• 2016– present:  Marine ecology researcher (post-doc), Royal Netherlands Institute for Sea Research (NIOZ), Texel
    Investigating the environmental effects of Reverse Electrodialysis power generation (Blue Energy) on the environment and impact of clogging, fouling etc by organisms in the REDstack experimental power plant in the Netherlands.
  • 2015– 2017: Researcher Fisheries, Good Fish Foundation, Veenendaal
    Development, maintenance and improvement of the VISwijzer website en iOS en Android apps. Performing sustainability assessments for fisheries and aquaculture products for Good Fish Foundation and different clients.
  • 2010–2014 PhD, Royal NIOZ, Texel
    During my PhD I studied the occurrence, species composition, seasonal patterns and long-term changes in populations of gelatinous zooplankton in Dutch coastal waters. Focused on changes following the introduction of the invasive ctenophore Mnemiopsis leidyi. First I qualified and quantified the role gelatinous zooplankton plays in the ecosystems of Dutch coastal waters, primarily the Wadden Sea. The invasive ctenophore Mnemiopsis leidyi was found to be the most abundant species present in the area. Using field sampling, experiments and Dynamic Energy Budget modelling I investigated what makes this species such a successful invader.
    Promotor: Prof. Dr. Theunis Piersma, University of Groningen.
    Co-promotores: Dr. Ir. Henk van der Veer, NIOZ en Dr. Victor Langenberg, Deltares.
  • 2009–2010: Research assistant, Royal NIOZ, Texel
    Performing field- and lab work; sampling and identification of zooplankton and benthos in the Wadden Sea. Projects: SIBES (NIOZ/NAM) and PRODUS (Rijkswaterstaat)
  • 2009: MSc research internship, Royal NIOZ, Texel
    Investigating the species composition and seasonal patterns of gelatinous zooplankton in the Wadden Sea by means of a weekly sampling programme. I also participated in 6 week-long sampling cruises for the NIOZ NWO-ZKO project “Structure and trophic functioning of Wadden Sea fish fauna”.
    Supervisor: Dr. Ir. Henk van der Veer.
  • 2008: Research assistant, University of British Columbia, Olhão, Portugal
    Assisting Project Seahorse researchers with SCUBA diving fieldwork investigating distribution and ecology of seahorses. Underwater transects, measuring and tagging seahorses in the Ria Formosa nature reserve in southern Portugal.
    Supervisor: Dr. Iain Caldwell
  • 2007–2008: MSc research internship, Wageningen IMARES, IJmuiden
    Performing a study on fisheries induced evolution in North Sea plaice, more specifically on sexual dimorphism in reproduction and growth. For this project I sampled discards and bycatch of North Sea beam trawlers and joined several ICES IBTS and BTS surveys on the North Sea. I presented the results at the International Flatfish Symposium in Sesimbra, Portugal in 2008. The study is published in Journal of Sea Research.
    Supervisor: Prof. Dr. Adriaan Rijnsdorp.
  • 2010–2016: PhD. Marine Ecology, University of Groningen, Groningen, Netherlands.
    On occurrence, species composition, seasonal patterns and long-term changes in populations of gelatinous zooplankton in Dutch coastal waters. Focused on changes following the introduction of the invasive ctenophore Mnemiopsis leidyi.
  • 2007–2010 MSc. Marine Biology, University of Groningen, Groningen, Netherlands.
    MSc thesis on match-mismatch processes in de Wadden Sea.
  • 2004–2007 BSc. Biology, University of Groningen, Groningen, Netherlands.
    Specialisation Marine Biology
  • 1998–2004 pre-university college, Stedelijk Daltoncollege, Zutphen, Netherlands


  • Proficient in:
    • R: Analysis and visualisation of data, including the packages TIDYR, DPLYR and GGPLOT2
    • Microsoft Office: Access, Excel, Word, Powerpoint
    • LaTeX: manuscript preparation
    • QGIS Geographical Information System
    • WordPress Content Management System
  • Basic knowledge:
    • Office 365 cloudservice admin
    • Adobe Illustrator/Inkscape
    • Adobe Photoshop
    • GNU Octave/Matlab


  • Dutch: mother tongue
  • English: fluent in written as wel as spoken
  • German: Basic knowledge
  • French: Basic knowledge

Analytical skills
Courses followed during my PhD:

  • Introduction, GLM and GAM in R, Highland Statistics
  • Mixed modeling, Highland Statistics
  • Zero-inflated models and Bayesian statistics, Highland Statistics
  • Geographical analysis with QGIS, linfiniti
  • Dynamic Energy Budgets, VU University
  • Statistical Aspects of Sampling, Wageningen UR
  • Impact of gelatinous zooplankton on pelagic food webs, University of Gothenburg

Taxonomical skills
Good taxonomical/identification skills in:

  • Wadden Sea macrobenthos
  • meso- macro- and megaplankton of Dutch coastal waters and the North Sea
  • fish fauna of Dutch coastal waters and the North Sea

SCUBA diving:

  • CMAS 1* diving instructor (PADI Assistant Instructor equivalent) since 2007
  • CMAS 3* diving license (PADI Dive Master equivalent) since 2006

I have made about 500 SCUBA dives, mainly in Dutch waters (inshore, North Sea, Wadden Sea, Zeeland) as well as in areas such as Cornwall, Brittany, Mediterranean, Red Sea, Caribbean.


  • Survival at Sea STCW 95
  • Driving licence B
  • Klein Vaarbewijs II (ICC Coastal Waters boating licence)
Volunteering work

2007: Board member, Jeugdbond voor Natuur- en Milieustudie, Amsterdam

2002–2011: nature guide and organising camps, Jeugdbond voor Natuur- en Milieustudie, Amsterdam
participated and (co) organised 100+ weekend- and summer camps as nature guide in the areas of sea life, birds, butterflies and dragonflies, as well as various other functions such as overall supervisor, treasurer and cook.

2007–2009: Course leader, Stichting Onderwaterbiologie, Groningen
Organising introductory courses in marine biology for SCUBA divers and dive clubs. Lectures, dives and practicals on identification.

2005–2009: Various functions, Groninger Biologen Duik Vereniging Calamari, Groningen
A local diving club. Organising camps, teaching theory and practice of diving. Functions including Board Member, Instructor and Course Leader.

2004–2005: Editor, Vrije Vogels, Zeist
Writing and editing contributions for a magazine of the Dutch branch of BirdLife International