• Login
    About WHOAS
    View Item 
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Applied Ocean Physics and Engineering (AOP&E)
    • View Item
    •   WHOAS Home
    • Woods Hole Oceanographic Institution
    • Applied Ocean Physics and Engineering (AOP&E)
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of WHOASCommunities & CollectionsBy Issue DateAuthorsTitlesKeywordsThis CollectionBy Issue DateAuthorsTitlesKeywords

    My Account

    LoginRegister

    Statistics

    View Usage Statistics

    Determining dominant scatterers of sound in mixed zooplankton populations

    Thumbnail
    View/Open
    JASA_Lavery-2007-2.pdf (4.159Mb)
    Date
    2007-12
    Author
    Lavery, Andone C.  Concept link
    Wiebe, Peter H.  Concept link
    Stanton, Timothy K.  Concept link
    Lawson, Gareth L.  Concept link
    Benfield, Mark C.  Concept link
    Copley, Nancy J.  Concept link
    Metadata
    Show full item record
    Citable URI
    https://hdl.handle.net/1912/2341
    As published
    https://doi.org/10.1121/1.2793613
    DOI
    10.1121/1.2793613
    Keyword
     Acoustic wave scattering; Bioacoustics; Underwater sound 
    Abstract
    High-frequency acoustic scattering techniques have been used to investigate dominant scatterers in mixed zooplankton populations. Volume backscattering was measured in the Gulf of Maine at 43, 120, 200, and 420 kHz. Zooplankton composition and size were determined using net and video sampling techniques, and water properties were determined using conductivity, temperature, and depth sensors. Dominant scatterers have been identified using recently developed scattering models for zooplankton and microstructure. Microstructure generally did not contribute to the scattering. At certain locations, gas-bearing zooplankton, that account for a small fraction of the total abundance and biomass, dominated the scattering at all frequencies. At these locations, acoustically inferred size agreed well with size determined from the net samples. Significant differences between the acoustic, net, and video estimates of abundance for these zooplankton are most likely due to limitations of the net and video techniques. No other type of biological scatterer ever dominated the scattering at all frequencies. Copepods, fluid-like zooplankton that account for most of the abundance and biomass, dominated at select locations only at the highest frequencies. At these locations, acoustically inferred abundance agreed well with net and video estimates. A general approach for the difficult problem of interpreting high-frequency acoustic scattering in mixed zooplankton populations is described.
    Description
    Author Posting. © Acoustical Society of America, 2007. 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 122 (2007): 3304-3326, doi:10.1121/1.2793613.
    Collections
    • Applied Ocean Physics and Engineering (AOP&E)
    • Biology
    Suggested Citation
    Journal of the Acoustical Society of America 122 (2007): 3304-3326
     

    Related items

    Showing items related by title, author, creator and subject.

    • Thumbnail

      Differences between sound scattering by weakly scattering spheres and finite-length cylinders with applications to sound scattering by zooplankton 

      Stanton, Timothy K.; Wiebe, Peter H.; Chu, Dezhang (Acoustical Society of America, 1998-01)
      A modeling study was conducted to determine the conditions under which fluidlike zooplankton of the same volume but different shapes (spherical/cylindrical) have similar or dramatically different scattering properties. ...
    • Thumbnail

      Sound scattering by several zooplankton groups. I. Experimental determination of dominant scattering mechanisms 

      Stanton, Timothy K.; Chu, Dezhang; Wiebe, Peter H.; Martin, Linda V.; Eastwood, Robert L. (Acoustical Society of America, 1998-01)
      The acoustic scattering properties of live individual zooplankton from several gross anatomical groups have been investigated. The groups involve (1) euphausiids (Meganyctiphanes norvegica) whose bodies behave acoustically ...
    • Thumbnail

      Sound scattering by several zooplankton groups. II. Scattering models 

      Stanton, Timothy K.; Chu, Dezhang; Wiebe, Peter H. (Acoustical Society of America, 1998-01)
      Mathematical scattering models are derived and compared with data from zooplankton from several gross anatomical groups—fluidlike, elastic shelled, and gas bearing. The models are based upon the acoustically inferred ...
    All Items in WHOAS are protected by original copyright, with all rights reserved, unless otherwise indicated. WHOAS also supports the use of the Creative Commons licenses for original content.
    A service of the MBLWHOI Library | About WHOAS
    Contact Us | Send Feedback | Privacy Policy
    Core Trust Logo