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    Loudness-dependent behavioral responses and habituation to sound by the longfin squid (Doryteuthis pealeii)

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    v2 squid behavior paper_revised_changes accepted_inc_suppl_Tables.pdf (757.5Kb)
    Date
    2016-05-02
    Author
    Mooney, T. Aran  Concept link
    Samson, Julia E.  Concept link
    Schlunk, Andrea D.  Concept link
    Zacarias, Samantha  Concept link
    Metadata
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    Citable URI
    https://hdl.handle.net/1912/8036
    As published
    https://doi.org/10.1007/s00359-016-1092-1
    Keyword
     Noise; Bioacoustics; Soundscape; Auditory scene; Invertebrate 
    Abstract
    Sound is an abundant cue in the marine environment, yet we know little regarding the frequency range and levels which induce behavioral responses in ecologically key marine invertebrates. Here we address the range of sounds that elicit unconditioned behavioral responses in squid Doryteuthis pealeii, the types of responses generated, and how responses change over multiple sound exposures. A variety of response types were evoked, from inking and jetting to body pattern changes and fin movements. Squid responded to sounds from 80-1000 Hz, with response rates diminishing at the higher and lower ends of this frequency range. Animals responded to the lowest sound levels in the 200-400 Hz range. Inking, an escape response, was confined to the lower frequencies and highest sound levels; jetting was more widespread. Response latencies were variable but typically occurred after 0.36 s (mean) for jetting and 0.14 s for body pattern changes; pattern changes occurred significantly faster. These results demonstrate that squid can exhibit a range of behavioral responses to sound include fleeing, deimatic and protean behaviors, all of which are associated with predator evasion. Response types were frequency and sound level dependent, reflecting a relative loudness concept to sound perception in squid.
    Description
    Author Posting. © The Author(s), 2016. This is the author's version of the work. It is posted here by permission of Springer for personal use, not for redistribution. The definitive version was published in Journal of Comparative Physiology A 202 (2016): 489-501, doi:10.1007/s00359-016-1092-1.
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    Suggested Citation
    Preprint: Mooney, T. Aran, Samson, Julia E., Schlunk, Andrea D., Zacarias, Samantha, "Loudness-dependent behavioral responses and habituation to sound by the longfin squid (Doryteuthis pealeii)", 2016-05-02, https://doi.org/10.1007/s00359-016-1092-1, https://hdl.handle.net/1912/8036
     
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