Question reference: S5W-36096
- Asked by: Mark Ruskell, MSP for Mid Scotland and Fife, Scottish Green Party
- Date lodged: 11 March 2021
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Current status: Answered by Ben Macpherson on 23 March 2021
Question
To ask the Scottish Government, with reference to the 2020 Marine Scotland-funded study, at what sound pressure level in decibels did bottlenose dolphins show startle responses to a low frequency simulated acoustic startle device signal; whether the magnitude of startle response increases exponentially with increasing sound pressure level; whether sounds which trigger the startle reflex disturb and displace affected mammals, and what the published sound pressure level is of the Genuswave low frequency acoustic startle device.
Answer
The Götz et al. (2020) study is available in the public domain, titled “The startle reflex in echolocating odontocetes: basic physiology and practical implications”, and the details requested can be found there.
I refer to the response to S5W-36099 on 23 March 2021 regarding sound pressure levels of devices.
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