Geographic distribution of dinoflagellate cysts in surface sediments

DOI

Dinoflagellate cysts are useful for reconstructing upper water conditions. For adequate reconstructions detailed information is required about the relationship between modern day environmental conditions and the geographic distribution of cysts in sediments. This Atlas summarises the modern global distribution of 71 organicwalled dinoflagellate cyst species. The synthesis is based on the integration of literature sources together with data of 2405 globally distributed surface sediment samples that have been preparedwith a comparable methodology and taxonomy. The distribution patterns of individual cyst species are being comparedwith environmental factors that are knownto influence dinoflagellate growth, gamete production, encystment, excystment and preservation of their organic-walled cysts: surface water temperature, salinity, nitrate, phosphate, chlorophyll-a concentrations and bottom water oxygen concentrations. Graphs are provided for every species depicting the relationship between seasonal and annual variations of these parameters and the relative abundance of the species. Results have been compared with previously published records; an overview of the ecological significance as well as information about the seasonal production of each individual species is presented. The relationship between the cyst distribution and variation in the aforementioned environmental parameters was analysed by performing a canonical correspondence analysis. All tested variables showed a positive relationship on the 99% confidence level. Sea-surface temperature represents the parameter corresponding to the largest amount of variance within the dataset (40%) followed by nitrate, salinity, phosphate and bottom-water oxygen concentration, which correspond to 34%, 33%, 25% and 24% of the variance, respectively. Characterisations of selected environments as well as a discussion about how these factors could have influenced the final cyst yield in sediments are included.

Identifier
DOI https://doi.org/10.1594/PANGAEA.818280
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Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.818280
Provenance
Creator Zonneveld, Karin A F; Marret, Fabienne; Versteegh, Gerard J M; Bogus, Kara A; Bonnet, Sophie; Bouimetarhan, Ilham; Crouch, Erica; de Vernal, Anne; Elshanawany, Rehab; Edwards, Lucy; Esper, Oliver; Forke, Sven; Grøsfjeld, Kari; Henry, Maryse; Holzwarth, Ulrike; Kielt, Jean-Francois; Kim, So-Young; Ladouceur, Stéphanie; Ledu, David; Chen, Liang; Limoges, Audrey; Londeix, Laurent; Lu, S-H; Mahmoud, Magdy S; Marino, Gianluca; Matsouka, Kazumi; Matthiessen, Jens; Mildenhal, D C; Mudie, Peta J; Neil, Helen L; Pospelova, Vera; Qi, Yuzao; Radi, Taoufik; Richerol, Thomas; Rochon, André; Sangiorgi, Francesca; Solignac, Sandrine; Turon, Jean-Louis; Verleye, Thomas; Wang, Yan; Wang, Zhaohui; Young, Marty
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2013
Funding Reference German Science Foundation, 5472008
Rights Creative Commons Attribution 3.0 Unported; https://creativecommons.org/licenses/by/3.0/
OpenAccess true
Representation
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 230152 data points
Discipline Earth System Research
Spatial Coverage (-179.500W, -69.310S, 179.990E, 81.120N)