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http://dx.doi.org/10.5657/fas.2002.5.3.212

The Application of Image Processing Technology for the Analysis of Fish School Behavior: Evaluation of Fish School Behavior Response to the Approaching Vessel Using Scanning Sonar  

Lee Yoo-Won (Department of Marine Production System Engineering, Pukyong National University)
Mukai Tohru (Laboratory of Marine Environment and Resource Sensing, Graduate School of Fisheries Sciences, Hokkaido University)
Iida Kohji (Laboratory of Marine Environment and Resource Sensing, Graduate School of Fisheries Sciences, Hokkaido University)
Hwang Doo-Jin (Department of Fisheries Science and Technology, Yosu National University)
Shin Hyeong-Il (Department of Marine Production System Engineering, Pukyong National University)
Publication Information
Fisheries and Aquatic Sciences / v.5, no.3, 2002 , pp. 212-218 More about this Journal
Abstract
The response behavior of a fish school to an approaching vessel was observed using scanning sonar. The evaluation using six parameters, which signify characteristics of school shape and behavior by sonar image processing, was proposed. Ten fish schools were analyzed and among them, three fish schools were identified for their changing shape, swimming direction, and swimming speed. Moreover, by tracing fish schools on stack of sonar images, these fish schools were seen to exhibit an apparent change of school shape and behavior. Therefore, the evaluation method of fish school behavior using six characteristic parameters indicating fish school shape and behavior by sonar image processing is useful.
Keywords
Fish school behavior; Image processing; Scanning sonar;
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