[Top] [All Lists]

New article in Reviews in Fish Biology and Fisheries

To: <>
Subject: New article in Reviews in Fish Biology and Fisheries
From: "Sonja Amoser" <>
Date: Fri, 15 Sep 2006 09:13:41 +0200
Robert P. Mueller, Richard S. Brown, Haakon Hop, and Larry Moulton
(2006): Video and acoustic camera techniques for studying fish under
ice: a review and comparison. Rev. Fish Biol. Fisher., Vol 16 (2),

Abstract: Researchers attempting to study the presence, abundance,
size, and behavior of fish species in northern and arctic climates
during winter face many challenges, including the presence of thick
ice cover, snow cover, and, sometimes, extremely low
temperatures. This paper describes and compares the use of video and
acoustic cameras for determining fish presence and behavior in lakes,
rivers, and streams with ice cover. Methods are provided for
determining fish density and size, identifying species, and measuring
swimming speed and successful applications of previous surveys of fish
under the ice are described. These include drilling ice holes,
selecting batteries and generators, deploying pan and tilt cameras,
and using paired colored lasers to determine fish size and habitat
associations. We also discuss use of infrared and white light to
enhance image-capturing capabilities, deployment of digital recording
systems and time-lapse techniques, and the use of imaging
software. Data are presented from initial surveys with video and
acoustic cameras in the Sagavanirktok River Delta, Alaska, during late
winter 2004. These surveys represent the first known successful
application of a dual-frequency identification sonar (DIDSONTM)
acoustic camera under the ice that achieved fish detection and sizing
at camera ranges up to 16 m.  Feasibility tests of video and acoustic
cameras for determining fish size and density at various turbidity
levels are also presented. Comparisons are made of the different
techniques in terms of suitability for achieving various fisheries
research objectives. This information is intended to assist
researchers in choosing the equipment that best meets their study

DOI 10.1007/s11160-006-9011-0


Sonja Amoser

University of Vienna, Dept. of Neuroscience and Behavioral Biology
Sonja Amoser
PhD Student, Research Associate

Althanstrasse 14
1090 Vienna
tel: +43 (1) 4277 54467
fax: +43 (1) 4277 54506
mobile: +43 (664) 500 61 06

<Prev in Thread] Current Thread [Next in Thread>
  • New article in Reviews in Fish Biology and Fisheries, Sonja Amoser <=

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the Bioacoustics-L mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU