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Differences in acoustic target strength pattern between fish with one- and two-chambered swimbladder during rotation in the horizontal plane
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SYSNO ASEP 0360213 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Differences in acoustic target strength pattern between fish with one- and two-chambered swimbladder during rotation in the horizontal plane Author(s) Frouzová, Jaroslava (BC-A) RID, ORCID
Kubečka, Jan (BC-A) RID, ORCID
Mrkvička, Tomáš (BC-A) RIDSource Title Fisheries Research. - : Elsevier - ISSN 0165-7836
Roč. 109, č. 1 (2011), s. 114-118Number of pages 5 s. Language eng - English Country NL - Netherlands Keywords target strength ; fish ; swimbladder ; horizontal ; acoustics Subject RIV EH - Ecology, Behaviour R&D Projects GA206/07/1392 GA ČR - Czech Science Foundation (CSF) CEZ AV0Z60170517 - HBU-Z, BC-A (2005-2011) UT WOS 000289400300014 DOI 10.1016/j.fishres.2011.01.026 Annotation Pattern of target strength (TS) during 360° rotation in the horizontal plane was studied for six common European fish species: brown trout (Salmo trutta), perch (Perca fluviatilis) bream (Abramis brama), roach (Rutilus rutilus), carp (Cyprinus carpio), and bleak (Alburnus alburnus). The TS distribution differed, between fish with one- and two-chambered swimbladders. For two-chambered fish, the TS transition between minima and maxima was linear, and the median of the TS value was similar to the mean. For one-chambered fish TS distribution was skewed and median TS considerable smaller than the mean, The relationship between TS and fish aspect relative to the sonar beam, can be described by a linear model for fish with two-chambered swimbladders and by a quadratic model for fish with one-chambered swimbladders. This study provides new general equations for modeling the dependence of TS on any body aspect in the horizontal plane as well as equations for common European fish species. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2012
Number of the records: 1