Detecting Atlantic herring by parametric sonar
Citable URI
https://hdl.handle.net/1912/3365As published
https://doi.org/10.1121/1.3336398DOI
10.1121/1.3336398Abstract
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.
Description
Author Posting. © Acoustical Society of America, 2010. This article is posted here by permission of Acoustical Society of America for personal use, not for redistribution. The definitive version was published in Journal of the Acoustical Society of America 127 (2010): EL153-EL159, doi:10.1121/1.3336398.
Collections
Suggested Citation
Journal of the Acoustical Society of America 127 (2010): EL153-EL159Related items
Showing items related by title, author, creator and subject.
-
Passive acoustic detection of deep-diving beaked whales
(Acoustical Society of America, 2008-11)Beaked whales can remain submerged for an hour or more and are difficult to sight when they come to the surface to breathe. Passive acoustic detection (PAD) not only complements traditional visual-based methods for detecting ... -
Detection and quantification of oil under sea ice : the view from below
(Elsevier, 2014-08-21)Traditional measures for detecting oil spills in the open-ocean are both difficult to apply and less effective in ice-covered seas. In view of the increasing levels of commercial activity in the Arctic, there is a growing ... -
Acoustic detection and quantification of benthic egg beds of the squid Loligo opalescens in Monterey Bay, California
(Acoustical Society of America, 2006-02)The squid Loligo opalescens is a key species in the nearshore pelagic community of California, supporting the most valuable state marine fishery, yet the stock biomass is unknown. In southern Monterey Bay, extensive beds ...
