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García-Moreiras, Iria; Amorim, Ana; Zonneveld, Karin A F (2024): Dinoflagellate cyst counts from sediment samples along a land-sea transect off Cape Blanc NW Africa (Maria S. Merian cruise MSM79) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.969037

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Abstract:
Dinoflagellate cyst counts obtained in surface sediment samples collected along a shelf break-offshore transect in the upwelling region off Cape Blanc (NW Africa) are presented. Data was collected in November 2018 during the cruise Maria S. Merian MSM 79. New data on organic-walled dinoflagellate cysts in sediments were compared to cyst distributions in the water column and environmental parameters to investigate the cyst dispersal and accumulation patterns in deep-marine environments, detect possible cyst resuspension and other factors affecting cyst distribution in the water column and identify possible environmental signals in the sediment cyst assemblages.
Surface sediments (0-1 cm) were collected at 12 stations using a multi-core system. They were frozen at -20°C immediately after recovery. In the laboratory, sediment samples were subsampled (1 ml) and oven-dried (60 ºC for 24-48 h) to determine the dry bulk density. A known volume of each sample was processed using standard palynological techniques as described in Zonneveld et al. (2012). It included acidic digestion of carbonates (HCl 10%) and silicates (HF 40%). Cysts were concentrated by sonication and sieving through stainless steel meshes (fraction recovered <125 μm and >20 μm). Several cycles of sonication (~3 min each) and washing through the meshes with tap water were applied until the material was clean. Material was further concentrated by centrifugation (5 min at 3500 rpm) and transferred to Eppendorf tubes. The final volumes were adjusted to 0.5 to 1 ml, depending on the amount of organic content. Permanent slides were prepared by using the aliquot method to allow the determination of cyst concentrations. Slides were observed under a Zeiss Axioskop R5111 light microscope at x400 and x1000 magnifications, and all dinoflagellate cysts were identified and counted at the lowest possible taxonomic level.
Keyword(s):
Deep-sea environments; Environmental gradients; Organic-walled Dinoflagellate cysts; Surface sediments
Supplement to:
García-Moreiras, Iria; Amorim, Ana; Zonneveld, Karin A F (2024): Transport and preservation of calcareous and organic-walled dinoflagellate cysts off Cape Blanc (NW africa) in relation to nepheloid layers. Marine Environmental Research, 199, 106577, https://doi.org/10.1016/j.marenvres.2024.106577
References:
Zonneveld, Karin A F; Chen, Liang; Elshanawany, Rehab; Fischer, Helmut W; Hoins, Mirja; Ibrahim, Mohammed I; Pittauerova, Daniela; Versteegh, Gerard J M (2012): The use of dinoflagellate cysts to seperate human-induced from natural variability in the trophic state of the Po River discharge plume over the last two centuries. Marine Pollution Bulletin, 64(1), 114-132, https://doi.org/10.1016/j.marpolbul.2011.10.012
Funding:
Fundação para a Ciência e Tecnologia (FCT), grant/award no. LA/P/0069/2020: Aquatic Research Network (ARNET)
Fundação para a Ciência e Tecnologia (FCT), grant/award no. UIDB/04292/2020: Marine and Environmental Sciences Centre (MARE)
Fundação para a Ciência e Tecnologia (FCT), grant/award no. UIDP/04292/2020: Marine and Environmental Sciences Centre (MARE)
German Research Foundation (DFG), grant/award no. Mer/Met: 17-87: Marine carbon production, export, relocation and degradation under varying ocean redox conditions off NW Africa (MACPEI)
Xunta de Galicia, grant/award no. ED481B-2019-074: postdoctoral fellowship awarded to Iria García-Moreiras
Coverage:
Median Latitude: 20.884734 * Median Longitude: -18.985222 * South-bound Latitude: 20.680683 * West-bound Longitude: -20.834983 * North-bound Latitude: 21.279450 * East-bound Longitude: -17.940667
Date/Time Start: 2018-11-13T12:33:00 * Date/Time End: 2018-11-24T22:49:00
Minimum DEPTH, sediment/rock: m * Maximum DEPTH, sediment/rock: m
Event(s):
MSM79_7-2 (GeoB23307-2)  * Latitude: 21.279450 * Longitude: -20.834983 * Date/Time: 2018-11-13T12:33:00 * Elevation: -4183.0 m * Recovery: 0.30 m * Campaign: MSM79 * Basis: Maria S. Merian * Method/Device: MultiCorer (MUC)
MSM79_8-2 (GeoB23308-2)  * Latitude: 21.123917 * Longitude: -20.249050 * Date/Time: 2018-11-13T21:13:00 * Elevation: -3961.0 m * Recovery: 0.21 m * Campaign: MSM79 * Basis: Maria S. Merian * Method/Device: MultiCorer (MUC)
MSM79_20-9 (GeoB23320-9)  * Latitude: 20.894017 * Longitude: -19.051417 * Date/Time: 2018-11-17T23:38:00 * Elevation: -3215.0 m * Recovery: 0.30 m * Campaign: MSM79 * Basis: Maria S. Merian * Method/Device: MultiCorer (MUC)
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
Event labelEventGarcía-Moreiras, Iria
Latitude of eventLatitudeGarcía-Moreiras, Iria
Longitude of eventLongitudeGarcía-Moreiras, Iria
Elevation of eventElevationmGarcía-Moreiras, Iria
Method/Device of eventMethod/DeviceGarcía-Moreiras, Iria
Date/Time of eventDate/TimeGarcía-Moreiras, Iria
Sample code/labelSample labelGarcía-Moreiras, Iria
Station labelStationGarcía-Moreiras, IriaTransect station
Dilution factorDilutionGarcía-Moreiras, Iria
10 Sample, dry massSamp dmgGarcía-Moreiras, Iriaprocessed
11 DEPTH, sediment/rockDepth sedmGarcía-Moreiras, IriaGeocode
12 Ataxodinium choaneA. choane#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
13 Bitectatodinium spongiumB. spongium#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
14 Diplopelta symmetricaD. symmetrica#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
15 Diplopelta symmetricaD. symmetrica#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
16 Dubridinium sp.Dubridinium sp.#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
17 Echinidinium aculeatumE. aculeatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
18 Echinidinium aculeatumE. aculeatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
19 Echinidinium brevispinosumE. brevispinosum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
20 Echinidinium brevispinosumE. brevispinosum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
21 Echinidinium granulatumE. granulatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsE. granulatum/delicatum
22 Echinidinium transparantumE. transparantum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
23 Echinidinium zonneveldiaeE. zonneveldiae#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
24 Echinidinium zonneveldiaeE. zonneveldiae#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
25 Gymnodinium catenatumG. catenatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
26 Gymnodinium microreticulatumG. microreticulatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
27 Gymnodinium microreticulatumG. microreticulatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
28 Gymnodinium sp.Gymnodinium sp.#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
29 Impagidinium sp.Impagidinium sp.#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
30 Impagidinium aculeatumI. aculeatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
31 Impagidinium aculeatumI. aculeatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
32 Impagidinium paradoxumI. paradoxum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
33 Impagidinium patulumI. patulum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
34 Impagidinium plicatumI. plicatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
35 Impagidinium strialatumI. strialatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
36 Lejeunecysta olivaL. oliva#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
37 Lejeunecysta paratenellaL. paratenella#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
38 Lejeunecysta sabrinaL. sabrina#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
39 Lingulodinium machaerophorumL. machaerophorum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
40 Operculodinium centrocarpumO. centrocarpum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
41 Operculodinium israelianumO. israelianum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationscf. Operculodinium israelianum
42 Pentapharsodinium daleiP. dalei#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
43 Pentapharsodinium daleiP. dalei#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
44 Polysphaeridium zoharyiP. zoharyi#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationscf. Polysphaeridium zoharyi
45 Polykrikos kofoidiiP. kofoidii#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
46 Polykrikos schwartziiP. schwartzii#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
47 Protoperidinium americanumP. americanum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
48 Archaeperidinium constrictumA. constrictum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
49 Archaeperidinium minutumA. minutum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
50 Archaeperidinium minutumA. minutum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
51 Protoperidinium monospinumP. monospinum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
52 Protoperidinium monospinumP. monospinum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
53 Archaeperidinium saanichiA. saanichi#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
54 Quinquecuspis concretaQ. concreta#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
55 Dinoflagellate cyst indeterminata, round brownDinofl indet RBC#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
56 Dinoflagellate cyst indeterminata, round brownDinofl indet RBC#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsfull
57 Selenopemphix nephroidesS. nephroides#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
58 Selenopemphix quantaS. quanta#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
59 Selenopemphix undulataS. undulata#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
60 Steladinium-type with cingular spinesSteladinium-type w cingular spines#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
61 Steladinium-type without cingular spinesSteladinium-type w/o cingular spines#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
62 Spiniferites membranaceousS. membranaceous#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
63 Spiniferites mirabilisS. mirabilis#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsS. mirabilis/hyperacanthus
64 Spiniferites sp.Spiniferites sp.#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
65 Trinovantedinium applanatumT. applanatum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
66 Trinovantedinium pallidifulvumT. pallidifulvum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
67 Peridinoid typePerid-T#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnificationsUnidentifiable brown peridinoids
68 Dinoflagellate cyst indeterminata, spinny brownDinofl indet SBC#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
69 Votadinium calvumV. calvum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
70 Xandarodinium xanthumX. xanthum#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
71 Dinoflagellate cyst, organic, totalDinofl cyst org tot#García-Moreiras, IriaLight microscope, Zeiss Axioskop R5111, x400 and x1000 magnifications
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
768 data points

Data

Download dataset as tab-delimited text — use the following character encoding:


Event

Latitude

Longitude

Elevation [m]

Method/Device

Date/Time

Sample label

Station
(Transect station)

Dilution
10 
Samp dm [g]
(processed)
11 
Depth sed [m]
12 
A. choane [#]
13 
B. spongium [#]
14 
D. symmetrica [#]
15 
D. symmetrica [#]
(full)
16 
Dubridinium sp. [#]
17 
E. aculeatum [#]
18 
E. aculeatum [#]
(full)
19 
E. brevispinosum [#]
20 
E. brevispinosum [#]
(full)
21 
E. granulatum [#]
(E. granulatum/delicatum)
22 
E. transparantum [#]
23 
E. zonneveldiae [#]
24 
E. zonneveldiae [#]
(full)
25 
G. catenatum [#]
26 
G. microreticulatum [#]
27 
G. microreticulatum [#]
(full)
28 
Gymnodinium sp. [#]
29 
Impagidinium sp. [#]
30 
I. aculeatum [#]
31 
I. aculeatum [#]
(full)
32 
I. paradoxum [#]
33 
I. patulum [#]
34 
I. plicatum [#]
35 
I. strialatum [#]
36 
L. oliva [#]
37 
L. paratenella [#]
38 
L. sabrina [#]
39 
L. machaerophorum [#]
40 
O. centrocarpum [#]
41 
O. israelianum [#]
(cf. Operculodinium israelianum)
42 
P. dalei [#]
43 
P. dalei [#]
(full)
44 
P. zoharyi [#]
(cf. Polysphaeridium zoharyi)
45 
P. kofoidii [#]
46 
P. schwartzii [#]
47 
P. americanum [#]
48 
A. constrictum [#]
49 
A. minutum [#]
50 
A. minutum [#]
(full)
51 
P. monospinum [#]
52 
P. monospinum [#]
(full)
53 
A. saanichi [#]
54 
Q. concreta [#]
55 
Dinofl indet RBC [#]
56 
Dinofl indet RBC [#]
(full)
57 
S. nephroides [#]
58 
S. quanta [#]
59 
S. undulata [#]
60 
Steladinium-type w cingular spines [#]
61 
Steladinium-type w/o cingular spines [#]
62 
S. membranaceous [#]
63 
S. mirabilis [#]
(S. mirabilis/hyperacanthus)
64 
Spiniferites sp. [#]
65 
T. applanatum [#]
66 
T. pallidifulvum [#]
67 
Perid-T [#]
(Unidentifiable brown peridinoids)
68 
Dinofl indet SBC [#]
69 
V. calvum [#]
70 
X. xanthum [#]
71 
Dinofl cyst org tot [#]
MSM79_7-2 21.2795-20.8350-4183MultiCorer2018-11-13SS-T1T10.100.6410000000000201000000100200000000000000000300002400101001100000064
MSM79_8-2 21.1239-20.2491-3961MultiCorer2018-11-13SS-T2T20.100.5420000001000202000000300000000200000100000200002200000000000000053
MSM79-11-7 21.0379-19.8052-3723MultiCorer2018-11-15SS-T3T30.100.5140010001000100000000200000000000100001000180003800100001100030069
MSM79-19-3 20.9671-19.4322-3481MultiCorer2018-11-16SS-T4T40.100.5080000020000401000000501000000210000000000330003501200201400010095
MSM79_20-9 20.8940-19.0514-3215MultiCorer2018-11-17SS-T5T50.100.3690000063000172201000112011010107101001010404800186021016015200100217
MSM79_21-4 20.8407-18.7814-2782MultiCorer2018-11-18SS-T6T60.100.280003001580002704000000401100210500100100110990011410350131005200201366
MSM79_23-3 20.8101-18.6139-2396MultiCorer2018-11-19SS-T7T70.100.3220010016110003123000003300010018133010000403012700413702100128104200720429
MSM79_26-7 20.7805-18.4609-1908MultiCorer2018-11-20SS-T8T80.100.31000200331900088480020015004003292830200007030196002244011803310511301301742
MSM79_40-1 20.7575-18.3398-1717MultiCorer2018-11-22SS-T9T90.100.37900000483300093550030000001008173940100117010158001244041509330317511103753
MSM79_39-3 20.7374-18.2343-1577MultiCorer2018-11-22SS-T10T100.100.370003004142000193201800000000040040537500000112010025801029606260336042114108371079
MSM79_46-1 20.7075-18.0788-1794MultiCorer2018-11-24SS-T11T110.100.474002002829000126186010000000000103192000021701201550322250424051913917025010741
MSM79_47-4 20.6807-17.9407-779MultiCorer2018-11-24SS-T12T120.050.5040020021180008211900000000000031316102000270130110031181022505200261000604566