Dinoflagellate cyst species composition of recent surface samples (Appendix), supplement to: Matthiessen, Jens (1995): Distribution patterns of dinoflagellate cysts and other organic-walled microfossils in recent Norwegain-Greenland Sea sediments. Marine Micropaleontology, 24(3-4), 307-334

DOI

Dinoflagellate cysts and other organic-walled microfossils have been studied in recent surface sediments from the entire Norwegian-Greenland Sea. More than 30 taxa have been recognized, of which only few show a distinct distribution pattern, and allow description of four assemblages. The occurrence of most taxa is related to the relatively warmer waters of the Norwegian Sea. Algidaspaeridium? minutum s.1., Brigantedinium simplex and Impagidinium? pallidum are the only species showing a preference for colder water masses. Two species, I.? pallidum and Nematosphaeropsis labyrinthus are mainly restricted to the oceanic environment, whereas the other species have also been reported from neritic environments in previous studies. Due to the limited knowledge of the ecological and sedimentological factors influencing the occurrence of dinoflagellate cysts in oceanic environments, their distribution in recent sediments can be only related to surface water masses in a broad sense.Although the distribution of assemblages correlates with specific surface water masses, comparison with assemblages recovered from sediment traps deployed basinwide in the Norwegian-Greenland Sea (Dale and Dale, 1992) revealed some major discrepancies in species composition and percentage abundances. The differences cannot be explained with certainty at the moment, although there is some evidence that transport of dinoflagellate cysts and other fossilizable microplankton in water masses by currents, in sea-ice and sediments may modify the assemblages found in recent oceanic surface sediments from the Norwegian-Greenland Sea.

Identifier
DOI https://doi.org/10.1594/PANGAEA.733497
Related Identifier https://doi.org/10.1016/0377-8398(94)00016-G
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.733497
Provenance
Creator Matthiessen, Jens
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 1995
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Supplementary Dataset; Dataset
Format text/tab-separated-values
Size 1972 data points
Discipline Earth System Research
Spatial Coverage (-21.112W, 62.524S, 15.749E, 80.020N); Atlantic Ocean; Norwegian-Greenland Sea/off Iceland; Norwegian Sea; Arctic Ocean; Iceland Sea; Fram Strait; Voring Plateau; Greenland Sea; Greenland Shelf; Hovgaard Fracture Zone; Jan Mayen Fracture Zone; Kolbeinsey Ridge
Temporal Coverage Begin 1984-09-01T00:00:00Z
Temporal Coverage End 1989-06-05T00:00:00Z