REBENT 18

Type Oceanographic cruise
Set This cruise is part of the set REBENT
Ship Thalia
Ship owner Ifremer
Dates 08/05/2009 - 25/05/2009
Chief scientist(s) EHRHOLD Axel ORCID, HAMON Dominique

GEO-OCEAN - UMR 6538

Univ. Brest, CNRS, Ifremer, Univ. Bretagne Sud

Place Nicolas Copernic

29280 Plouzané

https://www.geo-ocean.fr/
DOI 10.17600/9070090
Objective The Rebent 18 cruise had a dual objective: (1) monitoring of benthic biocenoses in the frame of REBENT/Brittany. This involved complementing the Bay of Morlaix sector both in terms of acoustics (REBENT 17 mission in 2008) and of biological sampling and seabed observations. Some infralittoral biocenoses of substrates in the bay were previously localized using acoustic devices (DF1000 and EM1000), sediment sampling, underwater videos and biological sampling. (2) spatial monitoring of marl deposits selected in the framework of monitoring the good ecological status of water masses for the Water Framework Directive (WFD). This concerns 10 marl beds around Brittany. Deposits in northern Brittany and the Iroise Sea were covered in 2008 during REBENT 17 (sites of Douarnenez, Molène, Saint-Brieuc and Saint-Malo). Additional coverage is needed in the Bay of Douarnenez, while new surveys were made at Concarneau, Glénan at Belle-île. It is a question of better appraising the extent of the marl beds selected, using acoustic surveys and then refining the information on the biological monitoring station. This is part of the REBENT project. The geographical boundaries of the working zones were: Geographical boundaries (essential): Belle-île : North: 47°24'N South: 47°17'N West: 3°16'W East: 3°02'W //Concarneau: North: 47°49' N South: 47°46' N West 3°55' W East: 3°52' W / Glénan: North: 47°45' N South: 47°42' N West: 4°02' W East: 3°58'W //Douarnenez: North: 48°15' N South: 48°04' N West: 4°34' W East: 4°16'W //Morlaix: North: 48°47' N South: 48°41' N West: 3°59' W East: 3°47'W.

Data managed by SISMER

Bibliography

Publications

Le Gall B., Authemayou C., Graindorge David, Duperret A., Kaci T., Ehrhold AxelORCID, Schmitt T. (2021). Status of basement terranes in orogens. Insights from the Cadomian domain of the North Armorican Variscides, Western France. Tectonics, 40(5), e2020TC006578 (25p.). Publisher's official version : https://doi.org/10.1029/2020TC006578 , Open Access version : https://archimer.ifremer.fr/doc/00694/80589/


Gorman Daniel, Bajjouk Touria, Populus Jacques, Vasquez MickaelORCID, Ehrhold AxelORCID (2013). Modeling kelp forest distribution and biomass along temperate rocky coastlines. Marine Biology, 160(6), 1523-1523. https://doi.org/10.1007/s00227-012-2089-0


References of Technical Reports

Ehrhold AxelORCID, Hamon Dominique, Chevalier Claire (2011). Réseau de surveillance benthique (REBENT) – Région Bretagne. Approche sectorielle subtidale : Identification et caractérisation des habitats benthiques du secteur Morlaix. RST/IFREMER/ODE/DYNECO/Ecologie benthique/11-03/REBENT. 129 p + 14 annexes. https://archimer.ifremer.fr/doc/00152/26276/