Institute for Energy Transition
dedicated to Marine Renewable Energies
RSS News
Symbole FEM
19/10/2018

Mooring and Anchoring Research Engineer

The lighthouse of the Jument seen from the sky
26/09/2018

Using the building as an experimental device on a scale of 1:1.

MISTRAL sea test site: Informational meeting
17/09/2018

Informational meeting at Port-Saint-Louis-du-Rhône city on September 14th.

Example of colonization by benthic species of a sumarine cable - BREBENT Project, FEM-IFREMER
14/08/2018

To study in an integrated way the impact of floating wind farms.

OES Annual Report 2017
13/03/2018

This Annual Report presents an overview of the activities undertaken within OES in 2017, as well as updated country reviews prepared by the Delegates

R&D>Completed projects>BENTHOSCOPE

BENTHOSCOPE

Acoustic index of benthic resources  on hard substrates for the assessment  of impacts from tidal stream turbines

Projet description

The BENTHOSCOPE project’s objective is to diagnose  the state and trends  of benthic populations  of a rocky marine habitat  by listening to the sounds they produce, rather like  a stethoscope is used  in the field of medicine. The benthos is the assemblage of organisms living near the seafloor and a vital compartment for the functioning of ecosystems in coastal environments. It also holds economic, heritage and iconic stakes within these environments, which are also the preferred areas for deploying facilities to produce power from marine renewable energies (MRE).
  
The rich biota in the benthos will therefore be described using passive acoustics. There are several advantages to this monitoring tool, including access to indicators from the living environment (their sound production), its non-intrusive nature, high temporal resolution, affordable cost and the possibility  of studying marine ecosystems  over the long term.
  
Thanks to this operational method, the following transfer functions will be measured on the scale  of populations: biological richness (biomass and diversity), spatial variability, temporal variability. The project will take on scientific and technical challenges on one of the first sites where stream turbines are to be deployed in France.

Objectives

  • To carry out the first acoustic description of the benthos on a hard substrate and  in a strong current.
  • To develop methods which are innovative because they provide quantitative environmental monitoring of the potential impacts of stream turbines on the benthic compartment of hard substrates, for which conventional methods are lacking.

Partners

BENTHOSCOPE project partners