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Developing OBIS into a tool to provide reliable estimates of population indices for marine species from research trawl surveys
Branton, R.; Ricard, D. (2007). Developing OBIS into a tool to provide reliable estimates of population indices for marine species from research trawl surveys, in: Vanden Berghe, E. et al. (Ed.) Proceedings Ocean Biodiversity Informatics: International Conference on Marine Biodiversity Data Management, Hamburg, Germany 29 November to 1 December, 2004. VLIZ Special Publication, 37: pp. 19-24
In: Vanden Berghe, E. et al. (2007). Proceedings Ocean Biodiversity Informatics: International Conference on Marine Biodiversity Data Management, Hamburg, Germany 29 November to 1 December, 2004. VLIZ Special Publication, 37. IOC Workshop Report, 202. VI, 192 pp., more
In: VLIZ Special Publication. Vlaams Instituut voor de Zee (VLIZ): Oostende. ISSN 1377-0950, more

Available in  Authors 
Document type: Conference paper

Keywords
    Acquisition > Data acquisition
    Catching methods > Net fishing > Trawling
    Control > Quality control
    Data
    Fisheries
    Marine/Coastal

Authors  Top 
  • Branton, R., more
  • Ricard, D.

Abstract
    Research trawl surveys from Canada's Department of Fisheries and Oceans (DFO) and the US National Oceanographic and Atmospheric Agency (NOAA) are used as a basis for developing a road-map to prepare research trawl surveys in general for public access via systems such as Ocean Biogeographic Information System (OBIS). Data quality issues associated with surveys includes validation of species names, treatment of zeros, data standardization techniques and provision of confidence limits. Suggestions to improve the OBIS system include support for summary statistics and length classes as well as addition of a gazetteer facility. The Bedford Institute of Oceanography's recently established OBIS provider service is also described.

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