Detecting Atlantic herring by parametric sonar

Olav Rune Godo; Kenneth G Foote; Johnny Dybedal; Eirik Tenningen; Ruben Patel

doi:10.1121/1.3336398

Detecting Atlantic herring by parametric sonar

J Acoust Soc Am. 2010 Apr;127(4):EL153-9. doi: 10.1121/1.3336398.

Authors

Olav Rune Godo¹, Kenneth G Foote, Johnny Dybedal, Eirik Tenningen, Ruben Patel

Affiliation

¹ Institute of Marine Research, P.O. Box 1870 Nordnes, 5817 Bergen, Norway. olavrune@imr.no

PMID: 20369983
DOI: 10.1121/1.3336398

Abstract

The difference-frequency band of the Kongsberg TOPAS PS18 parametric sub-bottom profiling sonar, nominally 1-6 kHz, is being used to observe Atlantic herring. Representative TOPAS echograms of herring layers and schools observed in situ in December 2008 and November 2009 are presented. These agree well with echograms of volume backscattering strength derived simultaneously with the narrowband Simrad EK60/18- and 38-kHz scientific echo sounder, also giving insight into herring avoidance behavior in relation to survey vessel passage. Progress in rendering the TOPAS echograms quantitative is described.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Acoustics* / instrumentation
Animals
Atlantic Ocean
Avoidance Learning
Behavior, Animal*
Equipment Design
Fishes / physiology*
Norway
Population Density
Radar* / instrumentation
Signal Processing, Computer-Assisted
Social Behavior*
Sound Spectrography
Swimming*
Time Factors
Transducers