Resultados de la búsqueda
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On the catchability of bottom trawl in relation to icefish (C. gunnari)
have been used when icefish bottom surveying. An analysis of total catchability and a differential one ... been demonstrated that the bottom trawl was not a measuring system. There have been discussed matters ... of improving trawl survey methodology related to the bottom trawl application as a measuring system ...
Meeting Document : WG-FSA-SAM-04/11 : Autor(es): Kasatkina, S.M., Ivanova, V.F.
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Managing fishing vessels
the management of fishing vessels operating in the Southern Ocean. It identifies that currently a ... vessels resulting in an ad hoc patchwork of regulation. The paper identifies a new opportunity for review ... , amendment, improvement and consolidation of the existing framework through the development of a mandatory ...
Meeting Document : CCAMLR-XXIX/BG/22 : Autor(es): ASOC Observer
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Spatial Population Model User Manual, SPM v1.1-2012-09-06 (rev. 4806)
Abstract: SPM (Spatial Population Model) is a generalised spatially explicit age-structured ... -structured population using a range of observations, including tagging, relative abundance, and age frequency ... interpret output. Author(s): A. Dunn, S. Rasmussen and S. Mormede (New Zealand) Title: Spatial Population ...
Meeting Document : WG-FSA-12/46 : Autor(es): A. Dunn, S. Rasmussen and S. Mormede (New Zealand)
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Measurement of capacity in CCAMLR exploratory fisheries in Subareas 88.1 and 88.2: Secretariat update 2015
and do not indicate an excess capacity in the fishery. A measure of potential daily fishing capacity ... as a function of the catch limit for an area indicates that for some management areas the notified ... fishing capacity is in excess of the level that would allow the Secretariat to forecast and issue a ...
Meeting Document : WG-FSA-15/09 : Autor(es): CCAMLR Secretariat
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Supporting industry sustainability and CCAMLR monitoring with Sailbuoy operations
variability at a location (future comparison with mooring data when available) and surveying predator prey ... -fields. Perspectives and plans for the development of a “Sailbuoy for krill” including advanced on board ... . Godø and A. Lowther Title: Supporting industry sustainability and CCAMLR monitoring with Sailbuoy ...
Meeting Document : WG-EMM-2019/17 : Autor(es): R. Øyerhamn, O.R. Godø and A. Lowther
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Supervised and unsupervised (RapidKrill) estimates of krill density from DY098
up with a similar estimate of krill NASC and krill density as the supervised method. An ... produces a krill density of 8.60 gm-2, compared with 21.76 gm-2 (supervised) or 20.41 gm-2 (unsupervised ... ). Author(s): A. Ariza, S. Fielding and R. Blackwell Title: Supervised and unsupervised (RapidKrill ...
Meeting Document : SG-ASAM-2019/09 : Autor(es): A. Ariza, S. Fielding and R. Blackwell
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Preliminary assessment of the South Georgia ray populations
Abstract: We modelled the ray population at South Georgia using a surplus production model ... implemented in a Bayesian framework. Catch and CPUE data were reconstructed for the time series 1985 – 2006 ... from a variety of sources, and included the consideration that since 2004 the practice of cutting rays ... capacity but not with respect to r, the intrinsic rate of growth of the ray population. We chose a ...
Meeting Document : WG-SAM-07/11 : Autor(es): D.J. Agnew, R. Mitchell, T. Carruthers, J. Roberts, R. Hillary and J. Pearce (United Kingdom)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
in a slightly higher estimate of initial biomass than in 2005, though this was mostly due to a ... estimated to be 352 t for the reference case and 366 t for the all vessels case, assuming a future fishing ... selectivity equal to the maturity ogive. Author(s): A. Dunn and S.M. Hanchet (New Zealand) Title: Assessment ...
Meeting Document : WG-FSA-06/48 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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An updated descriptive analysis of the toothfish (Dissostichus spp.) tagging programme in Subareas 88.1 and 88.2 up to 2005/06
Abstract: A descriptive analysis of the toothfish tagging programme carried out in Subareas 88.1 ... still only available for about half of the non-New Zealand vessels for 2003-04. A reported total of 10 ... . About 17% of the recaptures could not be matched to a release observation, mainly because of missing ... fish in the Ross Sea was very close to the size composition of the catch. Author(s): A. Dunn and S.M ...
Meeting Document : WG-FSA-06/34 : Autor(es): A. Dunn and S.M. Hanchet (New Zealand)
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Approaches to monitoring and assessing the abundance of rattails (Macrourus spp.) and skates in the Ross Sea
Abstract: This report presents results from a desktop study to consider approaches to monitoring ... , and acoustic surveys. We recommend that a random bottom trawl survey would be the best approach ... range 600–1500 m to obtain a precise estimate of bycatch abundance in the area of highest densities ... (SSRUs 881E, G, H, I, J, and K). A trawl survey could also be used in conjunction with other methods of ...
Meeting Document : WG-FSA-05/22 : Autor(es): R.L. O’Driscoll, S.M. Hanchet and B.A. Wood (New Zealand)