Natural and shipping underwater sound distribution in the Northern Adriatic Sea basin and possible application on target areas.

Publication date: Aug 29, 2024

The underwater sound distribution generated by natural sources, shipping and trawling activities has been computed by the Quonops(c) modelling webservice for the Northern Adriatic Sea (NAS) during 2020, a year characterized by the COVID-19 lockdown restrictions. Modelling has been calibrated by using a year-long time series of field measurements covering the domain of interest. Sound levels (50th percentile) ranged between 75 and 90 dB re 1μPa for all the considered frequencies (63 Hz, 125 Hz, 250 Hz third octave bands). Noisier NAS areas match with the shipping lanes and the distribution of trawling activity. Pressure sound indices based on masking effect were computed for two Ecologically/Biologically Significant Marine Areas (EBSA) located in the NAS. Results indicated a significant contribution of vessel and fishery-generated noise to the local soundscape and provide a basis for addressing NAS underwater noise pollution, with special reference to the Marine Spatial Planning approach.

Concepts Keywords
90db AIS-based noise pollution
Adriatic Northern Adriatic Sea
Underwater Pressure sound index
Webservice Underwater sound modelling

Semantics

Type Source Name
disease MESH COVID-19
disease VO time
drug DRUGBANK Sulodexide

Original Article

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