SIMRES Ambient Noise: Observed Differences in the Underwater Noise Soundscape Before and After Implementing the 2019 and 2020 Saturna Island Interim Sanctuary Zones

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Language of the publication
English
Date
2021-06-07
Type
Report
Author(s)
  • Warner, Graham A.
  • Dofher, Toren S.
  • Martin, S. Bruce

Abstract

Underwater ambient noise levels from recordings collected by the Saturna Island Marine Research and Education Society (SIMRES) at two locations in Boundary Pass were analyzed to compare differences in the underwater soundscape before and after implementing the 2019 and 2020 Saturna Island Interim Sanctuary Zones (ISZ). Several factors limited the interpretation of the results, including gaps in the acoustic data, calibration errors, non-acoustic system noise changes, uncertain large- and small-vessel presence, and current-induced flow noise. Given these limitations, the results were inconclusive with regard to documenting any real change in noise within the ISZ between years.

Description

Underwater ambient noise levels from recordings collected by the Saturna Island Marine Research and Education Society (SIMRES) at two locations in Boundary Pass were analyzed by JASCO to compare differences in the underwater soundscape before and after implementing the 2019 and 2020 Saturna Island Interim Sanctuary Zones.

Subject

  • Transport

Keywords

  • Marine, underwater noise,
  • SIMRES,
  • Saturna Island Marine Research and Education Society,
  • JASCO,
  • Interim Sanctuary Zone, ISZ,
  • Southern Resident killer whale,
  • killer whale,
  • ambient noise,
  • Salish Sea,
  • Boundary Pass,
  • ambient sound levels

Rights

Pagination

i-xvi, 1-30, A1-B3

Peer review

Internal Review

Open access level

Not Applicable

Identifiers

Government document number
TP 15505e
ISBN
978-0-660-41219-1

Report

Report no.
TP 15505e

Sponsors

Innovation Centre, Transport Canada

Citation(s)

Warner, G.A., Dofher, T.S., & Martin, S.B. (2021), SIMRES Ambient Noise: Observed Differences in the Underwater Noise Soundscape Before and After Implementing the 2019 and 2020 Saturna Island Interim Sanctuary Zones, (TP 15505e), Transport Canada (sponsor).

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Marine transportation

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