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http://dx.doi.org/10.3796/KSFT.2002.38.3.197

Use of Geographical Parameters of Fish School in the Estimation of Fish School Abundance Using Scanning Sonar  

Lee, Yoo-Won (Pukyong National University)
Mukai, Tohru (Hokkaido University)
Iida, Kohji (Hokkaido University)
Shin, Hyeong-Il (Pukyong National University)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.38, no.3, 2002 , pp. 197-201 More about this Journal
Abstract
The object of this study was to find out the probability of the abundance estimation by geographical parameters of fish school during the acoustic survey using scanning sonar. The acoustic survey was carried out in Funka Bay, off southern Hokkaido, Japan in December 1998. The 180-degree scanning sonar and the echo sounder were used simultaneously. The relationship was examined between geographical parameters (fish school area and volume) measured by sonar and area back scattering coefficient by the echo sounder. The obtained result showed positive correlation. Therefore, the use of geographical parameters of fish school is a useful method in estimating fish school abundance in the acoustic survey using sonar.
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