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Esper, Oliver; Zonneveld, Karin A F (2002): Abundance of organic-walled dinoflagellate cysts in surface sediments from the Atlantic sector of the Southern Ocean (Appendix 2) [dataset]. PANGAEA,, Supplement to: Esper, O; Zonneveld, KAF (2002): Distribution of organic-walled dinoflagellate cysts in surface sediments of the Southern Ocean (eastern Atlantic sector) between the Subtropical Front and the Weddell Gyre. Marine Micropaleontology, 46(1-2), 177-208,

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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
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
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: M23/1 * Basis: Meteor (1986) * 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: M23/1 * Basis: Meteor (1986) * 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: M23/1 * Basis: Meteor (1986) * Method/Device: MultiCorer (MUC) * Comment: Cores: 5/6 + 4/4
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1Event labelEvent
2Latitude of eventLatitude
3Longitude of eventLongitude
4Elevation of eventElevationm
5DEPTH, sediment/rockDepth sedmGeocode
6Depth, top/minDepth topmEsper, Oliver
7Depth, bottom/maxDepth botmEsper, Oliver
8BrigantediniumBrigantedinium#Esper, OliverCounting, palynology
9Brigantedinium simplexB. simplex#Esper, OliverCounting, palynology
10Selenopemphix alticinctumS. alticinctum#Esper, OliverCounting, palynology
11Selenopemphix antarcticumS. antarcticum#Esper, OliverCounting, palynology
12Trinovantedinium capitatumT. capitatum#Esper, OliverCounting, palynology
13Echinidinium spp.Echinidinium spp.#Esper, OliverCounting, palynology
14Echinidinium aculeatumE. aculeatum#Esper, OliverCounting, palynology
15Echinidinium delicatumE. delicatum#Esper, OliverCounting, palynology
16Echinidinium granulatumE. granulatum#Esper, OliverCounting, palynology
17Echinidinium transparantumE. transparantum#Esper, OliverCounting, palynology
18Multispinula quantaM. quanta#Esper, OliverCounting, palynology
19Stelladinium stellatumS. stellatum#Esper, OliverCounting, palynology
20Pentapharsodinium daleiP. dalei#Esper, OliverCounting, palynology
21Polykrikos kofoidiiP. kofoidii#Esper, OliverCounting, palynology
22Bitectatodinium tepikienseB. tepikiense#Esper, OliverCounting, palynology
23Pyxidinopsis reticulataP. reticulata#Esper, OliverCounting, palynology
24Dalella chathamensisD. chathamensis#Esper, OliverCounting, palynology
25Nematosphaeropsis labyrinthusN. labyrinthus#Esper, OliverCounting, palynology
26Impagidinium sp.Impagidinium sp.#Esper, OliverCounting, palynology
27Impagidinium aculeatumI. aculeatum#Esper, OliverCounting, palynology
28Impagidinium pallidumI. pallidum#Esper, OliverCounting, palynology
29Impagidinium paradoxumI. paradoxum#Esper, OliverCounting, palynology
30Impagidinium patulumI. patulum#Esper, OliverCounting, palynology
31Impagidinium plicatumI. plicatum#Esper, OliverCounting, palynology
32Impagidinium sphaericumI. sphaericum#Esper, OliverCounting, palynology
33Impagidinium strialatumI. strialatum#Esper, OliverCounting, palynology
34Impagidinium variaseptumI. variaseptum#Esper, OliverCounting, palynology
35Impagidinium velorumI. velorum#Esper, OliverCounting, palynology
36Protoceratium reticulatum longP. reticulatum long#Esper, OliverCounting, palynology
37Protoceratium reticulatum shortP. reticulatum short#Esper, OliverCounting, palynology
38Operculodinium israelianum longO. israelianum long#Esper, OliverCounting, palynology
39Operculodinium israelianum shortO. israelianum short#Esper, OliverCounting, palynology
40Operculodinium janducheneiO. janduchenei#Esper, OliverCounting, palynology
41SpiniferitesSpiniferites#Esper, OliverCounting, palynology
42Spiniferites elongatusS. elongatus#Esper, OliverCounting, palynology
43Spiniferites mirabilisS. mirabilis#Esper, OliverCounting, palynology
44Spiniferites pachydermusS. pachydermus#Esper, OliverCounting, palynology
45Spiniferites ramosusS. ramosus#Esper, OliverCounting, palynology
46Dinoflagellate cyst indeterminataDinofl indet#Esper, OliverCounting, palynology
47Dinoflagellate cyst reworkedDinofl cyst rew#Esper, OliverCounting, palynology
48Sample massSamp mgEsper, Oliversee reference(s)
49Sample volumeSamp vollEsper, Oliversee reference(s)
50Slide volumeslide volmlEsper, Oliversee reference(s)
1440 data points

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