CE15012 Deep-Links: Ecosystem services of deep-sea biotopes Survey

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This inter-institutional survey, led by University College Dublin (UCD), took place on board the Marine Institute's R.V. Celtic Explorer in October/November 2015 in the Gulf of Cadiz. The aim of the survey was to assess the role of geothermal fluids emitted from points of venting (geothermal mud-volcanoes) on cold-water corals and sponge gardens in habitat diversification, biomass accumulation and biodiversity. The three planned sites were surveyed, as well as an additonal one.

Mapping/CTD – prior to multi-beaming a sound velocity profile (SVP) was acquired using the CTD. At the same time as colleting SVP data the CTD was used to collect oceanic water for isotope and eDNA analyses. Multinet – a multinet was deployed to sample plankton at three different depths (same depth as the CTD water samples) both day and night to allow for assessing differences in biodiversity in the epipelagic and mesopelagic during light and dark hours. Gravity core – sediment samples were collected using a gravity corer (5m) to retrieve sediments for chemical analyses at each mud-volcano. No coring was performed at the coral control site. ROV – The Holland 1 ROV was deployed at each site to collect hard samples, acquire high-def video, ROV based cores and temperature profiles from seep areas.

Data Resources (8)

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University College Dublin home page
SeaDataNet-Pan-European Infrastructure for marine data 2 home page
Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) home page
Marine Information Service home page
Marine Institute home page
Theme Environment
Date dataset released 2018-01-02
Date dataset updated 2021-05-17
Dataset conforms to these standards See the referenced specification
Rights notes {"Consult license for use limitations",otherRestrictions,otherRestrictions}
Update frequency Other
Language English
Geographic coverage in GeoJSON format {"type":"Polygon","coordinates":[[[-10.507043, 36.157099],[-10.507043, 53.261468], [-6.40903, 53.261468], [-6.40903, 36.157099], [-10.507043, 36.157099]]]}
Spatial Reference Systems (SRS) WGS 84 (EPSG:3857)
Provenance information Data supplied by University College Dublin.
Period of time covered (begin) 2015-10-23
Period of time covered (end) 2015-11-12

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