Acoustic Characteristics of Small Research Vessels
Vessel noise is an acute and chronic stressor of a wide variety of marine fauna. Understanding, modelling and mitigating the impacts of this pollutant requires quantification of acoustic signatures for various vessel classes for input into propagation models and at present there is a paucity of such...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-11-01
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| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/8/12/970 |
| _version_ | 1797546436460544000 |
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| author | Miles Parsons Mark Meekan |
| author_facet | Miles Parsons Mark Meekan |
| author_sort | Miles Parsons |
| collection | DOAJ |
| description | Vessel noise is an acute and chronic stressor of a wide variety of marine fauna. Understanding, modelling and mitigating the impacts of this pollutant requires quantification of acoustic signatures for various vessel classes for input into propagation models and at present there is a paucity of such data for small vessels (<25 m). Our study provides this information for three small vessels (<6 m length and 30, 90 and 180 hp engines). The closest point of approach was recorded at various ranges across a flat, ≈10 m deep sandy lagoon, for multiple passes at multiple speeds (≈5, 10, 20, 30 km h<sup>−1</sup>) by each vessel at Lizard Island, Great Barrier Reef, Australia. Radiated noise levels (RNLs) and environment-affected source levels (ASLs) determined by linear regression were estimated for each vessel and speed. From the slowest to fastest speeds, median RNLs ranged between 153.4 and 166.1 dB re 1 µPa m, whereas ASLs ranged from 146.7 to 160.0 dB re 1 µPa m. One-third octave band-level RNLs are provided for each vessel–speed scenario, together with their interpolated received levels with range. Our study provides data on source spectra of small vessels to assist in understanding and modelling of acoustic exposure experienced by marine fauna. |
| first_indexed | 2024-03-10T14:30:11Z |
| format | Article |
| id | doaj.art-056c8e21cac74429830836cfaa2e0135 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T14:30:11Z |
| publishDate | 2020-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-056c8e21cac74429830836cfaa2e01352023-11-20T22:39:29ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-11-0181297010.3390/jmse8120970Acoustic Characteristics of Small Research VesselsMiles Parsons0Mark Meekan1Australian Institute of Marine Science, Perth, WA 6009, AustraliaAustralian Institute of Marine Science, Perth, WA 6009, AustraliaVessel noise is an acute and chronic stressor of a wide variety of marine fauna. Understanding, modelling and mitigating the impacts of this pollutant requires quantification of acoustic signatures for various vessel classes for input into propagation models and at present there is a paucity of such data for small vessels (<25 m). Our study provides this information for three small vessels (<6 m length and 30, 90 and 180 hp engines). The closest point of approach was recorded at various ranges across a flat, ≈10 m deep sandy lagoon, for multiple passes at multiple speeds (≈5, 10, 20, 30 km h<sup>−1</sup>) by each vessel at Lizard Island, Great Barrier Reef, Australia. Radiated noise levels (RNLs) and environment-affected source levels (ASLs) determined by linear regression were estimated for each vessel and speed. From the slowest to fastest speeds, median RNLs ranged between 153.4 and 166.1 dB re 1 µPa m, whereas ASLs ranged from 146.7 to 160.0 dB re 1 µPa m. One-third octave band-level RNLs are provided for each vessel–speed scenario, together with their interpolated received levels with range. Our study provides data on source spectra of small vessels to assist in understanding and modelling of acoustic exposure experienced by marine fauna.https://www.mdpi.com/2077-1312/8/12/970vessel noiseradiated noise levelsmonopole source levelspropagation loss |
| spellingShingle | Miles Parsons Mark Meekan Acoustic Characteristics of Small Research Vessels Journal of Marine Science and Engineering vessel noise radiated noise levels monopole source levels propagation loss |
| title | Acoustic Characteristics of Small Research Vessels |
| title_full | Acoustic Characteristics of Small Research Vessels |
| title_fullStr | Acoustic Characteristics of Small Research Vessels |
| title_full_unstemmed | Acoustic Characteristics of Small Research Vessels |
| title_short | Acoustic Characteristics of Small Research Vessels |
| title_sort | acoustic characteristics of small research vessels |
| topic | vessel noise radiated noise levels monopole source levels propagation loss |
| url | https://www.mdpi.com/2077-1312/8/12/970 |
| work_keys_str_mv | AT milesparsons acousticcharacteristicsofsmallresearchvessels AT markmeekan acousticcharacteristicsofsmallresearchvessels |