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Surya Eldo Virma Roza

Doctoral Students


Micropaleontology - Paleoceanography


+49 421218659 63



MARUM II, 1050

Surya Eldo Virma Roza

Scientific Interest

  • Marine Palynology
  • Micropaleontology
  • Paleobiology
  • Ecology
  • Paleoceanography

Curriculum Vitae

since 2020

MARUM - Uni­versität Bre­men, Ger­many

Ph.D. stu­dent - Mi­cro­pa­le­on­tolgy (Div. Mar­ine Pa­lyn­o­logy)  

2017 -2019

Lud­wig-Max­imili­ans-Uni­versität München, Ger­many

Mas­ter of Sci­ence in Geo- and Pa­leo­bi­o­logy

2011 -2015

Uni­versitas Pad­jadjaran, Bandung - In­done­sia

Bach­elor of Sci­ence in Geo­logy

Thesis Committee:

  • Prof. Dr. Karin Zonneveld
  • Dr. Karl-Heinz Baumann
  • Prof. Dr. Gesine Mollenhauer
  • Dr. Marina Rillo
  • Dr. Gerard Versteegh


Inter-annual variability of the upwelling system off Cap Blanc studied from 18 years time series export flux of dinoflagellate cyst

The upwelling system off Cap Blanc forms one of the most productive region in the world. Permanent upwelling bearing nutrient rich water and mineral dust input from Sahara fertilize this coastal area as such, it becomes a key area in the global carbon cycle. In the scope of current global climate change, it is crucial to obtain insight into the effects of this change on the Cap Blanc ecosystem. This can be achieved by monitoring the production and association composition of key organisms of this ecosystem representing different trophic levels.

Dinoflagellates as marine planktonic organisms are a useful tool to study the dynamic of upwelling system off Cap Blanc because they consist of both photo- and heterotrophic organisms. Here we studied the export production of dinoflagellate cysts over an 18 years period by analyzing materials collected by a sediment trap located under the upwelling filament track of the major Cap Blanc upwelling cell at a depth ~1300m.

Oceanographic Settings
Research area and selected type of dinoflagellate cysts with their ecological signal.
© Eldo Roza


Title Co-author Conference

Location & Date

Particulate organic matter export flux and ecosystem change in the Cape Blanc upwelling region during the last 18 years reflected by dinoflagellate cysts: a sediment trap study 

Gerard J. M. Versteegh, Gerhard Fischer, and Karin A. F. Zonneveld

Ocean Floor Symposium

"Understanding element fluxes - processes and budgets"

Marum Bremen, Germany; 9 - 12 October 2022

Seasonal, annual, and multi-annual variability of dinoflagellate cyst export production in the upwelling area off Cap Blanc based on 18 years sediment trap time series - Oral Presentaion Gerard J. M. Versteegh, Karin A. F. Zonneveld 12th International Conference on Modern and Fossil Dinoflagellates(DINO12)

Las Palmas De Gran Canaria, Spain; 4 - 8 July 2022

18 years of dinoflagellate cyst export flux deposition recovered from a sediment trap in the upwelling region off Cape Blanc (NW Africa) - Poster Gerard J. M. Versteegh, Karin A. F. Zonneveld 2nd Status Conference Research Vessels 2022 ICBM Oldenburg, Germany (online); 22 - 23 February 2022 
Paleoecology of the Late Triassic marine biota from the Cassian Formation - Oral Presentation Alexander Nützel

"Paleo & Life" 90th Annual Meeting of the Paleontological Society


LMU Munich, Germany; 15 - 19 September 2019
Biostratigraphy correlation of Jatiluhur, Kalapanunggal, and Subang Formations in northern part of Bogor Through - Oral Presentation Lia Jurnaliah, Abdurrokhim GEOSEA XIV Congress and 45th IAGI Annual Convention 2016 (GIC 2016) Bandung, Indonesia; 10 - 13 October 2016


Field courses and Expedition

Nov - Dec 2021

Research cruise to Mauritania upwelling region

R.V. Maria S. Merian

July 2018

Geology field work in the Posidonia Shale, Germany

June 2018

Paleontology field work in the Alpine's Dolomite, Italy

June 2015

Geology field work in the Subduction Complex of Central Java, Indonesia

 2014 - 2015 Surface geological mapping in West Java, indonesia