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Daniels, Chris J; Poulton, Alex J; Esposito, Mario; Paulsen, Maria Lund; Bellerby, Richard G J; St John, M; Martin, Adrian Peter (2013): Chlorophyll-a, primary production rates, carbon concentrations and cell counts of coccolithophores, diatoms and microzooplankton measured in water samples from the North Atlantic during the M87/1 cruise in April 2012. PANGAEA,, Supplement to: Daniels, CJ et al. (2015): Phytoplankton dynamics in contrasting early stage North Atlantic spring blooms: composition, succession, and potential drivers. Biogeosciences, 12(8), 2395-2409,

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The Deep Convection cruise repeatedly sampled two locations in the North Atlantic, sited in the Iceland and Norwegian Basins, onboard the RV Meteor (19 March - 2 May 2012). Samples were collected from multiple casts of a conductivity-temperature-depth (CTD) - Niskin rosette at each station. Water samples for primary production rates, community structure, chlorophyll a [Chl a], calcite [PIC], particulate organic carbon [POC] and biogenic silicic acid [BSi] were collected from predawn casts from six light depths (55%, 20%, 14%, 7%, 5% and 1% of incident PAR). Additional samples for community structure and ancillary parameters were collected from a second cast. Carbon fixation rates were determined using the 13C stable isotope method. Water samples for diatom and micro zooplankton counts, collected from the predawn casts, were preserved with acidic Lugol's solution (2% final solution) and counted using an inverted light microscope. Water samples for coccolithophore counts were collected onto cellulose nitrate filters and counted using polarising light microscopy. Water samples for Chl a analysis were filtered onto MF300 and polycarbonate filters and extracted in 90% acetone. PIC and BSi samples were filtered onto polycarbonate filters and analysed using an inductively coupled plasma emission optical spectrometer and a SEAL QuAAtro autoanalyser respectively.
Median Latitude: 62.069208 * Median Longitude: -7.361464 * South-bound Latitude: 61.499667 * West-bound Longitude: -11.000667 * North-bound Latitude: 62.833500 * East-bound Longitude: -2.499833
Date/Time Start: 2012-03-25T09:18:00 * Date/Time End: 2012-04-29T03:41:00
Minimum DEPTH, water: m * Maximum DEPTH, water: 115 m
M87/1_413-1 * Latitude Start: 61.500000 * Longitude Start: -10.999833 * Latitude End: 61.500000 * Longitude End: -10.999833 * Date/Time Start: 2012-03-25T09:18:00 * Date/Time End: 2012-03-25T11:02:00 * Elevation: 0.0 m * Campaign: M87/1a (Deep Convection Cruise) * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M87/1_421-1 (Station 1) * Latitude Start: 61.500333 * Longitude Start: -10.999833 * Latitude End: 61.500000 * Longitude End: -10.999833 * Date/Time Start: 2012-03-26T03:43:00 * Date/Time End: 2012-03-26T04:59:00 * Elevation: 0.0 m * Campaign: M87/1a (Deep Convection Cruise) * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
M87/1_447-1 * Latitude Start: 62.833500 * Longitude Start: -2.499833 * Latitude End: 62.833333 * Longitude End: -2.499833 * Date/Time Start: 2012-03-30T04:03:00 * Date/Time End: 2012-03-30T05:30:00 * Elevation: 0.0 m * Campaign: M87/1a (Deep Convection Cruise) * Basis: Meteor (1986) * Method/Device: CTD/Rosette (CTD-RO)
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4Date/Time of eventDate/Time
5DEPTH, waterDepth watermGeocode
6Bottle numberBottleDaniels, Chris JNiskin Bottle
7Chlorophyll a as carbonChl amg/m3Daniels, Chris J
8Chlorophyll a as carbonChl amg/m3Daniels, Chris J>10 µm
9Chlorophyll a as carbonChl amg/m3Daniels, Chris J<10 µm
10Biogenic silicabSiO2µmol/lDaniels, Chris J
11Carbon, inorganic, particulatePICµmol/lDaniels, Chris J
12Carbon, organic, particulatePOCµmol/lDaniels, Chris J
13Primary production, carbon assimilation (24 hr.)PP24mmol/m3/dayDaniels, Chris J
14Primary production, carbon assimilation (24 hr.)PP24mmol/m3/dayDaniels, Chris J<10 µm
15Emiliania huxleyiE. huxleyi#/lDaniels, Chris JCounting
16Coccolithus pelagicusC. pelagicus#/lDaniels, Chris JCounting
17Coccolithus leptoporusC. leptoporus#/lDaniels, Chris JCounting
18Coronosphaera mediterraneaC. mediterranea#/lDaniels, Chris JCounting
19Syracosphaera pulchraS. pulchra#/lDaniels, Chris JCounting
20Pseudo-nitzschia spp.Pseudo-nitzschia spp.#/lDaniels, Chris JCounting
21Chaetoceros spp.Chaetoceros spp.#/lDaniels, Chris JCounting
22Thalassiosira spp.Thalassiosira spp.#/lDaniels, Chris JCounting
23Leptocylindrus spp.Leptocylindrus spp.#/lDaniels, Chris JCounting
24Guinardia striataG. striata#/lDaniels, Chris JCounting
25Thalassionema spp.Thalassionema spp.#/lDaniels, Chris JCounting
26Cylindrotheca spp.Cylindrotheca spp.#/lDaniels, Chris JCounting
27Rhizosolenia spp.Rhizosolenia spp.#/lDaniels, Chris JCounting
28Navicula spp.Navicula spp.#/lDaniels, Chris JCounting
29Dactyliosolen spp.Dactyliosolen spp.#/lDaniels, Chris JCounting
30Diatoms, pennales indeterminataDiatom pen indet#/lDaniels, Chris JCounting
31Diatoms, centrales indeterminataDiatom cen indet#/lDaniels, Chris JCounting
32Gyrodinium spp.Gyrodinium spp.#/lDaniels, Chris JCounting5-10 µm
33Gymnodinium spp.Gymnodinium spp.#/lDaniels, Chris JCounting5-10 µm
34Gyrodinium spp.Gyrodinium spp.#/lDaniels, Chris JCounting>10 µm
35Gymnodinium spp.Gymnodinium spp.#/lDaniels, Chris JCounting>10 µm
36Dinoflagellates, armouredDinofl armoured#/lDaniels, Chris JCounting
37CryptophytesCryptophytes#/lDaniels, Chris JCounting
38CiliatesCiliates#/lDaniels, Chris JCounting
39SilicoflagellatesSilicoflag#/lDaniels, Chris JCounting
832 data points

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