Resultados de la búsqueda
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An integrated assessment model for Antarctic krill: progress update
extrapolated from net densities than when biomass was calculated from acoustics. This was reflected in lower ... model estimates of total population abundance for most years and areas when the input data were based on ... net biomass densities in either TrawlCI or the integrated model than when acoustic measures of biomass ... ages in the population. Thus the integrated model estimated two population sizes, the "vulnerable ...
Meeting Document : WG-EMM-12/27 : Autor(es): D. Kinzey, G. Watters and C. Reiss (USA)
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Extending ecological monitoring to underpin the development of feedback management approaches for the Antarctic krill fishery
in areas where no existing monitoring, including CEMP monitoring, is present. Here we consider some ... each. We propose that CCAMLR consider the merits of different approaches over the next two years, so ...
Meeting Document : WG-EMM-12/04 : Autor(es): P.N. Trathan (UK), H.J. Lynch (USA), C. Southwell (Australia), P.T. Fretwell (UK), G. Watters (USA) and N. Ratcliffe (UK)
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Synopsis of data from satellite telemetry of foraging trips and migration routes of penguins and pinnipeds from the South Shetland Islands, 1997/98 to present
GPS positions estimates, to inform spatial planning efforts in the Antarctic Peninsula and Scotia Sea ... gentoo penguins, and Antarctic fur, Weddell, and leopard seals. The data from 14 years of tracking are ...
Meeting Document : WG-EMM-12/37 : Autor(es): J. Hinke, G. Watters, W. Trivelpiece and M. Goebel (USA)
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Cooperación con otras organizaciones: acuerdos con organizaciones internacionales
Commission decision to renew these two Arrangements (CCSBT, SPRFMO) for a further 3 years. The Secretariat ... seeks the endorsement of the Scientific Committee, SCIC and the Commission in respect of activities to ...
Meeting Document : CCAMLR-XXXVII/10 : Autor(es): CCAMLR Secretariat
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Defining predator foraging ranges, illustrated using Adélie penguin foraging tracks from Mawson coast
taking into account interannual variation in foraging locations? This paper considers the issues to be ... addressed in answering that question. The proposed method for defining foraging ranges is based on an ... effort and this is used to delineate a feeding ground for Adélie penguins on the Mawson coast in eastern ... colonies, years, and species to define individual species and pooled foraging ranges. The establishment of ...
Meeting Document : WG-EMM-02/41 : Autor(es): I.R. Ball, A.J. Constable, J. Clarke and L. Emmerson (Australia)
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Predation on fish by the southern elephant seal, Mirounga leonina, at King George Island, South Shetland Islands, as reflected by stomach lavage
Abstract: Between november and february of the years 1993/94, 1995/96, 1996/97, 1997/98, 1998/99 ... , were stomach lavaged at King George Island in order to analyse their diet. The two major prey types ... were cephalopods and fish which ocurred respectively in 98,1% and 14% of stomachs containing prey ... nicholsi which constituted in number 69% of the otoliths found. This species was followed by the ...
Meeting Document : WG-EMM-01/58 : Autor(es): G.A. Daneri and A.R. Carlini (Argentina)
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Age-structured production model for toothfish at South Georgia
was fitted for all years, the change to the new selectivity function improved the fit to length ... , by allowing all parameters to be estimated in this way the model is over-parameterised and regularly ... high weight in the fitting, then the model has sufficient flexibility to change the selectivity to fit ... frequency data achieved last year, but the fit was still poor. The fit to the CPUE was also poor. With ...
Meeting Document : WG-FSA-SAM-05/18 : Autor(es): A. Payne, G.P. Kirkwood, R. Hillary and D.J. Agnew (United Kingdom)
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A simulation approach to the evaluation of recruitment surveys for D. eleginoides for the Heard Island Plateau region (Division 58.5.2)
the design is carried out in a simulation environment using the program Fish Heaven with data analysis ... . For a series of 10 years of survey, age 4 recruitment was estimated using 111 RSTS stations, assuming ... the age of every fish caught in the surveys is known without error and assuming knife-edge fishing ...
Meeting Document : WG-FSA-04/74 : Autor(es): S.G. Candy, C.R. Davies and A.J. Constable (Australia)
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Preliminary assessment of the South Georgia toothfish stock, 2007
estimates year class strength which corresponds, in some years, with estimates made from the South Georgia ... ) estimating a length-based ogive for tag-induced mortality, based on our 2005 survivorship experiment, in ... precaution previously included in assessments. We would recommend that only small changes to the current TAC ... higher than was estimated last year. 2. Improvements are made to the fit of tag data through (a ...
Meeting Document : WG-FSA-07/29 : Autor(es): D.J. Agnew, R. Hillary and J. Pearce (United Kingdom)
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Development of the VME registry
would be required in subsequent years to maintain the registry and implement transition to future ... associated features. In this proposal, summary information on VMEs and VME risk areas and fine-scale ... budget implications will be forwarded to the Scientific Commission and Commission for consideration in ...
Meeting Document : WG-FSA-10/07 : Autor(es): Secretariat