Video S1 from High rates of vessel noise disrupt foraging in wild harbour porpoises ( Phocoena phocoena )

Behavior of porpoise hp12_293a around the time of passage of a presumed fast ferry. UPPER PANEL: Spectrogram composed of power spectral densities (PSDs) in 1-Hz bands. The broadband vertical bands indicate noise when the porpoise surfaces. The narrow vertical lines at above 120 kHz are clicks produc...

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Bibliographic Details
Main Authors: Wisniewska, Danuta Maria, Johnson, Mark, Teilmann, Jonas, Siebert, Ursula, Galatius, Anders, Dietz, Rune, Madsen, Peter Teglberg
Format: Article in Journal/Newspaper
Language:unknown
Published: The Royal Society 2018
Subjects:
Environmental Science
Ecology
FOS Biological sciences
60801 Animal Behaviour
Harbour porpoise
Phocoena phocoena
Online Access:https://dx.doi.org/10.6084/m9.figshare.5840871.v1
https://rs.figshare.com/articles/Video_S1_from_High_rates_of_vessel_noise_disrupt_foraging_in_wild_harbour_porpoises_i_Phocoena_phocoena_i_/5840871/1
Description
Summary:Behavior of porpoise hp12_293a around the time of passage of a presumed fast ferry. UPPER PANEL: Spectrogram composed of power spectral densities (PSDs) in 1-Hz bands. The broadband vertical bands indicate noise when the porpoise surfaces. The narrow vertical lines at above 120 kHz are clicks produced by the tagged animal and its calf. LOWER PANEL: Approximate three-dimensional path of a harbour porpoise (individual hp12_293a, see figure 3) estimated by dead reckoning using pressure, accelerometer and magnetometer data recorded by the DTAG-3 tag. The track is colour-coded by root-mean-squared (RMS) minimum specific acceleration (MSA), a proxy for activity, in 0.5-s windows. The track has been displaced by 5 m relative to the water surface, to better show the movements of the porpoise during the vessel noise exposure.

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