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GIS visualisation and analysis of mobile hydroacoustic fisheries data: a practical example
Author(s) -
COLEY A. R.,
CLABBURN P.
Publication year - 2005
Publication title -
fisheries management and ecology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.693
H-Index - 55
eISSN - 1365-2400
pISSN - 0969-997X
DOI - 10.1111/j.1365-2400.2005.00461.x
Subject(s) - visualization , fish <actinopterygii> , interpolation (computer graphics) , geography , fishery , survey methodology , bay , survey data collection , cartography , geographic information system , computer science , remote sensing , data science , data mining , statistics , computer graphics (images) , biology , mathematics , archaeology , animation
Hydroacoustic remote sensing of fish populations residing in large freshwater bodies has become a widely used and effective monitoring tool. However, easy visualisation of the data and effective analysis is more problematic. The use of GIS‐based interpolations enables easy visualisation of survey data and an analysis tool for investigating fish populations. Three years of hydroacoustic surveys of Cardiff Bay in South Wales presented an opportunity to develop analysis and visualisation techniques. Inverse distance weighted (IDW) interpolation was used to show the potential of such techniques in analysing survey data both spatially (1‐year survey) and temporally (by looking at the spatial changes between years). IDW was fairly successful in visualising the hydroacoustic data for Cardiff Bay. However, other techniques may improve on this initial work and provide improved analysis, total density estimates and statistically derived estimations of prediction error.