Counts of dinoflagellate cysts and foraminifera from drifting traps during Maria S. Merian cruise MSM79 ...

During the active upwelling in November 2018 a 7-day drifting trap survey has been performed in an active upwelling cell off Cape Blanc. This survey is performed to extend information about the production, succession and transport of dinoflagellate cysts (dinocysts) and planktonic foraminifera as we...

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Bibliographic Details
Main Authors: Zonneveld, Karin A F, Meiland, Julie, Donner, Barbara, Versteegh, Gerard J M
Format: Dataset
Language:English
Published: PANGAEA 2021
Subjects:
Online Access:https://dx.doi.org/10.1594/pangaea.931348
https://doi.pangaea.de/10.1594/PANGAEA.931348
Description
Summary:During the active upwelling in November 2018 a 7-day drifting trap survey has been performed in an active upwelling cell off Cape Blanc. This survey is performed to extend information about the production, succession and transport of dinoflagellate cysts (dinocysts) and planktonic foraminifera as well as to study the excystment of dinoflagellate cysts in the upper water column. Organic- and calcareous-walled dinoflagellate cysts and planktonic foraminifera have been collected on 7 successive days with drifting traps at 100 m, 200 m, and 400 m water depth. The 7-day survey covered a successive change from active upwelling toward stratified conditions. Highest production of organic dinocysts and planktonic foraminifera were observed under active upwelling conditions and decreased drastically towards the end of the survey. Calcareous dinocysts appeared later during upwelling relaxation. Collected cytoplasm bearing (full) dinocysts and foraminifera were produced in the water column above the traps (<100 m ...