acoustics
; bay
; environmental monitoring
; noise
; procedures
; season
; ship
; sound
; sound detection
; statistics and numerical data
; United Kingdom
; Acoustics
; Bays
; Environmental Monitoring
; Noise
; Seasons
; Ships
; Sound
; Sound Spectrography
; United Kingdom
Scopus学科分类:
Agricultural and Biological Sciences: Aquatic Science
; Earth and Planetary Sciences: Oceanography
; Environmental Science: Pollution
英文摘要:
Chronic low-frequency anthropogenic sound, such as shipping noise, may be negatively affecting marine life. The EU's Marine Strategy Framework Directive (MSFD) includes a specific indicator focused on this noise. This indicator is the yearly average sound level in third-octave bands with centre frequencies at 63�Hz and 125�Hz. These levels are described for Falmouth Bay, UK, an active port at the entrance to the English Channel. Underwater sound was recorded for 30�min h−�1over the period June 2012 to November 2013 for a total of 435�days. Mean third-octave levels were louder in the 125-Hz band (annual mean level of 96.0�dB re 1�μPa) than in the 63-Hz band (92.6�dB re 1 μPa). These levels and variations are assessed as a function of seasons, shipping activity and wave height, providing comparison points for future monitoring activities, including the MSFD and emerging international regulation. � 2016 The Authors
College of Engineering, Mathematics and Physical Sciences, University of Exeter, Penryn Campus, United Kingdom; Department of Physics, University of Bath, Claverton Down, United Kingdom; Centre for Ecology and Conservation, University of Exeter, Penryn Campus, United Kingdom; Environment and Sustainability Institute, University of Exeter, Penryn Campus, United Kingdom
Recommended Citation:
Garrett J.K.,Blondel P.,Godley B.J.,et al. Long-term underwater sound measurements in the shipping noise indicator bands 63�Hz and 125�Hz from the port of Falmouth Bay, UK[J]. Marine Pollution Bulletin,2016-01-01,110(1)