Geographic distribution of dinoflagellate cysts in surface sediments

• Main Authors: 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
• Format: Dataset
• Language: English
• Published: PANGAEA 2013
• Subjects: Alexandrium tamarense; Ataxiodinium choane; Bitectatodinium spongium; Bitectatodinium tepikiense; Brigantedinium spp.; Calculated; Caspidinium rugosum; Center for Marine Environmental Sciences; Chlorophyll a; interpolated; Cryodinium meridianum; Dalella chathamensis; DEPTH; sediment/rock; Dinoflagellate cyst; reworked; Dissolved oxygen concentration; water; Dubridinium caperatum; Echinidinium aculeatum; Echinidinium bispiniformum; Echinidinium delicatum; Echinidinium granulatum; Echinidinium karaense; Echinidinium spp.; Echinidinium transparantum; Glaphyrocysta semitecta; Gymnodinium catenatum; Gymnodinium nolleri; Impagidinium aculeatum; Impagidinium caspienense; Impagidinium pallidum; Impagidinium paradoxum; Impagidinium patulum; Impagidinium plicatum; Impagidinium sphaericum; Impagidinium strialatum; Impagidinium variaseptum; Impagidinium velorum; Islandinium cezare; Islandinium minutum; LATITUDE; Lejeunecysta oliva; Lejeunecysta sabrina; Lingulodinium machaerophorum; LONGITUDE; MARUM; Nematosphaeropsis labyrinthus; Oliva; Arctic
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.818280; https://doi.org/10.1594/PANGAEA.818280

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.