Temporal patterns in the soundscape of a Norwegian gateway to the Arctic
Permanent lenke
https://hdl.handle.net/10037/26236Dato
2022-05-10Type
Journal articleTidsskriftartikkel
Peer reviewed
Forfatter
Aniceto, Ana Sofia; Ferguson, Elizabeth L.; Pedersen, Geir; Tarroux, Arnaud; Primicerio, RaulSammendrag
As an Arctic gateway, the Norwegian Sea sustains a rich diversity of seasonal and resident species
of soniferous animals, vulnerable to the efects of climate change and anthropogenic activities.
We show the occurrence of seasonal patterns of acoustic signals in a small canyon of Northern
Norway, and investigate cetacean vocal behavior, human-made noise, and climatic contributions
to underwater sound between January and May 2018. Mostly median sound levels ranged between
68.3 and 96.31 dB re 1 μPa2
across 1/3 octave bands (13 Hz–16 kHz), with peaks in February and
March. Frequencies under 2 kHz were dominated by sounds from baleen whales with highest rates of
occurrence during winter and early spring. During late-spring non-biological sounds were predominant
at higher frequencies that were linked mainly to ship trafc. Seismic pulses were also recorded
during spring. We observed a signifcant efect of wind speed and ship sailing time on received
sound levels across multiple distance ranges. Our results provide a new assessment of high-latitude
continental soundscapes in the East Atlantic Ocean, useful for management strategies in areas where
anthropogenic pressure is increasing. Based on the current status of the local soundscape, we propose
considerations for acoustic monitoring to be included in future management plans.
Forlag
NatureSitering
Aniceto AS, Ferguson, Pedersen G, Tarroux A, Primicerio R. Temporal patterns in the soundscape of a Norwegian gateway to the Arctic. Scientific Reports. 2022;12Metadata
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