Search results
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Information from repeat acoustic transects to inform feedback management strategies: data for SG-ASAM 2016
vessels is one approach to collecting data to inform within season feedback management schemes. However ... , a lack of sufficient data exists from which to examine its efficacy. In addition to the time/monetary ... commitment by fishing nations to collect such data, a time series of data, like that collected by the U.S ... approaches. In this paper I present some basic information from data collected by the U.S. AMLR Program along ...
Meeting Document : SG-ASAM-16/04 : Author(s): C.S. Reiss
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EXTRAPOLATING CONTINUOUS PLANKTON RECORDER DATA THROUGH THE SOUTHERN OCEAN USING BOOSTED REGRESSION TREES
spatially comprehensive species distribution layers from discontinuous biological data, by fitting complex ... and scale-dependent relationship between species abundance and available environmental data. The resulting ... BRT (Boosted Regression Trees), to data on the distribution of Oithona similis, a small cyclopoid ... the robustness of the prediction. (1) Non-spatial cross validation tested the relationship against data withheld ...
Meeting Document : WG-SAM-08/12 : Author(s): M.H. Pinkerton, A.N.H. Smith (New Zealand), B. Raymond, G. Hosie (Australia) and B. Sharp (New Zealand)
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Tracer trajectories from the western shelf of South Georgia: ship displacement data
Abstract: Corrected ships heading data were used to calculate drift data for the shelf area ... to the west of South Georgia. The data were collected over a six-week period during 1986. A distance weighted ... interpolation was used to obtain tracer trajectories in this irregular data grid. The vector field is complex ... with no simple flow field. These data include a lot of complex process interactions. Particles getting onto ...
Meeting Document : WS-Flux-94/10 : Author(s): E.J. Murphy, I. Everson and C. Goss (United Kingdom)
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Mapping Application for Penguin Populations and Projected Dynamics (MAPPPD): Data and tools for dynamic management and decision support
includes all available (published and unpublished) data on the four Sphenisciforme penguins (Emperor ... ) for the region south of 60° S. A Bayesian population model integrates the available data to develop estimates ... at www.penguinmap.com provides easy access to the data, with a web based map that allows users to select individual ... or groups of site(s) using polygons or text searches. Once selected, population data from the model ...
Meeting Document : WG-EMM-16/P08 : Author(s): G.R.W. Humphries, C. Che-Castaldo, R. Naveen, M. Schwaller, P. McDowall, M. Schrimpf and H.J. Lynch
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in the Ross Sea including data from the 2006/07 season
–B), using revised catch, catch-at-age, and tag-recapture data for the 2007 season. The updated reference ... using tag-recapture data from all vessels are also presented. Inclusion of all vessels tagging data ... of tagged fish, or to poorer detection rates. However, if data from all vessels was restricted to 2007 ... , model fits to the data were adequate, and, as in previous assessments, the tag-release and recapture ...
Meeting Document : WG-FSA-07/37 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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ANALYSIS OF VME DATA COLLECTED BY UK VESSELS FISHING IN THE ROSS SEA DURING THE 2008/09 CCAMLR SEASON
Abstract: Analysis of VME data collected in 2008/09 by UK vessels and national and international ... observers onboard was carried out to explore evidence of VMEs in the Ross Sea. 2008/09 data corroborated ... areas in 88.1I, E and F identified in our previous analysis of data collected by observers on UK vessels ... VME Indicator Units and CPUE data collected in 2008/09, in order to understand better the meaning ...
Meeting Document : WS-VME-09/05 : Author(s): Peatman, T., Mitchell, R.E., Pearce, J., Agnew, D.J.
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Assessment models for Antarctic toothfish (Dissostichus mawsoni) in SSRU 882E including data from the 2005/06 season
-at-age and tag-recapture data from New Zealand and all vessels. The updated reference case resulted ... data and the all vessel tag-release and recapture data (B0= 10 300 t and 9 530 t respectively). Model ... fits to the data were adequate, with the tag-release and recapture data providing the most information ... on stock size, but none of the data sets had much information about the maximum size of the stock. Monte ...
Meeting Document : WG-FSA-06/48 : Author(s): A. Dunn and S.M. Hanchet (New Zealand)
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Influence of the quality and quantity of data from a multi-year tagging program on bias and precision of biomass estimates from an integrated stock assessment – update
of the tagging program, the type of auxiliary data used in the assessment, and the catch history. Biomass ... estimates generally improved with more and better quality tagging data, however important nuances emerged ... and the resulting data should not be used in stock assessments with only few years of data available. In contrast ... ’ in the data by strongly reducing the fish biomass is not needed for tag-based assessments, since data obtained ...
Meeting Document : WG-FSA-12/18 : Author(s): P.E. Ziegler (Australia)
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International data management
Abstract: The Secretariat communicated with a number of other international data managing ... organisations over the 1994 period. As part of the international data management network, it is essential ... place in data exchange protocols, methodologies and technologies. Author(s): Secretariat Title ... : International data management Approval: Approved ...
Meeting Document : SC-CAMLR-XIII/BG/16 : Author(s): Secretariat
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THE SELECTION OF TRIPS BASED ON DATA METRICS FOR THE ASSESSMENT OF ANTARCTIC TOOTHFISH IN THE ROSS SEA
) in the Ross Sea Region was selected on the basis of data quality metrics for individual trips. Initial ... . These trips were used to define a range for various data quality metrics considered to be informative ... with respect to tagging data. Other trips with data quality metric values within these ranges were added ... . The methods used here provide a means of objectively selecting trips considered to have suitable tagging data ...
Meeting Document : WG-FSA-09/35 : Author(s): D.A.J. Middleton (New Zealand)