2013
DOI: 10.1578/am.39.4.2013.315
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Brief Behavioral Response Threshold Level of a Harbor Porpoise (Phocoena phocoena) to an Impulsive Sound

Abstract: Underwater impulsive sounds may affect the behavior of harbor porpoises within a certain distance from the sound source. To determine the 50% threshold received sound exposure level (SEL) of an impulsive sound that causes a brief behavioral response (a sudden change in swimming speed and/ or direction, similar to a startle response) in harbor porpoises, a male harbor porpoise was exposed once every 3 min to a single impulsive sound: a synthetic exponential pulse with a 5 ms time constant, reproduced by an unde… Show more

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Cited by 7 publications
(6 citation statements)
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“…The potential physical and behavioural impacts of seismic sound on marine mammals have been the focus of numerous studies (reviewed in Nowacek et al 2007, Southall et al 2007, which have advanced understanding of responses for certain cetacean species (e.g. Malme et al 1986, 1988, Finneran et al 2002, Lucke et al 2009, Blackwell et al 2013, Kastelein et al 2013, Schlundt et al 2015. Although the exact impacts of seismic surveys on cetacean auditory systems, behaviour and ultimately population dynamics depend on many factors and are generally not well understood, the need for mitigation measures to prevent adverse effects is broadly accepted.…”
Section: Introductionmentioning
confidence: 99%
“…The potential physical and behavioural impacts of seismic sound on marine mammals have been the focus of numerous studies (reviewed in Nowacek et al 2007, Southall et al 2007, which have advanced understanding of responses for certain cetacean species (e.g. Malme et al 1986, 1988, Finneran et al 2002, Lucke et al 2009, Blackwell et al 2013, Kastelein et al 2013, Schlundt et al 2015. Although the exact impacts of seismic surveys on cetacean auditory systems, behaviour and ultimately population dynamics depend on many factors and are generally not well understood, the need for mitigation measures to prevent adverse effects is broadly accepted.…”
Section: Introductionmentioning
confidence: 99%
“…Unlike the tongue of most dolphins [ 35 , 36 , 37 ], the tongue tip of the Franciscana is barely mobile [ 38 ] and very short, even differing from other freshwater dolphins [ 38 ]. This is probably compensated by the presence of the anterolateral papillae (anterolateral fimbriae) consisting of compact outgrows placed along a single row developed mainly in infants [ 35 , 36 , 38 ].…”
Section: Discussionmentioning
confidence: 99%
“…Unlike the tongue of most dolphins [ 35 , 36 , 37 ], the tongue tip of the Franciscana is barely mobile [ 38 ] and very short, even differing from other freshwater dolphins [ 38 ]. This is probably compensated by the presence of the anterolateral papillae (anterolateral fimbriae) consisting of compact outgrows placed along a single row developed mainly in infants [ 35 , 36 , 38 ]. According to Ferrando et al [ 39 ], these latter papillae may help to create a tight seal between the tongue and the roof of the oral cavity and therefore help with suction feeding, as the period of development of these papillae is coincident with the lactation period [ 40 ].…”
Section: Discussionmentioning
confidence: 99%
“…It is extremely difficult, therefore, to establish relevant metrics and appropriate thresholds to minimize behavioral effects (Southall et al, 2007;Kyhn et al, 2011;Finneran and Jenkins, 2012;Wood et al, 2012;NOAA, 2013;Wisniewska et al, 2014). Behavioral response studies aim to develop dose-behavioral response relationships reflecting the range of sound levels required to elicit a response within a population (e.g., Kastelein et al, 2013a) or the magnitude of response as a function of the stimulus (e.g., Kastelein et al, 2013b). The sound levels that have been reported to start eliciting behavioral responses range between 100 and 180 dB re 1 lPa SPL (Finneran and Jenkins, 2012;Wood et al, 2012;Shannon et al, 2016;Carroll et al, 2017).…”
Section: Introductionmentioning
confidence: 99%