Citation:

PANGAEA.931350

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Abstract:

During the active upwelling in November 2018 a 7-day drifting trap survey has been performed in an active upwelling cell off Cape Blanc. This survey is performed to extend information about the production, succession and transport of dinoflagellate cysts (dinocysts) and planktonic foraminifera as well as to study the excystment of dinoflagellate cysts in the upper water column.

Organic- and calcareous-walled dinoflagellate cysts and planktonic foraminifera have been collected on 7 successive days with drifting traps at 100 m, 200 m, and 400 m water depth. The 7-day survey covered a successive change from active upwelling toward stratified conditions. Highest production of organic dinocysts and planktonic foraminifera were observed under active upwelling conditions and decreased drastically towards the end of the survey. Calcareous dinocysts appeared later during upwelling relaxation. Collected cytoplasm bearing (full) dinocysts and foraminifera were produced in the water column above the traps (<100 m depth). Part of the organic-walled empty dinocysts were resuspended implying that sediments below the survey site are likely to contain both local and allochthonous cyst assemblages. We are the first to show that excystment in the upper water column is species-specific. Brigantedinium excysted in the upper water column before reaching deeper depths whereas no upper water column excystment was observed for the other dinoflagellate species. Both dinoflagellate and planktonic foraminifera associations showed a clear succession from active upwelling conditions towards upwelling relaxation and stratification of the upper water column.

Related to:

Zonneveld, Karin A F; Meilland, Julie; Donner, Barbara; Versteegh, Gerard J M (2021): Export flux succession of dinoflagellate cysts and planktonic foraminifera in an active upwelling cell off Cape Blanc (NW Africa). European Journal of Phycology, 1-19, https://doi.org/10.1080/09670262.2021.1885066

Project(s):

Center for Marine Environmental Sciences (MARUM)

Funding:

Deutsche Forschungsgemeinschaft, Bonn (DFG), grant/award no. 413534516 : Can patchiness explain habitat variability in planktonic foraminifera?

Coverage:

Median Latitude: 20.918243 * Median Longitude: -17.896564 * South-bound Latitude: 20.729033 * West-bound Longitude: -18.000283 * North-bound Latitude: 21.163367 * East-bound Longitude: -17.788083

Date/Time Start: 2018-11-19T11:07:00 * Date/Time End: 2018-11-25T08:56:00

Minimum DEPTH, water: 100 m * Maximum DEPTH, water: 400 m

Event(s):

MSM79_25-2 (GeoB23325-2) * Latitude: 20.729033 * Longitude: -17.788083 * Date/Time: 2018-11-19T11:07:00 * Elevation: -606.0 m * Campaign: * Basis: * Method/Device: Trap, drifting (DF) * Comment: DT-1

MSM79_27-3 (GeoB23327-3) * Latitude: 20.788367 * Longitude: -17.813267 * Date/Time: 2018-11-20T14:46:00 * Elevation: -870.0 m * Campaign: * Basis: * Method/Device: Trap, drifting (DF) * Comment: DT-2

MSM79_35-4 (GeoB23335-4) * Latitude: 20.815717 * Longitude: -17.859400 * Date/Time: 2018-11-21T10:27:00 * Elevation: -1035.0 m * Campaign: * Basis: * Method/Device: Trap, drifting (DF) * Comment: DT-3

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event		Zonneveld, Karin A F
2	Optional event label	Event 2		Zonneveld, Karin A F
3	Latitude of event	Latitude		Zonneveld, Karin A F
4	Longitude of event	Longitude		Zonneveld, Karin A F
5	Elevation of event	Elevation	m	Zonneveld, Karin A F
6	Sample code/label	Sample label		Zonneveld, Karin A F
7	DEPTH, water	Depth water	m	Zonneveld, Karin A F		Geocode
8	Brigantedinium spp.	Brigantedinium spp.	#	Zonneveld, Karin A F	Counting
9	Echinidinium aculeatum	E. aculeatum	#	Zonneveld, Karin A F	Counting
10	Echinidinium granulatum	E. granulatum	#	Zonneveld, Karin A F	Counting
11	Echinidinium zonneveldiae	E. zonneveldiae	#	Zonneveld, Karin A F	Counting
12	Echinidinium spp.	Echinidinium spp.	#	Zonneveld, Karin A F	Counting
13	Protoperidinium monospinum	P. monospinum	#	Zonneveld, Karin A F	Counting
14	Protoperidinium americanum	P. americanum	#	Zonneveld, Karin A F	Counting
15	Stelladinium stellatum	S. stellatum	#	Zonneveld, Karin A F	Counting
16	Selenopemphix quanta	S. quanta	#	Zonneveld, Karin A F	Counting
17	Selenopemphix nephroides	S. nephroides	#	Zonneveld, Karin A F	Counting
18	Islandinium brevispinosum	I. brevispinosum	#	Zonneveld, Karin A F	Counting
19	Dubridinium spp.	Dubridinium spp.	#	Zonneveld, Karin A F	Counting
20	Xandarodinium xanthum	X. xanthum	#	Zonneveld, Karin A F	Counting
21	Quinquecuspis concreta	Q. concreta	#	Zonneveld, Karin A F	Counting
22	Votadinium calvum	V. calvum	#	Zonneveld, Karin A F	Counting
23	Acontocysta constrictum	A. constrictum	#	Zonneveld, Karin A F	Counting
24	Peridinoid spp.	Peridinoid spp.	#	Zonneveld, Karin A F	Counting
25	Pentapharsodinium dalei	P. dalei	#	Zonneveld, Karin A F	Counting
26	Gymnodinium catenatum	G. catenatum	#	Zonneveld, Karin A F	Counting
27	Gymnodinium microreticulatum cyst	G. microreticulatum cyst	#	Zonneveld, Karin A F	Counting	nolerii
28	Impagidinium spp.	Impagidinium spp.	#	Zonneveld, Karin A F	Counting
29	Lingulodinium machaerophorum	L. machaerophorum	#	Zonneveld, Karin A F	Counting
30	Operculodinium centrocarpum	O. centrocarpum	#	Zonneveld, Karin A F	Counting
31	Spiniferites spp.	Spiniferites spp.	#	Zonneveld, Karin A F	Counting
32	Dinoflagellate cyst, phototrophic	Dinofl cyst phototr	#	Zonneveld, Karin A F	Counting	other phototrophic cysts
33	Dinoflagellate cyst	Dinofl cyst	#	Zonneveld, Karin A F	Counting	total organic-walled dinoflagellate cysts
34	Globorotalia inflata	G. inflata	#	Zonneveld, Karin A F	Counting
35	Neogloboquadrina incompta	N. incompta	#	Zonneveld, Karin A F	Counting
36	Globigerina bulloides	G. bulloides	#	Zonneveld, Karin A F	Counting
37	Globigerinella calida	G. calida	#	Zonneveld, Karin A F	Counting
38	Globigerinella scitula	G. scitula	#	Zonneveld, Karin A F	Counting
39	Orbulina universa	O. universa	#	Zonneveld, Karin A F	Counting
40	Foraminifera, planktic, other	Foram plankt oth	#	Zonneveld, Karin A F	Counting
41	Foraminifera, planktic, total	Foram plankt tot	#	Zonneveld, Karin A F	Counting
42	Thoracosphaera heimii	T. heimii	#	Zonneveld, Karin A F	Counting
43	Sphaerodinella albatrosiana	S. albatrosiana	#	Zonneveld, Karin A F	Counting
44	Leonella granifera	L. granifera	#	Zonneveld, Karin A F	Counting
45	Number of calcareous species	Spec No calc	#	Zonneveld, Karin A F	Counting	other calc
46	Scrippsiella acuminata	S. acuminata	#	Zonneveld, Karin A F	Counting
47	Scrippsiella tuberosa	S. tuberosa	#	Zonneveld, Karin A F	Counting
48	Dinoflagellates, calcareous	Dinofl cal	#	Zonneveld, Karin A F	Counting	total

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Status:

Curation Level: Enhanced curation (CurationLevelC)

Size:

840 data points

Data

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

1 Event	2 Event 2	3 Latitude	4 Longitude	5 Elevation [m]	6 Sample label	7 Depth water [m]	8 Brigantedinium spp. [#]	9 E. aculeatum [#]	10 E. granulatum [#]	11 E. zonneveldiae [#]	12 Echinidinium spp. [#]	13 P. monospinum [#]	14 P. americanum [#]	15 S. stellatum [#]	16 S. quanta [#]	17 S. nephroides [#]	18 I. brevispinosum [#]	19 Dubridinium spp. [#]	20 X. xanthum [#]	21 Q. concreta [#]	22 V. calvum [#]	23 A. constrictum [#]	24 Peridinoid spp. [#]	25 P. dalei [#]	26 G. catenatum [#]	27 G. microreticulatum cyst [#]	28 Impagidinium spp. [#]	29 L. machaerophorum [#]	30 O. centrocarpum [#]	31 Spiniferites spp. [#]	32 Dinofl cyst phototr [#]	33 Dinofl cyst [#]	34 G. inflata [#]	35 N. incompta [#]	36 G. bulloides [#]	37 G. calida [#]	38 G. scitula [#]	39 O. universa [#]	40 Foram plankt oth [#]	41 Foram plankt tot [#]	42 T. heimii [#]	43 S. albatrosiana [#]	44 L. granifera [#]	45 Spec No calc [#]	46 S. acuminata [#]	47 S. tuberosa [#]	48 Dinofl cal [#]
MSM79_25-2	GeoB23325-2	20.7290	-17.7881	-606	DT1-100	100	117	1	0	66	0	0	1	0	0	1	2	0	0	1	1	1	4	1	0	0	0	0	0	1	0	197	8	60	0	9	0	0	0	77	0	0	5	0	4	4	13
MSM79_25-2	GeoB23325-2	20.7290	-17.7881	-606	DT1-200	200	96	0	0	71	0	0	0	2	1	1	1	0	0	2	0	0	5	2	0	0	0	0	0	1	1	183	9	14	2	1	4	0	0	30	0	3	7	0	7	7	24
MSM79_27-3	GeoB23327-3	20.7884	-17.8133	-870	DT2-100	100	89	0	0	23	1	0	1	1	0	0	0	0	0	1	0	1	0	3	0	0	0	0	0	0	0	120	14	33	0	4	0	0	0	51	1	0	0	0	3	3	7
MSM79_27-3	GeoB23327-3	20.7884	-17.8133	-870	DT2-200	200	81	0	0	40	1	1	2	2	0	0	0	1	0	1	0	0	0	2	0	0	1	0	0	2	0	134	1	0	0	2	2	0	0	5	1	3	13	0	2	2	21
MSM79_27-3	GeoB23327-3	20.7884	-17.8133	-870	DT2-400	400	66	3	2	43	3	5	2	2	0	1	2	0	1	4	0	2	0	3	0	0	1	0	0	0	1	141	1	0	0	1	0	0	0	2	1	2	5	0	5	5	18
MSM79_35-4	GeoB23335-4	20.8157	-17.8594	-1035	DT3-100	100	107	3	0	10	1	0	2	0	0	0	4	0	0	1	0	0	0	4	0	0	0	0	3	0	0	135	9	30	1	2	0	0	0	42	0	2	2	0	25	25	54
MSM79_35-4	GeoB23335-4	20.8157	-17.8594	-1035	DT3-200	200	75	0	1	51	0	0	1	1	0	1	0	2	1	0	0	0	1	3	0	0	0	1	2	1	1	142	2	1	1	0	0	0	0	4	2	15	23	1	15	15	71
MSM79_35-4	GeoB23335-4	20.8157	-17.8594	-1035	DT3-400	400	90	2	1	48	1	4	6	1	2	2	4	0	2	2	1	1	1	4	0	0	0	1	0	0	0	173	0	0	0	0	0	0	0	0	1	6	27	1	3	3	41
MSM79_37-3	GeoB23337-3	20.8837	-17.9090	-1426	DT4-100	100	83	3	1	13	0	1	0	3	0	0	9	0	0	1	0	0	0	3	0	0	0	0	1	0	0	118	11	16	0	5	0	0	0	32	2	1	4	0	49	49	105
MSM79_37-3	GeoB23337-3	20.8837	-17.9090	-1426	DT4-200	200	43	2	3	49	0	1	0	0	0	0	1	0	1	0	0	0	0	2	0	0	3	1	0	2	0	108	1	1	2	0	0	2	0	6	1	8	20	0	12	12	53
MSM79_37-3	GeoB23337-3	20.8837	-17.9090	-1426	DT4-400	400	76	3	0	45	1	4	2	3	1	0	9	3	1	1	1	0	3	1	0	1	0	0	0	1	0	156	0	1	0	0	0	0	0	1	1	6	19	0	9	9	44
MSM79_41-3	GeoB23341-3	20.9701	-17.9400	-1692	DT5-100	100	54	0	1	2	0	0	0	1	0	1	1	0	0	0	0	0	0	0	0	0	0	3	1	0	0	64	2	7	6	1	8	0	0	24	1	1	4	0	14	14	34
MSM79_41-3	GeoB23341-3	20.9701	-17.9400	-1692	DT5-200	200	71	0	0	17	2	1	1	0	0	1	1	0	0	0	0	2	0	3	0	0	0	1	0	0	1	101	1	2	0	1	2	0	0	6	3	10	40	2	27	27	109
MSM79_41-3	GeoB23341-3	20.9701	-17.9400	-1692	DT5-400	400	76	2	0	14	0	6	1	1	0	2	0	1	0	1	1	2	2	1	0	1	0	0	0	0	2	113	0	1	0	0	0	0	0	1	1	12	20	0	11	11	55
MSM79_44-3	GeoB23344-3	21.0774	-17.9659	-1753	DT6-100	100	36	1	0	4	0	1	1	1	0	1	0	1	0	0	0	0	2	2	0	0	0	4	0	0	0	54	15	6	1	2	3	0	1	28	4	3	0	0	7	7	21
MSM79_44-3	GeoB23344-3	21.0774	-17.9659	-1753	DT6-200	200	76	1	0	10	0	1	0	0	0	0	0	0	0	0	0	0	0	8	0	2	0	2	1	0	0	101	1	2	3	2	9	0	0	17	2	3	9	1	6	6	27
MSM79_44-3	GeoB23344-3	21.0774	-17.9659	-1753	DT6-400	400	90	0	0	8	0	7	0	0	0	4	4	0	0	1	0	0	0	1	1	0	1	0	0	0	0	117	4	0	0	0	0	0	0	4	2	12	17	0	4	4	39
MSM79_48-3	GeoB23348-3	21.1634	-18.0003	-1611	DT7-100	100	21	1	0	2	2	0	1	0	0	0	0	0	0	0	0	0	0	3	0	3	0	0	1	0	0	34	8	6	4	2	0	1	0	21	8	1	2	0	6	6	23
MSM79_48-3	GeoB23348-3	21.1634	-18.0003	-1611	DT7-200	200	55	0	1	0	0	1	1	0	0	0	1	0	0	0	0	0	0	2	0	9	0	0	0	1	2	73	1	0	0	0	0	2	0	3	9	5	10	3	3	3	33
MSM79_48-3	GeoB23348-3	21.1634	-18.0003	-1611	DT7-400	400	92	1	0	0	0	2	1	0	0	0	2	0	0	0	0	0	0	1	0	2	0	0	0	0	0	101	2	3	0	0	0	0	0	5	6	25	17	0	2	2	52