Resultados de la búsqueda
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A preliminary assessment of the stock of the ommastrephid squid Martialia hyadesi in the Scotia Sea based on data from predators
the Scotia Sea based on data from predators Abstract / Description: Cephalopod fisheries world-wide ... OF THE OMMASTREPHID SQUID MARTIALIA BY ADESI IN THE SCOTIA SEA BASED ON DATA FROM PREDATORS· P.G ... devrait a l'avenir faire l'objet d'un effort de recherche plus intensif. * This paper, in a revised form ...
Science Journal Paper : Selected Scientific Papers, SC-CAMLR-SSP/7 (Selected Scientific Papers, SC-CAMLR-SSP/7) : 479–480 : Autor(es): Rodhouse, P.G.
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DEVELOPMENT OF A METHODOLOGY FOR DATA QUALITY ASSESSMENT
biological sampling data from a fishing trip. In particular these measures aim to quantify the prevalence of ... position or time reporting errors, the diversity of catch, the extent to which catch data follow Benford ... 's Law for the distribution of the first significant digit, whether length-frequency data have been ... assist in assessing which data from a trip should be used in an assessment, and can also guide how these ...
Meeting Document : WG-SAM-08/13 : Autor(es): D.A.J. Middleton and A. Dunn (New Zealand)
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Investigation of the sensitivity of the Ross Sea toothfish assessment to withholding subsets of the available data
tag recapture data. Examining the impact of considering a subset of the available data simulates both ... time as more years’ data becomes available. The 2009 stock assessment of Antarctic toothfish in the ... Subarea 88.2E was used as a sensitivity to examine the impact of withholding data from an assessment based ... on a smaller and shorter data set. In both instances the ‘base case’ model was used, i.e., the models ...
Meeting Document : WG-SAM-11/17 : Autor(es): S. Mormede (New Zealand)
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Use of biological data to inform bioregionalisation of the Southern Ocean
spatially comprehensive species distribution layers from discontinuous biological data, by fitting complex ... and scale-dependent relationship between species abundance and available environmental data. These ... biological data without the need for environmental proxies. We describe one method, called BRT (Boosted ... aggregate data layers for pelagic zooplankton using a circumpolar dataset collected by Continuous Plankton ...
Meeting Document : WS-BSO-07/7 : Autor(es): M. Pinkerton, B. Sharp and J. Leathwick (New Zealand)
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DEVELOPING A ‘BEST AVAILABLE SCIENCE’ BATHYMETRIC DATA FRAMEWORK FOR FISHERIES MANAGEMENT IN THE ROSS SEA
available science” bathymetric data for the Ross Sea region along with a set of spatial tools in the form of ... Abstract: Bathymetric data are used inter alia to define management boundaries, implement ... -based management through bioregionalisation. Several data sources for bathymetric data exist, and these ... sources improve with time through additional data collection and analytical methods. In addition, the ...
Meeting Document : WG-FSA-09/38 : Autor(es): S.J. Parker, S.M. Hanchet, B. Wood and A. Dunn (New Zealand)
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Development of an algorithm designed to assess observer data quality and performance
Abstract: As part of the Secretariat task to ensure the quality and consistency of the data ... arising from the CCAMLR SISO, an algorithm was designed to automatically import and check data entered by ... fishery logbooks. In its current version the algorithm is able to detect and report invalid data formats ... weight of toothfish, and, an overall data entry quality score, are automatically generated. The first ...
Meeting Document : WG-SAM-13/40 : Autor(es): Secretariat
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A bathymetric data framework for conservation in the Ross Sea region
Abstract: Bathymetric data are currently used inter alia to define management boundaries ... inform ecosystem-based management through bioregionalisation. Several data sources for bathymetric data ... exist, and these sources improve with time through additional data collection and improved analytical ... methods. We developed an algorithm to summarize bathymetric point data (x,y,z) for the Ross Sea region to ...
Meeting Document : WG-SAM-10/18 : Autor(es): S.J. Parker, B. Wood, S.M. Hanchet and A. Dunn (New Zealand)
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2005/06 season
), using revised catch, CPUE, catch-at-age and tag-recapture data from New Zealand vessels. The updated ... entirely due to the impact of the catch-at-age data from the shelf fishery. Parameterising the model to ... better explain these data resulted in estimates of initial and current biomass that were very similar to ... those presented in 2005. The inclusion of the 2005 tag-release and the 2006 tag-recapture data had a ...
Meeting Document : WG-FSA-06/60 : Autor(es): A. Dunn and S.M Hanchet (New Zealand)
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Maximum entropy reconstruction of stock distribution and inference of stock density from line-transect acoustic survey data
distribution from acoustic line-transect data. MaxEnt is founded on the bedrock of probability theory and ... allows the most efficient possible use of known data in the inference process. The method takes explicit ... account of spatial correlation in the observed data and seeks to reconstruct a distribution of density ... across the whole survey area that is both consistent with the observed data and for which the entropy is ...
Meeting Document : WG-EMM-02/35 : Autor(es): A.S. Brierley, S.F. Gull and M.H. Wafy (United Kingdom)
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EXPLORATORY ASSESSMENT METHODS FOR EXPLORATORY FISHERIES: AN EXAMPLE CASE USING CATCH, IUU CATCH AND TAGGING DATA FOR DIVISION 58.4.3A
exploratory fisheries and by-catch species, where catch data and mark-recapture data are present but more ... detailed data, specifically age or length structured data on catches or surveys, is either missing or ... poorly sampled. As an example case we use the catch data, legal and IUU, and the mark-recapture data in ... ASSESSMENT METHODS FOR EXPLORATORY FISHERIES: AN EXAMPLE CASE USING CATCH, IUU CATCH AND TAGGING DATA FOR ...
Meeting Document : WG-SAM-08/05 : Autor(es): R.M Hillary (UK)