Applying Two Active Acoustic Technologies to Document Presence of Large Marine Animal Targets at a Marine Renewable Energy Site
Coastal regions are highly used by humans. The growing marine renewable energy (MRE) industry will add to existing anthropogenic pressures in these regions. Regulatory bodies require animal risk assessment before new industrial activities can progress, and MRE is no exception. Preliminary data of ma...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-09-01
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| Series: | Journal of Marine Science and Engineering |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2077-1312/8/9/704 |
| _version_ | 1797554016312360960 |
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| author | Garrett Staines Gayle Barbin Zydlewski Haley A. Viehman Rachel Kocik |
| author_facet | Garrett Staines Gayle Barbin Zydlewski Haley A. Viehman Rachel Kocik |
| author_sort | Garrett Staines |
| collection | DOAJ |
| description | Coastal regions are highly used by humans. The growing marine renewable energy (MRE) industry will add to existing anthropogenic pressures in these regions. Regulatory bodies require animal risk assessment before new industrial activities can progress, and MRE is no exception. Preliminary data of marine mammal use of an MRE device deployment location could be informative to permitting. A combination of downlooking hydroacoustics using an echosounder and acoustic camera (imaging sonar) was used to provide a number of large targets (proxy for large fish and marine mammals) in an area of interest for MRE tidal turbine deployment in Western Passage, Maine, USA. Data were collected in May, June, August, and September of 2010 and 2011. Of the nine large targets confirmed to be animals, eight were porpoises and one was a shark. Few large targets were observed in May and June, with the majority (90%) being present in August and September of both years. The most large targets were observed when tidal current speed was less than 1 m·s<sup>−1</sup>. These data provide a preliminary assessment of large targets in a single location over sixteen 24-h surveys. The aforementioned methodology could be used for future pre- and post-installation assessments at MRE device deployment locations. Their use in concert with visual and passive acoustic monitoring can provide water depth usage by marine mammals, which is a metric that is difficult to assess with passive acoustic and visual techniques. |
| first_indexed | 2024-03-10T16:24:48Z |
| format | Article |
| id | doaj.art-bf191ca56dac44168f08d88d03107372 |
| institution | Directory Open Access Journal |
| issn | 2077-1312 |
| language | English |
| last_indexed | 2024-03-10T16:24:48Z |
| publishDate | 2020-09-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj.art-bf191ca56dac44168f08d88d031073722023-11-20T13:21:25ZengMDPI AGJournal of Marine Science and Engineering2077-13122020-09-018970410.3390/jmse8090704Applying Two Active Acoustic Technologies to Document Presence of Large Marine Animal Targets at a Marine Renewable Energy SiteGarrett Staines0Gayle Barbin Zydlewski1Haley A. Viehman2Rachel Kocik3Marine Sciences Laboratory, Pacific Northwest National Laboratory, Sequim, WA 98382, USASchool of Marine Sciences, University of Maine, Orono, ME 04469, USAEchoview Software, G.P.O. Box 1387, Hobart, TAS 7001, AustraliaLaboratory of Genetics, University of Wisconsin-Madison, 425-g Henry Mall, Madison, WI 53706, USACoastal regions are highly used by humans. The growing marine renewable energy (MRE) industry will add to existing anthropogenic pressures in these regions. Regulatory bodies require animal risk assessment before new industrial activities can progress, and MRE is no exception. Preliminary data of marine mammal use of an MRE device deployment location could be informative to permitting. A combination of downlooking hydroacoustics using an echosounder and acoustic camera (imaging sonar) was used to provide a number of large targets (proxy for large fish and marine mammals) in an area of interest for MRE tidal turbine deployment in Western Passage, Maine, USA. Data were collected in May, June, August, and September of 2010 and 2011. Of the nine large targets confirmed to be animals, eight were porpoises and one was a shark. Few large targets were observed in May and June, with the majority (90%) being present in August and September of both years. The most large targets were observed when tidal current speed was less than 1 m·s<sup>−1</sup>. These data provide a preliminary assessment of large targets in a single location over sixteen 24-h surveys. The aforementioned methodology could be used for future pre- and post-installation assessments at MRE device deployment locations. Their use in concert with visual and passive acoustic monitoring can provide water depth usage by marine mammals, which is a metric that is difficult to assess with passive acoustic and visual techniques.https://www.mdpi.com/2077-1312/8/9/704active acoustic technologiesDIDSONmarine mammalssharksfishmarine renewable energy (MRE) |
| spellingShingle | Garrett Staines Gayle Barbin Zydlewski Haley A. Viehman Rachel Kocik Applying Two Active Acoustic Technologies to Document Presence of Large Marine Animal Targets at a Marine Renewable Energy Site Journal of Marine Science and Engineering active acoustic technologies DIDSON marine mammals sharks fish marine renewable energy (MRE) |
| title | Applying Two Active Acoustic Technologies to Document Presence of Large Marine Animal Targets at a Marine Renewable Energy Site |
| title_full | Applying Two Active Acoustic Technologies to Document Presence of Large Marine Animal Targets at a Marine Renewable Energy Site |
| title_fullStr | Applying Two Active Acoustic Technologies to Document Presence of Large Marine Animal Targets at a Marine Renewable Energy Site |
| title_full_unstemmed | Applying Two Active Acoustic Technologies to Document Presence of Large Marine Animal Targets at a Marine Renewable Energy Site |
| title_short | Applying Two Active Acoustic Technologies to Document Presence of Large Marine Animal Targets at a Marine Renewable Energy Site |
| title_sort | applying two active acoustic technologies to document presence of large marine animal targets at a marine renewable energy site |
| topic | active acoustic technologies DIDSON marine mammals sharks fish marine renewable energy (MRE) |
| url | https://www.mdpi.com/2077-1312/8/9/704 |
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