seals at the South Orkney Islands during the post mating migration
South Georgia. Using a combination of published and BAS data we highlight the potential importance of ... consumption of approximately 86,500 tonnes. This is very likely an underestimate as it is based on a census of ... for the need of male fur seals to recover condition during this time after fasting during the mating ... Title: Consumption estimates for male Antarctic fur seals at the South Orkney Islands during the post ...
Meeting Document : WG-EMM-18/10 : Autor(es): I. Staniland and S. Hill
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Revision of biological and population parameters for Dissostichus eleginoides on the Heard Island Plateau (Division 58.5.2) based on a comprehensive survey of fishing grounds and recruitment areas in the region
originally estimated and that, in recent years, there has been an influx of a large number of young fish ... the identification of Ground B as the most important area for 7 to 8 year old fish in the Heard Island ... and information from an observer program on the commercial fishery begun in 1997, this paper aims (i ... ) to provide an assessment of biomass and stock structure in the vicinity of Heard, (ii) to examine the ...
Meeting Document : WG-FSA-99/68 : Autor(es): A.J. Constable, R. Williams, T. Lamb and E. van Wijk (Australia)
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Development of methods relevant to feedback management (FBM) for the krill fishery
Abstract: The primary objective for this project is to develop knowledge on the marine ... environment essential for the implementation of a Feed-Back Management (FBM) system. In terms of FBM, Marine ... . Thus, data supporting FBM as an integral part of the broader management strategies of the krill ... fisheries within Domain 1 are critical if the fishery is to be managed by an empirical understanding of ...
Meeting Document : WG-EMM-18/08 : Autor(es): B.A. Krafft, A. Lowther, G. Macaulay, M. Chierici, M. Biuw, A. Renner, T.A. Klevjer, R. Øyerhamn, C.A. Cárdenas, J. Arata, A. Makhado, C. Reiss and O.A. Bergstad
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Precautionary, ecosystem-based management for the Antarctic krill fishery: a work in progress
plan and timeline to further develop ecosystem-based management measures for the fishery. Review the ... improving identification of bycatch and for minimizing bycatch. Develop an accurate and consistent method ... provides an update on the krill fishery; discusses the consideration of climate change in krill fisheries ... information into fishery management. Obtain an up to date krill biomass estimate. Agree to a detailed work ...
Meeting Document : SC-CAMLR-XXXVII/BG/17 : Autor(es): Submitted by ASOC
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Alternative assessment methods for toothfish at South Georgia
toothfish abundance. An age structured production model (ASPM) is constructed and tuned to the CPUE series ... Abstract: We examine two alternatives to the survey recruitment/GY method for estimating ... CPUE that actually has been seen since 1996. Fitting the model to partial CPUE series, or assuming an ... : Alternative assessment methods for toothfish at South Georgia Approval: Approved ...
Meeting Document : WG-FSA-SAM-04/17 : Autor(es): Kirkwood, G., Payne, A., Agnew, D.
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Update of the Antarctic toothfish stock assessment for the Ross Sea by means of the TSVPA separable cohort model
Abstract: An updated Antarctic toothfish (in the Ross Sea) stock assessment was done by means of ... the TISVPA model (2006 data on catch-at-age and cpue and the data on tag recaptures were included ... Antarctic toothfish stock assessment for the Ross Sea by means of the TSVPA separable cohort model Approval ... to the Constable & de la Mare (1996) decision rules, annual catches of 23 000 tonnes per year are ...
Meeting Document : WG-SAM-07/9 : Autor(es): D. Vasilyev, K. Shust, V. Babayan and T. Bulgakova (Russia)
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Fish Heaven: a Monte Carlo, spatially explicit single species fishery model for the testing of parameter estimation methods
Abstract: Fish Heaven is a simple spatially explicit age structured fish model, containing the ... basic features of standard fish modeling with a number of optional extras. It was designed within an ... object oriented framework to allow for the possible extension in a number of directions. In particular it ... various plausible spatial structures of fish stock. The model has a simple age and space structured ...
Meeting Document : WG-FSA-00/36 : Autor(es): I. Ball and A. Constable (Australia)