Dr. Catarina Guerreiro
Dr. Catarina Guerreiro
Phone: +49 421 218 - 99501
Fax: +49 421 218 - 65219
Email: catarina.guerreiro@uni-bremen.de

Department of Geosciences
University of Bremen
GEO Building, Room 2580
Klagenfurter Strasse
28359 Bremen

Scientific activity
At Present, I am investigating the potential of coccolithophores as indicators of ocean-productivity variability induced by atmospheric trans-Atlantic fluxes of Saharan dust, in the context of the ongoing projects DUSTRAFFIC and TRAFFIC (NIOZ/MARUM). I am interested in calibrating the coccolithophores as paleoceanographic and paleoclimatic proxies, by investigating their productivity, ecological preferences and fluxes in close relation to the oceanographic and meteorological dynamics prevailing in the Equatorial North Atlantic Ocean (12ºN), addressing the effects of taphonomy along the transformation from living biocoenosis (primary signal) to sediment thanatocoenosis.
Earlier, my line of research was focused on the (paleo)ecology of coccolithophores from shallower environments, aiming to investigate the distribution and productivity of oceanic (K-selected) vs. coastal (r-selected) taxa along the coastal-neritic-oceanic transition, and their potential as paleoceanographic and hydrodynamical tracers of physical processes, using as case study the central Portuguese margin and the remarkable submarine canyons dissecting this area, i.e. Nazaré Canyon and Lisbon-Setúbal Canyon.

Participation in projects
• DUSTTRAFFIC/TRAFFIC (Transatlantic Fluxes of Saharan Dust), since June 2014; http://www.nwo.nl/en/research-and-results/research-project /66/230017516... and http://www.nioz.nl/dust.
• HERMIONE (Hotspot Ecosystem Research and Man's Impact On European Seas), 2009-2012; http://www.eu-hermione.net/
• Cd-ToxCoN (Cadmium induced toxicity/tolerance/productivity on neritic Coccolithophores), 2010-2012.
• HERMES (Hotspot Ecosystem Research on the Margins of European Seas), 2008 – 2009; http://www.southampton.ac.uk/business/success_stories/engineering_scienc...
• DEEPCO (Deep Sedimentary Conduits of the West-Iberian Margin), 2006 – 2009;
• BIOFUN (Biodiversity and ecosystem functioning in contrasting southern European deep-sea environment), 2009;
• ECOIS (Estuarine Contributions to Inner Shelf dynamics), 2006 – 2007.
• EUROSTRATAFORM (European Margin Strata Formation), 2004;
• CANAL (Comparative (paleo)environmental analysis of oceanic and coastal domains, over the last 20 My, based on calcareous nannoplankton), 2004 -2005;
• ENVI-CHANGES (Late Quaternary Environmental Changes from Estuary and Shelf Sedimentary Record), 2003.

Ship expeditions
• DUSTTRAFFIC 2016, RRV JAMES COOK (JC134). CTD profiling, collection and filtering of seawater and surface sediment samples along a transatlantic transect covering the equatorial North Atlantic
• ADOMIS 2015, R/V Maria S. MERION (MSM48). CTD profiling, collection and filtering of seawater and surface sediment samples from the subtropical North Atlantic Ocean - Madeira Abyssal Plain and the
region offshore Cape Blanc (Mauritania).
• HERMIONE 2010, NRP ALMIRANTE GAGO COUTINHO. CTD profiling, seawater sampling and filtering from the Nazaré
canyon region (W off Portugal).
• BIOFUN 2009, R/V PELAGIA. CTD profiling, boxcore and multicore sediment sampling, plankton sampling and filtering.
• HERMES 2007, 2008, NRP D. CARLOS I. CTD profiling and seawater sampling and filtering from the Nazaré canyon region.
• DEEPCO 2008, NRP ALMIRANTE GAGO COUTINHO. Collection of high depth sediment core samples and geophysical data from the Porto and Aveiro submarine canyons (NW off Portugal).
• DEEPCO 2007, NRP ALMIRANTE GAGO COUTINHO. Collection of high-resolution geophysical data from the Porto and Aveiro submarine canyons, using sub-bottom profiler, magnetometer, multibeam sonar, Side Scan Sonar, seismic reflection systems Boomer and Sparker.
• DEEPCO 2006, NRP D. CARLOS I. Collection of surface sediment samples from the Nazaré canyon and adjacent continental shelf and slope.
• EUROSTRATAFORM 2004, NRP D. CARLOS I. CTD profiling and seawater sampling and filtering.

• GUERREIRO, C., , Baumann, K.-H., Brummer, G.-J. A., Fischer, G., Korte, L. F., Merkel, U., Sá, C., de Stigter, H., and Stuut, J.-B. W., 2017. Coccolithophore fluxes in the open tropical North Atlantic: influence of the Amazon river and of Saharan dust deposition, Biogeosciences Discuss., https://doi.org/10.5194/bg-2017-216.
• Korte, L., Brummer, G.-J., van der Does, M., GUERREIRO, C., Hennekam, R., van Hateren, J. A., Jong, D., Munday, C. I., Schouten, S., Stuut, J-B., 2017. Downward particle fluxes of biogenic matter and Saharan dust across the equatorial North Atlantic. Atmos. Chem. Phys. 17, 1–17, www.atmos-chem-phys.net/17/1/2017.
• Jordan, R.W., Abe, K., Cruz, J., Eriksen, R., GUERREIRO, C., Hagino, K., Heldal, M., Hernandez-Becerril, D.U., Malinverno, E., Nishida, S., Patil, S.M, Süpraha, L., Thomsen, H.A., Triantaphyllou, M.V., Young, J.R., (2016). Observations on the morphological diversity and distribution of two silicious nannoplankton genera, Hyalolithus and Petasaria. Micropaleontology 61 (6), 439-455.
• GUERREIRO, C., Cachão, M., Pawlowsky-Glahn, V., Egozcue, J.J. Oliveira, A., Rodrigues, A. (2015b). Compositional Data Analysis (CODA) as a tool to study the (paleo)ecology of coccolithophores from the coastal-neritic settings off central Portugal. Sedimentary Geology 319, 34-46.
• GUERREIRO, C., De Stigter, H., Cachão, M., Oliveira, A., Rodrigues, A. (2015a). Coccoliths from recent sediments of the Central Portuguese Margin: taphonomical and ecological inferences. Marine Micropaleontology 114, 55-68.
• GUERREIRO, C., Sá, C., De Stigter, H., Oliveira, A., Cachão, M., Borges, C., Cros, L., Quaresma, L., Santos, A.I., Fortuño, J.M., Rodrigues, A. (2014). Influence of the Nazaré Canyon, central Portuguese margin, on late winter coccolithophore assemblages. Deep Sea Research Part II: Topical Studies in Oceanography 104, 335-358.
• GUERREIRO, C., Oliveira, A., De Stigter, H., Cachão, M., Sá, C., Borges, C., Cros, L., Quaresma, L., Santos, A.I., Fortuño, J.M., Rodrigues, A. (2013). Late winter coccolithophore bloom off central Portugal in response to river discharge and upwelling. Continental Shelf Research 59, 65 - 83.
• GUERREIRO, C., Oliveira, A., Rodrigues, A. (2009). Shelf-break canyons versus "Gouf" canyons: a comparative study based on the silt-clay ́s mineralogy of bottom sediments from Oporto, Aveiro and Nazaré canyons (NW off Portugal). Journal of Coastal Research SI 56, ISSN 0749-0258, pp. 722 – 726
• GUERREIRO, C., Rosa, F., Oliveira, A., Cachão, M., Fatela, F., Rodrigues, A. (2009). Calcareous nannoplankton and benthic foraminiferal assemblages from the Nazaré Canyon (Portuguese continental margin): preliminary results. IOP Conf. Ser.: Earth Environ. Sci. 5 012004. 11pp.
• GUERREIRO, C., Rodrigues, A., Duarte, J., Oliveira, A., Taborda, R. (2007). Bottom sediment signature associated with the Oporto, Aveiro and Nazaré submarine canyons (NW off Portugal). Thalassas, 23 (1) pp. 9 - 18.
• GUERREIRO, C., Cachão, M., Drago, T. (2005). Calcareous nannoplankton as a tracer of the marine influence on the NW coast of Portugal over the last 14 000 years. Journal of Nannoplankton Research, 27 (2): 159-172.
• GUERREIRO, C. (2013). (Paleo)ecology of coccolithophores in the submarine canyons of the central Portuguese continental margin: environmental, sedimentary and oceanographic implications. PhD Dissertation, University of Lisbon, Portugal, 251 pp.




British Antarctic

The Micropalaeontological

The International Nannoplankton Association

University of Bremen Research Group Sedimentology – Palaeoceanography
Department 5 Geosciences