Resultados de la búsqueda

1. Estimating fishing gear selectivity for trawlers using length-frequency data from concurrent commercial trawl and longline fishing for Patagonian toothfish in Division 58.5.2 and the ratio of their hazard functions

   Abstract:  The upper-arm of the length-dependent fishing selectivity function for trawlers fishing for Patagonian toothfish around Heard Island (Division 58.5.2) was modelled as the exponential of a quadratic function in length. This function was calibrated using random length frequency (LF) data

   Meeting Document : WG-FSA-06/35 : Autor(es): S.G. Candy (Australia)

2. Assessment of toothfish in Subarea 48.3, 2006

   Abstract:  1. As requested by SAM-2006, we provide a reference assessment for toothfish in Subarea 48.3. We provide sensitivity runs that include revised maturity and catch weighted proportion at length data. We additionally provide a sensitivity run which examines uncertainty in IUU catches from

   Meeting Document : WG-FSA-06/53 : Autor(es): D.J. Agnew, R. Hillary, M. Belchier, J. Clark and J. Pearce (United Kingdom)

3. Estimates of natural and fishing mortality from toothfish mark–recapture and catch-at-age data at South Georgia

   Abstract:  This paper presents new results and estimation bias analyses for a Bayesian mark-recapture model, applied to the South Georgia toothfish tagging data. The updated model incorporates the data from all the analysed cohorts in the estimation routine, and we examine the potential estimation

   Meeting Document : WG-FSA-06/54 : Autor(es): R.M. Hillary and D.J. Agnew (United Kingdom)

4. A proposal methodology to assess the Patagonian toothfish stock abundance at CCAMLR Subarea 48.3 using ASPM

   Abstract:  The ASPM is an integrated modeling technique used in stock assessment of different D. eleginoides fisheries (Prince Edward Islands and Patagonian Shelf) and allows fitting to many different information sources, such as catch and age and size data from fishing fleet, surveys and others

   Meeting Document : WG-FSA-06/59 : Autor(es): O.C. Wöhler and P.A. Martínez (Argentina)

5. Seabird warp-strike form

   Abstract:  Form used with protocol for observing warp strikes in trawl fisheries Author(s):  Ministry of Fisheries (New Zealand) Title:  Seabird warp-strike form Approval:  Approved

   Meeting Document : WG-FSA-06/61 : Autor(es): Ministry of Fisheries (New Zealand)

6. Comparison of census methods for black-browed albatrosses breeding at the Ildefonso Archipelago, Chile

   Abstract:  Although a breeding population of black-browed albatrosses has been known to exist at the Ildefonso Archipelago, Chile, for > 90 years the population has never been censused using scientifically defendable methods. To estimate population size, and examine the accuracy and practicality

   Meeting Document : WG-FSA-06/12 : Autor(es): G. Robertson, K. Lawton (Australia), C.A. Moreno (Chile), R. Kirkwood (Australia) and J. Valencia (Chile)

7. Saga Sea krill harvesting and production

   Abstract:  F/T Saga Sea is a Norwegian registered factory trawler owned by the Aker Seafoods Antarctic AS, and is licensed to fish krill in Area 48.1-4. Aker has developed a patented new environmental friendly continuous trawling system, named Aker Eco Harvesting System. The system is described in

   Meeting Document : WG-FSA-06/20 : Autor(es): T. Williksen (Norway)

8. Recommended changes to Conservation Measure 25-02 pertaining to the Spanish system of longline fishing

   Author(s):  G. Robertson (Australia) and C. Moreno (Chile) Title:  Recommended changes to Conservation Measure 25-02 pertaining to the Spanish system of longline fishing Approval:  Approved

   Meeting Document : WG-FSA-06/21 : Autor(es): G. Robertson (Australia) and C. Moreno (Chile)

9. Preliminary analyses of an ectoparasite Eubrachiella antarctica as a marker for stock discrimination of Antarctic toothfish in the Ross Sea

   Abstract:  This project evaluated the prevalence and intensity of an ectoparasite Eubrachiella antarctica as a marker for stock discrimination of Antarctic toothfish in the Ross Sea. New Zealand Ministry of Fisheries Observers on four toothfish longline vessels recorded the number of E. antarctica

   Meeting Document : WG-FSA-06/28 : Autor(es): P.J. Smith, A. McKenzie and L. Tubbs (New Zealand)

10. Review of biological parameters for Ross Sea skates

    Abstract:  Biological parameters were reviewed and updated for the two main species of skates taken as bycatch in the Ross Sea toothfish fishery: Amblyraja georgiana and Bathyraja cf. eatonii. Differences in length-weight relationships among regions raise doubt about the conspecificity of A.

    Meeting Document : WG-FSA-06/31 : Autor(es): M.P. Francis (New Zealand)

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