|Contributor(s)||Vaz Sandrine, Facq Jean-Valery|
The objective of this task is to develop a new towed underwater video system (TUVS), called ‘Pagure-2’ in order to map habitats, describe biodiversity, and monitor ecological changes in coastal benthic ecosystems. For this purpose, we modified an existing TUVS (‘Pagure’) to expand the range of accessible benthic habitats, to get more stable footage on irregular rocky bottoms, and to investigate fragile ecosystems (e.g., marine protected areas) where impact has to be limited. Thus, the Pagure-2 is a more versatile tool capable of being deployed on two different configurations: a classical ‘sledge’ mode with skates, and a ‘flying’ mode that reduces contact with the sea floor. It is easily deployable on small (~25 m) coastal vessels as well as large research vessels and was designed to cope with a 10-500 m operating depth range and with all kind of sea conditions and currents. It is also simple to use opportunistically on different kind of scientific cruises (benthic survey, fisheries stock assessment, hydrology, etc…) and without any dedicated specialist staff.
Carlier Antoine (2017). Report on developments dedicated to monitor and study benthic comportment and processes. JERICO-NEXT-WP3-D3.10-170917-V1.3. https://archimer.ifremer.fr/doc/00630/74248/