OES-Environmental distributes metadata forms (questionnaires) to solicit information from researchers around the world who are exploring the environmental effects of marine renewable energy. This page provides a description and contact information related to the research. Content is updated on an annual basis.

Discussion of the Effects of the Underwater Noise Radiated by a Wave Energy Device - Portugal

Study Status: 
Completed
Princple Investigator Contact Information: 

Name: Erica Cruz

Address: WavEC Offshore Renewables, R. Dom Jerónimo Osório, n˚ 11, 1˚andar, 1400-119 Lisboa, Portugal

Email: erica.cruz@wavec.org

Project Description: 

This paper aims to present the results of a study carried out to characterise the noise radiated by the WaveRoller (WR) device installed in Peniche, Portugal and to assess its potential impact on marine mammals occurring in the study area. An acoustic campaign was carried out in September 2014. At the study site the only marine mammals occurring are cetaceans. The results indicate that the frequency ranges at which the device operates overlap those used by some low and midfrequency cetaceans. Only behavioural responses would be expected if the organisms swim near the WaveRoller. Cetaceans were not detected around the WaveRoller device probably because of the low depth where the device was installed. To conclude, facing the lack of knowledge regarding the underwater noise radiated by wave energy devices this study brings a new contribution to the state of the art presenting the characterization of the underwater sound radiated by the WaveRoller, a totally submerged wave energy device.

Funding Source: 

This research was supported by AW -Energy.

Location of Research: 

Peniche, Portugal

Project Aims: 

To assess the noise of an oscillating wave surge converter, the WaveRoller, and discuss its potential impacts on cetacean species occurring at the site.

Project Progress: 

Completed

Key Findings: 

The results indicate that the frequency ranges at which the device operates overlap those used by some low and midfrequency cetaceans. Only behavioural responses would be expected if the organisms swim near the WaveRoller. Cetaceans were not detected around the WaveRoller device probably because of the low depth where the device was installed.

Related Publications: 

Cruz, E.; Simas, T.; Kasanen, E. (2015). Discussion of the Effects of the Underwater Noise Radiated by a Wave Energy Device - Portugal. Paper Presented at the 11th European Wave and Tidal Energy Conference, Nantes, France. https://tethys.pnnl.gov/publications/discussion-effects-underwater-noise-radiated-wave-energy-device-portugal

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