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(Table 2) Dinoflagellate cysts in surface sediment samples of METEOR cruises M20/2, M23/1, M34/2 and M34/2

Dataset homepage

Citation

Zonneveld K A F, Hoek R P, Brinkhuis H, Willems H (2001). (Table 2) Dinoflagellate cysts in surface sediment samples of METEOR cruises M20/2, M23/1, M34/2 and M34/2. PANGAEA - Publishing Network for Geoscientific and Environmental Data. Occurrence dataset https://doi.org/10.1594/pangaea.85166 accessed via GBIF.org on 2022-06-25.

Description

The organic walled cyst content of 41 surface sediment samples from the south-eastern South Atlantic Ocean have been studied to create a dataset that can be used for palaeoceanographic reconstructions. In order to obtain insight into which environmental factors influence the distribution of individual cyst species, the cyst associations have been compared with oceanographic characteristics of the overlying water masses, i.e. temperature, salinity, density and stratification gradients. The associations and relationships have been established by visual examination of the dataset and the multivariate ordination techniques, Detrended Correspondence Analysis and Canonical Correspondence Analysis. Special attention has been given to the factors of transport and preservation of the cysts. Five associations have been recognised as being characteristic of (1) areas influenced by coastal upwelling and/or river outflow, (2) open ocean, (3) Agulhas Current and southern Benguela Current, (4) Benguela Current and (5) Walvis Bay, shelf break area. The factors dominant in influencing either directly or indirectly the cyst distributions appear to be the stratification in the upper 50 m of the water column, nutrient concentration and seasonality. Variations in sea surface temperatures and salinities have only minor effect on cyst distribution.

Taxonomic Coverages

  1. Protozoa
    rank: kingdom

Geographic Coverages

Event: GeoB1703-3, off Kunene ; Event: GeoB1704-2, Walvis Ridge ; Event: GeoB1705-2, Walvis Ridge ; Event: GeoB1706-1, Walvis Ridge ; Event: GeoB1707-2, Walvis Ridge ; Event: GeoB1710-1, Namibia continental slope ; Event: GeoB1711-6, Namibia continental slope ; Event: GeoB1712-1, Namibia continental slope ; Event: GeoB1713-5, Namibia continental slope ; Event: GeoB1714-1, Namibia Continental Margin ; Event: GeoB1715-3, Namibia continental slope ; Event: GeoB1716-1, Namibia continental slope ; Event: GeoB1717-2, Namibia Continental Margin ; Event: GeoB1718-1, Namibia Continental Margin ; Event: GeoB1719-4, Namibia continental slope ; Event: GeoB1720-4, Namibia Continental Margin ; Event: GeoB1721-4, Namibia Continental Margin ; Event: GeoB1722-3, Namibia Continental Margin ; Event: GeoB1724-3, Namibia continental slope ; Event: GeoB1728-3, Namibia Continental Margin ; Event: GeoB1729-2, Namibia continental slope ; Event: GeoB2001-1, South African margin ; Event: GeoB2007-1, Cape Basin ; Event: GeoB2008-1, Cape Basin ; Event: GeoB2009-1, Cape Basin ; Event: GeoB2011-1, Cape Basin ; Event: GeoB3601-1, Southern Cape Basin ; Event: GeoB3602-2, Southern Cape Basin ; Event: GeoB3603-1, Southern Cape Basin ; Event: GeoB3604-4, Southern Cape Basin ; Event: GeoB3605-1, Southern Cape Basin ; Event: GeoB3606-2, Northern Cape Basin ; Event: GeoB3607-1, Northern Cape Basin ; Event: GeoB3608-1, Northern Cape Basin ; Event: GeoB3717-1, Northern Cape Basin ; Event: GeoB3718-8, Northern Cape Basin ; Event: GeoB3719-2, Northern Cape Basin ; Event: GeoB3720-1, Northern Cape Basin ; Event: GeoB3721-4, Northern Cape Basin ; Event: GeoB3723-2, Northern Cape Basin ; Event: GeoB3724-1, Northern Cape Basin ;

Bibliographic Citations

Contacts

Karin A F Zonneveld
originator
Ramses P Hoek
originator
Henk Brinkhuis
originator
Helmut Willems
originator
metadata author
PANGAEA - Data Publisher for Earth & Environmental Science
email: info@pangaea.de
homepage: https://www.pangaea.de
administrative point of contact
PANGAEA - Data Publisher for Earth & Environmental Science
email: info@pangaea.de
homepage: http://www.pangaea.de
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