Citation:

S0377-8398(02)00041-5

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Abstract:

Thirty-two surface sediment samples from the Southern Ocean (eastern Atlantic sector), between the Subtropical Front and the Weddell Gyre, were investigated to provide information on the distribution of modern organic-walled dinoflagellate cysts in relation to the oceanic fronts of the Antarctic Circumpolar Current (ACC). A clearly distinguishable distribution pattern was observed in relation to the water masses and fronts of the ACC. The dinoflagellate cysts of species characteristic of open oceanic environments, such as Impagidinium species, are highly abundant around the Subtropical Front, whereas south of this front, cosmopolitan species such as Nematosphaeropsis labyrinthus and the cysts of Protoceratium reticulatum characterise the transition from subtropical to subantarctic surface waters. The subantarctic surface waters are dominated by the cysts of heterotrophic dinoflagellates, such as Protoperidinium spp. and Selenopemphix antarctica. The cysts of Protoperidinium spp. form the dominant part of the assemblages around the Antarctic Polar Front, whereas S. antarctica concentrations increase further to the south. The presence of S. antarctica in sediments of the Maud Rise, a region of seasonal sea-ice cover, reflects its tolerance for low temperatures and sea-ice cover. A previously undescribed species, Cryodinium meridianum gen. nov. sp. nov., has a restricted distribution pattern between the Antarctic Polar Front and the ACC-Weddell Gyre Boundary.

Related to:

Esper, Oliver (2001): Reconstruction of Recent and Late Quaternary oceanographic conditions in the Eastern South Atlantic Ocean based on calcareous- and organic-walled dinoflagellate cysts. Berichte aus dem Fachbereich Geowissenschaften der Universität Bremen, 189, 130 pp, urn:nbn:de:gbv:46-ep000103156

Project(s):

Paleoenvironmental Reconstructions from Marine Sediments @ AWI (AWI_Paleo)

Coverage:

Median Latitude: -44.888193 * Median Longitude: -8.655902 * South-bound Latitude: -64.555300 * West-bound Longitude: -24.248300 * North-bound Latitude: -31.950000 * East-bound Longitude: 17.364600

Date/Time Start: 1986-04-08T00:00:00 * Date/Time End: 2000-03-04T02:21:00

Minimum DEPTH, sediment/rock: 0.005 m * Maximum DEPTH, sediment/rock: 0.005 m

Event(s):

GeoB2011-1 * Latitude: -35.583333 * Longitude: 8.270000 * Date/Time: 1993-02-09T00:00:00 * Elevation: -5067.0 m * Recovery: 0.39 m * Location: Cape Basin * Campaign: * Basis: * Method/Device: Giant box corer (GKG) * Comment: Pelagic clay

GeoB2018-1 * Latitude: -34.670000 * Longitude: -6.551667 * Date/Time: 1993-02-14T00:00:00 * Elevation: -4237.0 m * Recovery: 0.15 m * Location: Brazil Basin * Campaign: * Basis: * Method/Device: MultiCorer (MUC) * Comment: Cores: 5/6 + 4/4

GeoB2019-2 * Latitude: -36.053333 * Longitude: -8.766667 * Date/Time: 1993-02-15T00:00:00 * Elevation: -3836.0 m * Recovery: 0.09 m * Location: Brazil Basin * Campaign: * Basis: * Method/Device: MultiCorer (MUC) * Comment: Cores: 5/6 + 4/4

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Method/Device	Comment
1	Event label	Event
2	Latitude of event	Latitude
3	Longitude of event	Longitude
4	Elevation of event	Elevation	m
5	DEPTH, sediment/rock	Depth sed	m			Geocode
6	Depth, top/min	Depth top	m	Esper, Oliver
7	Depth, bottom/max	Depth bot	m	Esper, Oliver
8	Brigantedinium	Brigantedinium	#	Esper, Oliver	Counting, palynology
9	Brigantedinium simplex	B. simplex	#	Esper, Oliver	Counting, palynology
10	Selenopemphix alticinctum	S. alticinctum	#	Esper, Oliver	Counting, palynology
11	Selenopemphix antarcticum	S. antarcticum	#	Esper, Oliver	Counting, palynology
12	Trinovantedinium capitatum	T. capitatum	#	Esper, Oliver	Counting, palynology
13	Echinidinium spp.	Echinidinium spp.	#	Esper, Oliver	Counting, palynology
14	Echinidinium aculeatum	E. aculeatum	#	Esper, Oliver	Counting, palynology
15	Echinidinium delicatum	E. delicatum	#	Esper, Oliver	Counting, palynology
16	Echinidinium granulatum	E. granulatum	#	Esper, Oliver	Counting, palynology
17	Echinidinium transparantum	E. transparantum	#	Esper, Oliver	Counting, palynology
18	Multispinula quanta	M. quanta	#	Esper, Oliver	Counting, palynology
19	Stelladinium stellatum	S. stellatum	#	Esper, Oliver	Counting, palynology
20	Pentapharsodinium dalei	P. dalei	#	Esper, Oliver	Counting, palynology
21	Polykrikos kofoidii	P. kofoidii	#	Esper, Oliver	Counting, palynology
22	Bitectatodinium tepikiense	B. tepikiense	#	Esper, Oliver	Counting, palynology
23	Pyxidinopsis reticulata	P. reticulata	#	Esper, Oliver	Counting, palynology
24	Dalella chathamensis	D. chathamensis	#	Esper, Oliver	Counting, palynology
25	Nematosphaeropsis labyrinthus	N. labyrinthus	#	Esper, Oliver	Counting, palynology
26	Impagidinium sp.	Impagidinium sp.	#	Esper, Oliver	Counting, palynology
27	Impagidinium aculeatum	I. aculeatum	#	Esper, Oliver	Counting, palynology
28	Impagidinium pallidum	I. pallidum	#	Esper, Oliver	Counting, palynology
29	Impagidinium paradoxum	I. paradoxum	#	Esper, Oliver	Counting, palynology
30	Impagidinium patulum	I. patulum	#	Esper, Oliver	Counting, palynology
31	Impagidinium plicatum	I. plicatum	#	Esper, Oliver	Counting, palynology
32	Impagidinium sphaericum	I. sphaericum	#	Esper, Oliver	Counting, palynology
33	Impagidinium strialatum	I. strialatum	#	Esper, Oliver	Counting, palynology
34	Impagidinium variaseptum	I. variaseptum	#	Esper, Oliver	Counting, palynology
35	Impagidinium velorum	I. velorum	#	Esper, Oliver	Counting, palynology
36	Protoceratium reticulatum long	P. reticulatum long	#	Esper, Oliver	Counting, palynology
37	Protoceratium reticulatum short	P. reticulatum short	#	Esper, Oliver	Counting, palynology
38	Operculodinium israelianum long	O. israelianum long	#	Esper, Oliver	Counting, palynology
39	Operculodinium israelianum short	O. israelianum short	#	Esper, Oliver	Counting, palynology
40	Operculodinium janduchenei	O. janduchenei	#	Esper, Oliver	Counting, palynology
41	Spiniferites	Spiniferites	#	Esper, Oliver	Counting, palynology
42	Spiniferites elongatus	S. elongatus	#	Esper, Oliver	Counting, palynology
43	Spiniferites mirabilis	S. mirabilis	#	Esper, Oliver	Counting, palynology
44	Spiniferites pachydermus	S. pachydermus	#	Esper, Oliver	Counting, palynology
45	Spiniferites ramosus	S. ramosus	#	Esper, Oliver	Counting, palynology
46	Dinoflagellate cyst indeterminata	Dinofl indet	#	Esper, Oliver	Counting, palynology
47	Dinoflagellate cyst reworked	Dinofl cyst rew	#	Esper, Oliver	Counting, palynology
48	Sample mass	Samp m	g	Esper, Oliver	see reference(s)
49	Sample volume	Samp vol	l	Esper, Oliver	see reference(s)
50	Slide volume	slide vol	ml	Esper, Oliver	see reference(s)

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

1440 data points

Data

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

1 Event	2 Latitude	3 Longitude	4 Elevation [m]	5 Depth sed [m]	7 Depth bot [m]	8 Brigantedinium [#]	9 B. simplex [#]	10 S. alticinctum [#]	11 S. antarcticum [#]	12 T. capitatum [#]	13 Echinidinium spp. [#]	14 E. aculeatum [#]	15 E. delicatum [#]	17 E. transparantum [#]	18 M. quanta [#]	19 S. stellatum [#]	20 P. dalei [#]	22 B. tepikiense [#]	23 P. reticulata [#]	24 D. chathamensis [#]	25 N. labyrinthus [#]	26 Impagidinium sp. [#]	27 I. aculeatum [#]	28 I. pallidum [#]	29 I. paradoxum [#]	30 I. patulum [#]	31 I. plicatum [#]	32 I. sphaericum [#]	33 I. strialatum [#]	34 I. variaseptum [#]	35 I. velorum [#]	36 P. reticulatum long [#]	37 P. reticulatum short [#]	38 O. israelianum long [#]	39 O. israelianum short [#]	40 O. janduchenei [#]	41 Spiniferites [#]	42 S. elongatus [#]	43 S. mirabilis [#]	44 S. pachydermus [#]	45 S. ramosus [#]	46 Dinofl indet [#]	47 Dinofl cyst rew [#]	48 Samp m [g]	49 Samp vol [l]	50 slide vol [ml]
GeoB2011-1	-35.5833	8.2700	-5067	0.005	0.01	1	0	0	0	12	0	0	0	0	0	0	1	0	0	1	25	0	12	1	9	1	0	10	5	10	0	338	0	1	0	1	47	0	31	9	64	1	5	9.0961	0.0005	0.05
GeoB2018-1	-34.6700	-6.5517	-4237	0.005	0.01	0	0	0	0	0	0	0	0	0	0	0	0	0	2	0	0	24	25	0	3	2	0	5	3	13	0	0	0	0	0	0	0	0	0	0	0	2	0	2.0000	0.0005	0.50
GeoB2019-2	-36.0533	-8.7667	-3836	0.005	0.01	27	1	0	0	0	0	11	0	0	0	0	0	0	3	1	8	45	21	0	10	1	0	6	4	71	0	3	0	0	0	0	3	0	0	0	0	6	0	2.0010	0.0005	0.50
GeoB2021-4	-36.8350	-14.4050	-3576	0.005	0.01	8	1	0	0	0	0	0	0	0	0	0	0	0	9	1	2	27	5	1	7	0	0	4	1	41	0	0	0	0	1	0	0	0	0	0	0	11	0	2.0050	0.0005	0.50
GeoB2022-3	-34.4350	-20.9083	-4016	0.005	0.01	19	1	0	0	0	0	0	0	0	0	0	0	1	5	0	5	13	14	1	11	8	0	5	6	33	0	3	0	0	1	0	0	0	0	0	0	2	0	2.0020	0.0005	0.50
GeoB6407-2	-42.0448	-19.5000	-3384	0.005	0.01	273	8	1	7	0	1	0	0	0	0	0	0	0	9	1	42	16	8	1	4	0	0	9	0	5	0	10	0	0	1	0	2	0	0	0	0	2	0	10.0000	0.0005	0.20
GeoB6409-2	-44.5068	-21.7168	-4296	0.005	0.01	920	0	1	45	0	1	0	0	0	0	0	0	0	1	6	131	40	10	3	4	1	0	7	1	2	0	30	2	0	0	0	1	0	0	0	0	5	0	5.4420	0.0005	0.10
GeoB6413-4	-44.2068	-17.3400	-3768	0.005	0.01	1170	0	1	17	0	2	0	0	0	1	0	1	0	1	3	108	23	8	8	4	1	0	5	2	1	0	18	0	0	0	0	0	0	0	0	0	3	0	10.0060	0.0005	0.10
GeoB6414-1	-43.9992	-13.0697	-3830	0.005	0.01	303	0	0	5	0	0	0	0	0	1	0	0	0	3	1	26	8	1	0	0	1	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	4	0	9.9980	0.0005	0.05
GeoB6416-2	-39.9545	-18.1633	-3525	0.005	0.01	132	0	0	0	0	1	0	0	0	0	0	1	0	6	3	91	33	20	0	14	2	0	5	2	43	0	20	1	0	6	0	1	0	1	0	0	9	1	10.0160	0.0005	0.40
GeoB6417-2	-39.0933	-21.0417	-4024	0.005	0.01	47	1	0	0	0	0	0	0	0	0	0	0	0	7	4	85	69	49	0	17	2	2	11	16	38	0	80	0	1	8	0	3	0	0	0	0	12	0	10.0230	0.0005	0.50
GeoB6418-3	-38.4265	-21.5350	-4126	0.005	0.01	119	0	0	0	0	0	0	0	0	0	0	0	0	11	2	146	81	72	2	12	3	1	12	8	105	0	118	0	0	5	0	1	0	0	0	0	15	0	10.0020	0.0005	0.50
GeoB6420-2	-37.1583	-22.1483	-3998	0.005	0.01	207	0	2	0	0	0	0	0	0	0	0	0	0	9	0	50	77	31	0	18	4	3	12	9	177	1	36	1	0	6	0	0	0	1	0	0	12	0	10.0040	0.0005	0.50
GeoB6421-1	-36.4483	-22.4450	-4216	0.005	0.01	66	0	0	0	0	0	0	0	0	0	0	1	0	11	0	34	42	46	2	17	4	1	15	9	29	0	14	0	0	3	0	1	0	0	0	0	7	0	10.0110	0.0005	0.20
GeoB6422-5	-35.7073	-22.7333	-3972	0.005	0.01	84	0	1	0	0	0	0	0	0	0	0	0	0	30	7	62	61	60	3	33	10	1	9	19	142	0	24	2	0	4	0	1	0	1	0	0	6	0	10.0060	0.0005	0.50
GeoB6425-1	-33.8250	-23.5875	-4352	0.005	0.01	2	0	0	0	0	0	0	0	0	0	0	0	0	11	0	9	34	77	0	27	5	2	21	32	44	0	4	0	0	5	0	1	0	0	0	0	3	0	9.8360	0.0005	0.20
GeoB6427-1	-33.1822	-24.2477	-4491	0.005	0.01	0	0	0	0	0	0	0	0	0	0	0	0	1	7	0	32	80	88	0	19	2	4	36	58	51	0	8	1	0	1	0	0	0	1	0	0	18	0	6.9760	0.0005	0.50
GeoB6429-1	-31.9500	-24.2483	-4335	0.005	0.01	5	0	0	0	0	0	0	0	0	0	0	0	0	21	4	18	30	105	0	33	1	2	21	28	20	0	0	0	0	1	0	1	0	1	0	0	6	0	9.9900	0.0005	0.40
PS1451-2	-64.5553	5.4563	-3593	0.005	0.01	0	0	0	6	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1.6480	0.0005	0.40
PS1459-4	-64.5107	3.1903	-2083	0.005	0.01	3	0	0	76	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1.7130	0.0005	0.40
PS1460-1	-63.8807	3.9917	-4005	0.005	0.01	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1.3740	0.0005	0.40
PS1585-1	-64.5157	3.1163	-2079	0.005	0.01	2	0	0	57	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1.5440	0.0005	0.40
PS1650-1	-53.7450	3.8110	-1838	0.005	0.01	33	1	0	105	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.5450	0.0005	0.40
PS1651-2	-53.6405	3.8443	-2089	0.005	0.01	39	1	0	87	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	2	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.6640	0.0005	0.40
PS1652-1	-53.6702	5.0838	-1960	0.005	0.01	15	0	0	18	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0.4820	0.0005	0.40
PS1653-2	-52.2075	9.4880	-3202	0.005	0.01	19	0	0	8	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	1.0490	0.0005	0.40
PS1654-1	-50.1623	5.7663	-3763	0.005	0.01	206	36	0	60	0	0	0	0	0	0	0	0	0	0	0	8	0	1	0	4	0	0	1	1	2	0	0	0	0	1	0	0	0	0	0	0	1	0	2.0000	0.0005	0.10
PS2230-1	-34.7532	17.3646	-2578	0.005	0.01	141	1	8	0	26	9	0	14	8	15	4	1	2	12	1	13	0	10	0	6	2	1	3	2	0	1	1002	15	1	1	0	340	5	3	16	69	8	2	1.9990	0.0005	0.10
PS2366-1	-51.0098	-5.9565	-2114	0.005	0.01	219	0	2	107	0	0	0	0	0	0	0	0	0	2	0	1	0	1	0	1	0	0	0	0	0	0	2	0	0	0	0	0	0	0	0	0	0	0	1.9960	0.0005	0.10
PS2367-1	-49.1289	-6.0043	-3525	0.005	0.01	166	18	0	19	0	0	0	0	0	0	0	1	0	1	0	4	2	1	0	1	0	0	1	0	2	0	5	0	0	0	0	0	0	0	0	0	4	0	2.0000	0.0005	0.10
PS2372-1	-53.9961	-6.0025	-2415	0.005	0.01	168	4	0	59	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	3	0	0	0	0	0	0	0	0	0	0	0	0	0	1.9990	0.0005	0.20
PS2376-2	-48.5667	-6.0000	-3657	0.005	0.01	308	65	0	56	0	0	0	0	0	0	0	0	0	1	0	1	0	0	0	1	1	0	3	1	1	9	2	0	0	0	0	0	0	0	0	0	0	0	2.0000	0.0005	0.10