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    Fish target strengths for use in echo integrator surveys

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    JAS000981.pdf (1.021Mb)
    Date
    1987-09
    Author
    Foote, Kenneth G.  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/5652
    As published
    https://doi.org/10.1121/1.395298
    DOI
    10.1121/1.395298
    Abstract
    In situ measurements of fish target strength are selected for use in echo integrator surveys at 38 kHz. The results are expressed through equations in which the mean target strength TS is regressed on the mean fish length l in centimeters. For physoclists, TS=20 log l−67.4, and for clupeoids, TS=20 log l−71.9. These equations are supported by independent measurements on tethered, caged, and freely aggregating fish and by theoretical computations based on the swimbladder form. Causes of data variability are attributed to differences in species, behavior, and, possibly, swimbladder state.
    Description
    Author Posting. © Acoustical Society of America, 1987. 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 82 (1987): 981-987, doi:10.1121/1.395298.
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    • Applied Ocean Physics and Engineering (AOP&E)
    Suggested Citation
    Journal of the Acoustical Society of America 82 (1987): 981-987
     
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