b6317222-0de6-4a69-983f-3416f959b8bf
eng
Graeme Duncan
Joint Nature Conservation Committee
Graeme.Duncan@jncc.gov.uk
2023-10-27T13:53:45.63Z
ISO 19115:2003/19139
1.0
WGS 1984
Anton Dohrn habitats/biotopes
GB001134
2009-07-30T00:00:00
Data collected aboard the MV Franklin in July 2009: Acoustics (Multibeam echosounder), Drop camera/towed video (10 sites).
The original survey plan (Stewart 2009) for the Anton Dohrn Seamount AoS involved a combination of radial transects on the top of Anton Dohrn and a suite of transects parallel to the flanks of the seamount both at the top of the flank and a level near the base the flank tohighlight the lower level of possible rock or hard substrate.
The survey plan was subsequently modified to provide an area of multibeam coverage over two areas on the flanks of the seamount. The areas selected were on the south-eastern flank and the northwestern flank (Figure 5) and included diverse morphological features noted during the SEA 7 2005 survey (Jacobs 2006). The areas would provide a contrast between the south-eastern area primarily subject to southern water masses and the north-western area occasionally influenced by ÔÇÿcolderÔÇÖ NSDW waters spilling over the Wyville Thomson Ridge. The two case study areas also differ in the height of the cliff surrounding the seamount. In the northwestern area the break in slope is at around 845m below sea level with the cliff descending to the moat at around 2195m depth, the slope levels off below 1700m at the foot of the cliff.
The south-eastern area shows a subtle break in slope at around 875m below sea level and a major break in slope at around 1100m below sea level before the cliff descends towards the centre of the moat at around 2300m water depth. The range of morphological features observed on the lower slopes of also differed. Both the original biotope map showign Annex I habitats and a translated EUNIS version are available.
Research
JNCC, University of Plymouth
University of Plymouth
+44 1752 584955
Marine Institute
Plymouth University
Level 3
Marine Building
Drake Circus
Plymouth
Devon
PL4 8AA
United Kingdom
marine.institute@plymouth.ac.uk
Graeme Duncan
Joint Nature Conservation Committee
Marine Mapping Scientist
Monkstone House, City Road
Peterborough
Cambridgeshire
PE1 1JY
United Kingdom
Graeme.Duncan@jncc.gov.uk
thumbnail
large_thumbnail
Anton Dohrn Seamount
Northeast Atlantic
Marine habitat mapping
EUNIS
Habitats and biotopes
Oceanographic geographical features
GEMET - INSPIRE themes, version 1.0
2008-06-01
geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme
Available under the Open Government Licence 2.0
eng
environment
2009-07-01T10:35:00
2009-07-30T00:00:00
-11.62611
-10.50734818
57.15966
58.11164000000001
Long, D., Howell, K.L., Davies, J., Stewart, H. & Golding, N. (Editor). 2010. JNCC Offshore Natura Survey of Anton Dohrn Seamount and East Rockall Bank Areas of Search. JNCC Report No. 437.
ESRI Shapefile
2015
https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_view_maplibrary/wms?
OGC:WMS
gb001134
View map "GB001134" through the EMODnet Seabed Habitats "Map Library" Web Map Service
https://ows.emodnet-seabedhabitats.eu/geoserver/emodnet_open_maplibrary/wfs?
OGC:WFS
gb001134
Access data from map "GB001134" through the EMODnet Seabed Habitats "Map Library" Web Feature Service
https://files.emodnet-seabedhabitats.eu/data/EMODnetSBHsurvey_GB001134.zip
WWW:LINK-1.0-http--link
EMODnet Seabed Habitats Static Download
undefined
Survey technique details: The camera system comprised a 5 megapixel Kongsberg Simrad digital stills camera, video camera and an integrated DTS 6000 digital video telemetry system. This map is available in the Annex I and EUNIS 2007-11 classification systems. Associated datasets: GB003012.