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Voelker, Antje H L (2025): Iberia-Forams cruise in September 2012 - coccolithophore assemblage data [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.988162 (DOI registration in progress)

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Published: 2025-12-17

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Abstract:
These data present results from seawater samples collected at 11 stations in a north-south transect along the western and southwestern Iberian margin in September 2012. Seawater samples at defined depths across the upper 300 meters were filtered in order to perform qualitative and quantitative analysis of extant coccolithophores. For species identification a piece of the filter paper was cut off and analyzed in a Scanning Electronic Microscope at the University of Salamanca (Spain). The aim of this work was studying the composition of the coccolithophore assemblages along the western Iberian margin as well as across the water column at each station. Approximately 15 species were identified. Two vertical zones, separated by a seasonal or a permanent thermocline, can be distinguished in the photic zone: the upper part, counting on more diversity and dominated by small placoliths; and the lower part, mainly inhabited by Florisphaera profunda. Minor changes are encountered with regard to the horizontal distribution, where temperature is likely the dominant environmental variable.
Keyword(s):
Coccolithophores; CTD data; Iberian margin
Related to:
Ausin, Blanca; Flores, José Abel; Sierro, Francisco Javier; Cabarcos, E; Voelker, Antje H L (2014): Coccolithophore distribution from seawater column samples along the western Iberian margin during a late summer situation. INA Workshop on Extant Coccolithophores research. Crete (Greece), 5-10 October 2014
Voelker, Antje H L (2012): EUROFLEETS Cruise Summary Report - IBERIA-FORAMS, R/V Garcia del Cid, Cruise Iberia-Forams, 10.09.2012 - 16.09.2012, Vigo (Spain) – Huelva (Spain). IPMA Relatórios de Campanha, 33 pp.
Funding:
Horizon 2020 (H2020), grant/award no. 228344: EUROFLEETS - Towards an Alliance of European Research Fleets
Coverage:
Median Latitude: 38.496473 * Median Longitude: -9.189673 * South-bound Latitude: 36.037300 * West-bound Longitude: -10.113500 * North-bound Latitude: 42.099000 * East-bound Longitude: -7.714200
Date/Time Start: 2012-09-10T00:00:00 * Date/Time End: 2012-09-15T00:00:00
Minimum DEPTH, water: 10 m * Maximum DEPTH, water: 300 m
Event(s):
Ib-F2 * Latitude: 42.099000 * Longitude: -9.593000 * Date/Time: 2012-09-10T00:00:00 * Elevation: -1792.0 m * Location: North Atlantic Ocean * Campaign: EUROFLEETS_Iberia-Forams * Basis: Garcia del Cid * Method/Device: CTD/Rosette (CTD-RO)
Ib-F3 * Latitude: 41.203700 * Longitude: -9.601300 * Date/Time: 2012-09-11T00:00:00 * Elevation: -1650.0 m * Location: North Atlantic Ocean * Campaign: EUROFLEETS_Iberia-Forams * Basis: Garcia del Cid * Method/Device: CTD/Rosette (CTD-RO)
Ib-F4 * Latitude: 40.334300 * Longitude: -9.765000 * Date/Time: 2012-09-11T00:00:00 * Elevation: -800.0 m * Location: North Atlantic Ocean * Campaign: EUROFLEETS_Iberia-Forams * Basis: Garcia del Cid * Method/Device: CTD/Rosette (CTD-RO)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEventVoelker, Antje H L
2Date/Time of eventDate/TimeVoelker, Antje H L
3Latitude of eventLatitudeVoelker, Antje H L
4Longitude of eventLongitudeVoelker, Antje H L
5Elevation of eventElevationmVoelker, Antje H L
6DEPTH, waterDepth watermVoelker, Antje H LGeocode
7Gephyrocapsa, smallGephyrocapsa small#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
8Emiliania huxleyiE. huxleyi#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
9Gephyrocapsa muelleraeG. muellerae#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
10Gephyrocapsa oceanicaG. oceanica#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
11Gephyrocapsa oceanica, smallG. oceanica small#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
12SyracosphaeraSyracosphaera#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
13CoccolithusCoccolithus#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
14Calcidiscus leptoporusC. leptoporus#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
15Helicosphaera carteriH. carteri#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
16UmbilicosphaeraUmbilicosphaera#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
17RhabdosphaeraRhabdosphaera#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
18UmbellosphaeraUmbellosphaera#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
19Florisphaera profundaF. profunda#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
20OolithotusOolithotus#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
21Gephyrocapsa caribbeanicaG. caribbeanica#Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
22Placoliths, smallPlacoliths small%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
23Gephyrocapsa oceanicaG. oceanica%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)total
24Gephyrocapsa muelleraeG. muellerae%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
25Gephyrocapsa oceanicaG. oceanica%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
26Gephyrocapsa oceanica, smallG. oceanica small%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
27SyracosphaeraSyracosphaera%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
28CoccolithusCoccolithus%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
29Calcidiscus leptoporusC. leptoporus%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
30Helicosphaera carteriH. carteri%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
31UmbilicosphaeraUmbilicosphaera%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
32RhabdosphaeraRhabdosphaera%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
33UmbellosphaeraUmbellosphaera%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
34Florisphaera profundaF. profunda%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
35OolithotusOolithotus%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
36Gephyrocapsa caribbeanicaG. caribbeanica%Voelker, Antje H LFiltered seawater; Scanning electron microscopy (SEM)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1950 data points

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