Journal Article

<i>In situ</i> target-strength measurement of young hairtail (<i>Trichiurus haumela</i>) in the Yellow Sea

Xianyong Zhao

in ICES Journal of Marine Science

Published on behalf of ICES/CIEM

Volume 63, issue 1, pages 46-51
Published in print January 2006 | ISSN: 1054-3139
Published online January 2006 | e-ISSN: 1095-9289 | DOI: http://dx.doi.org/10.1016/j.icesjms.2005.07.010
In situ target-strength measurement of young hairtail (Trichiurus haumela) in the Yellow Sea

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The target strength of hairtail (Trichiurus haumela) in the Yellow Sea was measured in situ with a 38 kHz, split-beam echosounder on 2 January 2001. The fish measured were of the 2000 year class, its anal length ranged from 62 to 115 mm, with a mean of 89.8 mm. The mean target strength of these young hairtail was estimated to be −49.2 dB, with a 95% confidence interval of (−49.4, −49.0) dB. This provided a rare and useful reference for the acoustic-abundance estimation of hairtail.

Keywords: hairtail; target strength; Yellow Sea

Journal Article.  2694 words.  Illustrated.

Subjects: Environmental Science ; Marine and Estuarine Biology

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