Current student projects

• Drivers of invertebrate communities in modified peatlands - Effects of dredging and sediment food quality on benthic invertebrates in Noord-Holland ditches. Boris Dzon. Supervision: Merrin Whatley, Harm van der Geest.
• Investing the influence of management on benthic invertebrate communities – effects of dredging in combination with habitat structure in Noord-Holland peatland ditches. Linda Huigen. Supervision: Merrin Whatley, Harm van der Geest.
• Chronic Exposure of the Oligochaete Lumbriculus variegatus to Organophosphate Flame Retardants. Anouke de Jong. Supervision: Susanne Waaijers, Michiel Kraak.
• Genetic structure of benthic macroinvertebrate populations in high altitude Andean streams. Milo de Baat. Supervision: Raul Loayza-Muro, Hans Breeuwer, Astrid Groot, Michiel Kraak.
• Persistence, bioaccumulation and toxicity of Triclosan and its metabolite Methyltriclosan. Gema Martinez. Supervision: Joop de Knecht, Theo Traas (RIVM), Susanne Waaijers, Michiel Kraak.
• The dynamics of tissue regeneration in the demosponge Halisarca caerulea. Michelle Achlati. Supervision:  Brittany Alexander, Jasper de Goeij,  Harm van der Geest
• UV enhanced toxicity of anthropogenic contaminants and natural toxins to marine phytoplankton. Charlotte Vavourakis. Supervision:  Sascha Sjollema, Harm van der Geest.
• Diatom species turnover at local scale. Implications for biological monitoring. Giulia Silenio. Supervision: Alejandra Goldenberg, Harm van der Geest.
• Toxicity of anthropogenic and natural compounds to marine phytoplankton. Gema Martinez. Supervision: Sascha Sjollema, Harm van der Geest.
• Effect of toxic compounds on tritrophic interactions in a terrestrial ecosystem. Andries Kampfraath. Supervision:  Giesen, Le Lann, van Gestel (VU University Amsterdam), Harm van der Geest
• Diversity and distribution of tropical epibiontic sponges: the role of tannin-degrading microorganisms in mangrove habitats. Frederieke Knopperts. Supervision: Ellard Hunting, Harm van der Geest
• Flatfishes maturity staging: oocyte and spermatozoa development. Camillo Rosso. Supervision: Cindy van Damme (Imares), Harm van der Geest.
• Harbour porpoise ( Phocoena phocoena ) in Dutch coastal waters. Michelle Boonstra. Supervision: Cees Camphuyzen (NIOZ), Harm van der Geest.
• Composition and structure of suspended particles in constructed wetlands. Maxine Bogaert. Supervision: Bram Mulling, Harm van der Geest.
• A literature review towards the description of a choanocyte specific molecular marker (literature study). Michelle Achlati. Supervision: Brittany Alexander, Jasper de Goeij, Harm van der Geest.
• Effects of Dreissena polymorpha and Dreissena bugensis rostriformis on macrobenthic communities (literature study). Supervison: Miguel Dionisio Pires (Deltares), Michiel Kraak.

Finished in 2012

• Adapting the taxonomic resolution of a Dutch ecological quality assessment method for the Water Framework Directive. Marieke Smit. Supervision: Wilko Verweij, Esther van der Grinten (RIVM), Michiel Kraak.
• Macroinvertebrates in Dutch peatlands: influence on peat restoration (literature study). Thiemo Heilbron. Supervision: Ciska Overbeek, Harm van der Geest.

Finished in 2011

• Implementation of the Water Framework Directive (literature study). Mandy Velthuis. Supervision: Wilko Verweij (RIVM), Michiel Kraak.
• Effects of trait categorised herbivorous invertebrates on decomposition and microbial communities. Dre Kampfraath. Supervision: Ellard Hunting, Michiel Kraak.
• Pigments in mayflies as a defense mechanism against UV-B radiation and metal contamination. Alex Huiberse. Supervision: Raul Loayza-Muro, Michiel Kraak.
• Degradability of halogen-free flame retardants in aquatic systems. Carly Blair. Supervision: Susanne Waaijers, John Parsons, Michiel Kraak.
• Suspended particles dynamics in constructed wetlands: Process identification and quantification (literature study). Zoi Farenzena. Supervision: Bram Mulling, Harm van der Geest.
• Natural toxins in the dutch coastal waters: effects on individual phytoplankton species. Mandy Velthuis. Supervision: Sascha Sjollema, Harm van der Geest.
• Chronic exposure of the oligochaete Lumbriculus variegatus to organophosphate flame retardants: bioavailability and effects on reproduction. Blanca Ordonez Gomez. Supervision: Susanne Waaijers, John Parsosns, Michiel Kraak.
• Spatial distribution of diatom species in degraded peat lands: Comparison of three ecologically contrasting systems. Soraya Alvez Codesal. Supervision: Alejandra Goldenberg, Harm van der Geest.
• Environmental risk assessment of invasive crayfish species (literature study). Marieke Soeter. Supervision: Ivo Roessink (WUR), Harm van der Geest.
• The effects of biofilm on suspended particle composition. Simon Bichebois. Supervision: Bram Mulling, Harm van der Geest.
• Toxic effects of anthropogenic contaminants on marine phytoplankton. Pablo David González González. Supervision: Sascha Sjollema, Harm van der Geest.
• Functional responses of decomposing food-webs to environmental pollution. Kristine Dorosko. Supervision: Ellard Hunting, Michiel Kraak.
• The food web structure of the cold-water coral community at Belgica Mounds, Traena and Santa Maria di Leuca reef (literature study). Bart de Vries, Supervision: Dick van Oevelen (NIOO), Harm van der Geest.
• Oil in the ocean; a review of the origin, dimension and ecological effect of oil spills in the marine environment (literature study). Sarah Engelhard. Supervision: Michiel Kraak, John Parsons.
• Assessing ecological water quality with benthic macroinvertebrates and fish & analyzing pressures and impacts (IMPRESS) in a Mediterranean river basin (Essonas, Greece), following the EU Water Framework Directive. Eleni Bintoudi. Supervision:  Maria Lazaridou (AUTh), Dimitra Bobori (AUTh), Michiel Kraak.
• Pile driving in the North Sea and its effects on the hearing apparatus of the harbor Porpoise (Phocoena phocoena). Juul Olthuis. Supervision: Leon Hoek (SeaMarco), Harm van der Geest.
• The Effect of suspended particles on freshwater phototrophic biofilms. Simon Bichebois. Supervision: Alejandra Goldenberg, Harm van der Geest.
• Linking bacterial community composition with microbial processes in constructed wetlands using community fringerprinting. Kristine Doroško. Supervision: Bram Mulling, Harm van der Geest.
• Biological effects of peat degradation: influences of fine sediment on aquatic invertebrate growth and nutrition. Soraya Alvarez Codesal. Supervision: Merrin Whatley, Harm van de Geest.
• Aquaculture: the solution to overfishing or an upcoming disaster? (literature study). Marianne van Mierlo. Supervision: Harm van der Geest, Wim Admiraal. 
• The impact of persistent organic pollutants (POPs) on organisms in the southern Barents Sea. Jort Hammer. Supervision: Frederik de Laender (NIOO), Karline Soetaert (NIOO), Michiel Kraak. 
• Rapid screening of the toxicity of anthropogenic contaminants to marine phytoplankton by PAM fluorometry. Blanca Ordonez. Supervision: Sascha Sjollema, Harm van der Geest.
• Ready biodegradability of halogen-free flame retardants. Pablo David González González. Supervision: Susanne Waaijers, John Parsons.
• Shifts in endosymbiotic communities of marine sponges after transhabitat transplantation. Oscar Franken. Supervision: Ellard Hunting, Harm van der Geest.

Finished in 2010

• Ecotoxicity of alternative flameretardants. Marieke Soeter. Supervision: Susanne Waaijers, Michiel Kraak.
• Cadmium adaptation in the midge Chironomus riparius: effects on life cycle parameters. Maxine Bogaert. Supervision: Marino Marinkovic, Michiel Kraak.
• Seagrass systems under nutrient loads and grazing. Sarah Engelhard. Supervision: Marjolijn. J. A. Christianen (RUN), Harm van der Geest.
• Effectivity of biomanipulation (literature study). Jiske van der Wielen. Supervision: Eddy Lammens (Waterdienst), Wim Admiraal.
• Benthic macroinvertebrate community composition in Andean high altitude streams. Michel Asselman. Supervision: Raul Loayza-Muro (UPCH, UvA), Hans Breeuwer, Michiel Kraak.
• Plastic: a Modern Gift with a dark side: facts, problems and solutions for plastics in the marine environment (literature study). Jort Hammer. Supervision: Michiel Kraak, John Parsons.
• Effects of metal pollution and high UVB radiation on community structure and photopigments of benthic macroinvertebrates in high altitude Andean streams. Camille Merritt. Supervision: Raul Loayza-Muro (UPCH, UvA), Michiel Kraak.
• Effects of climate change on water quality. Imke van Moorselaar. Supervision: Esther van der Grinten(RIVM), Michiel Kraak.
• Effects of climate change on water quality. Jiske van der Wiele. Supervision: Wilko Verweij (RIVM), Michiel Kraak.
• European Common Fishery Policy (CFP) and the North Sea - Overexploitation of Atlantic Cod (Gadus morhua) (literature study). Christine Hörnlein. Supervision: L. van Hoof (IMARES), J.M.Bavinck (MARE/UvA), Harm van der Geest.
• Sensing of chemical activities of hydrophobic contaminants in equilibrated matrices. Wim Bouwman. Supervision: Erwin Roex (DELTARES), Harm van de Geest.
• Counting otolith rings. Sam Molenaar. Supervision: Dr. Cardoso, Dr. H. van der Veer (NIOZ), Harm van der Geest.

Finished in 2009

• Linking invertebrate species identity, microbial functioning and dertitus processing. Bart de Vries. Supervision: Ellard Hunting, Michiel Kraak
• Long term impacts of eutrophication and species introductions on the ecosystem of Lake Victoria, Kenya (literature study). Imke van Moorselaar. Supervion: Elijah Oyoo, Wim Admiraal.
• Effect of river freshwater plumes on temperature, salinity and sedimentation in tropical coastal regions. Tim Scheufen. Supervision: Craig Grove (NIOZ), Harm van der Geest.
• Alien freshwater species and their influence on the goals set by the Water Framework Directive. Myra van der Meulen. Supervision: Jose Vos (RIVM), Michiel Kraak.
• Ecological risk assessment of metal polluted lowland streams. Jiske van der Wiele. Supervision: Jaap Postma (Ecofide), Michiel Kraak.
• Chronic toxicant exposure as evolutionary force in the non-biting midge Chironomus. Michel Asselman. Supervision: Marino Marinkovic, Michiel Kraak.
• The effect of environmental conditions on the presence of white sharks (Carcharodon carcharias) in Mossel Bay. Dorien Schroder. Supervision: Enrico Gennari (SAMPLA), Harm van der Geest.
• Invertebrate species diversity and detritus processing: An investigation into microbial metabolic responses. Merrin Whatley. Supervision: Ellard Hunting, Michiel Kraak.
• Imposex in marine gastropods: causes, consequences, and policy measures (literature study). Michel Asselman. Supervision: Dick Vethaak (Deltares), Michiel Kraak
• Population genetic aspects of metal adaptation in the midge Chironomus riparius. Marie Manguette. Superivion: Michiel Kraak, Marino Marinkovic, Hans Breeuwer.
• Assessing fish farm environmental impacts in the Mediterranean Sea (literature study). Vassia Vournazou. Supervision: Michiel Kraak, Harm van der Geest.
• Factors affecting the microbial host-virus interactions in the aquatic environment (literature study). Jan Finke. Supervision: Corine Brussaard (NIOZ), Harm van der Geest.
• What about freshwater invase species? (literature study). Wim Bouwman. Supervision: Michiel Kraak, Ellard Hunting (UvA/RIVM).

Finished in 2008

• Ecology, epidemiology, human health risk and economic impact of the aquatic parasites Dracunculus and Schistosoma (literature study). Myra van der Meulen. Supervion: D. Soonawala (LUMC), Michiel Kraak.
• Effects of overexploitation by commercial deep-sea fisheries on benthic and benthopelagic fish species (literature study). Annamarie Krieg. Supervision: Harm van der Geest. 
• The role of tannin exudates from Rhizophora mangle roots in the occurrence of epibiont sponges, an experimental analysis. Annamarie Krieg and Marianne van Mierlo. Supervision: Harm van der Geest, Rob van Soest
• Multigeneration exposure of the midge Chironomus riparius to the azaarene metabolite acridone.
  Vasia Vournazou. Supervision: Miriam Leon, Michiel Kraak.
• Floodplain restoration in the Danube catchment (literature study). Helena Hulsman. Supervision: Michiel Kraak, Helen Bergman.
• Genetic effects of toxicant induced bottlenecks (literature study). Coen Wagner. Supervision: Michiel Kraak, Hans Breeuwer.
• Multigeneration exposure of the midge Chironomus riparius to the azaarene metabolite acridone.
  Carlos Roderiguez. Supervision: Miriam Leon, Michiel Kraak.
• The ecological effect of Elastocoast on two different marine littoral communities in the Netherlands.
  Marcelle Lock. Supervision: Kees Lazonder (Arcadis), Harm van der Geest. 
• Corticosterone in free-ranging seabirds: effects, adaptive value and application (literature study). Ine Dorresteijn. Supervision: Jorg Welcker (Norwegian Polar Institute), Harm van der Geest
• The influence of ciliates on biofilm composition and spatial distribution. Myra van der Meulen. Supervision: Ellen Weerman, Harm van der Geest.
• Dynamics of redox geochemistry and functional microbial diversity in aquatic sediments.
  Ellard Hunting. Supervision: Harm van der Geest, M. Vorenhout (VU), S. Smit (Paleoterra)
• The impact of endocrine disrupting chemicals (EDCs) on fish and amphibian populations (literature study). Sander de Groot. Supervision: Dick Vethaak (RIKZ), Michiel Kraak
• Ligula intestinalis: Rastrineobola argentea's hidden threat - effect of a tapeworm infection on a main food source from Lake victoria, East Africa. Supervision: Odipo Osano (Moi University, Eldoret, Kenya), Wim Admiraal
• Effects of habitat deterioration on the activity spaces and home ranges of the nursery bound juvenile lemon shark (Negaprion brevirostris) in the North Sound of Bimini, Bahamas.
  Judith Bakker. Supervision: S.H. Gruber (Bimini Biological Field Station, Bimini, Bahamas), Michiel Kraak
• Sea of trouble and possibilities for the Blacktip Shark(Carcharhinus limbatus)(literature study). Suzette Flantua. Supervision: Rafael Tavares (CIT, Venezuela), Michiel Kraak
• Sexual maturation as potential trigger for ontogenetic habitat shifts of four coral reef fish species in Tanzania. Michel Trommelen. Supervison: Ismael Kimirei (FAST, Tanzania), Ivan Nagelkerken (Radboud University Nijmegen), Harm van der Geest

Finished in 2007

• Chemical defense in biofilms (literature study).
  Ellard Hunting. Supervision: Wim Admiraal, Michiel Kraak.
• Estimating potential harmful effects of oil production in the Barents Sea (literature study).
  Eirik Steindal. Supervision: Michiel Kraak
• Glyphosate: Fears and facts of large-scale fumigations in Colombia (literature study).
  Carlos Roderiguez. Supervision: Michiel Kraak, Joost Duivenvoorden.
• Antibiotics in the Aquatic environment: direct and indirect effects (literature study).
  Jiery van Roon. Supervision: Dick de Zwart (RIVM), Michiel Kraak

Finished in 2006

• Impact of metal(loid) organic compounds on plants and invertebrates.
  Stephanie Molleken. Supervision: Harm van der Geest, Lars Duester (University of Duisburg-Essen).
• Diversity and species-richness of mangrove-sponges in a variable environment.
  Ellard Hunting. Supervision: Rob van Soest (UvA ZMA), Harm van der Geest.
• The supply and settlement of barnacle larvae.
  Harriët van Overzee. Supervision: Prof. Chris Todd (Dep. Marine Ecology, University of St Andrews, Scotland), Wim Admiraal
• Spatial heterogeneity of benthic grazers on intertidal flats.
  Michel Trommelen. Supervision: Ellen Weerman (NIOO), Harm van der Geest
• Algal response to fertilisation in a Mediterranean stream.
  Annelies Veraart. Supervision: Sergi Sabater (University of Girona), Wim Admiraal
• Effect of riparian land use on leaf litter breakdown and invertebrate community composition in tropical montane forest streams.
  Juan Calles. Supervision: Andrea Encalada (University of Coimbra), Michiel Kraak
• Effects of PACs on  the emergence of the midge Chironomus riparius.
  Eef Borgman. Supervision: Miriam Leon Paumen, Michiel Kraak
• Effluent from a wastewater treatment plant as a food source for Daphnids: an experimental analysis.
  Marieke van de Vorstenbosch. Supervision: Harm van der Geest, Simone Lucker, Ruud Kampf (Hoogheemraadschap Hollands Noorderkwartier)
• Effects of increased CO2 levels on the composition of phyto- and zooplankton.
  Mark van Dijk. Supervision: Anthony Verschoor (NIOO), Michiel Kraak

Finished in 2005

• Development of a new toxicity test using common duckweed Lemna minor.
  Karin Hallsten. supervision: Harm van der Geest, Simone Lucker
• Effects of copper on colonization and succession of natural and artificial biofilms.
  Jolijn Zegwaard. Supervision: Harm van der Geest, Miriam Leon Paumen  
• Changes in the macrofauna communities in a lowland stream complex in the Netherlands, 1994-2004.
  Lidewij Servatius. Supervision: David Tempelman (AquaSense), Michiel Kraak
• Should I stay or should I go? Do Chironomus riparius larvae prefer food or do they avoid toxicants?
  Coen Wagner. Supervision: Elske de Haas, Michiel Kraak
• Which factors determine benthic invertebrate community composition?
  Inez Akkerman. Supervision: Elske de Haas, Michiel Kraak
• Winter browsing of willows leads to higher food quality for beavers in spring, but not in autumn.
  Annelies Veraart. Supervision: Bart Nolet (NIOO), Michiel Kraak
• Comparing the clearance rate of Dreissena polymorpha, Anodonta anatina and Daphnia galeata on mono- and mixed cultures of algae.
  Jacco Jong. Supervision: Babette Bontes (NIOO), Michiel Kraak
• Multi-generation effects of toxicants (literature study)
  Mark van Dijk. Supervision: Michiel Kraak 

Finished in 2004

• Transfer of copper in the benthic food chain.
  Nienke Wieringa. supervision: Harm van der Geest, Miriam Leon Paumen
• Welke factoren bepalen de soortsamenstelling van de benthische levensgemeenschap in verontreinigd sediment?
  Rob van Haaren. Supervision: Elske de Haas, Michiel Kraak
• Validation and representativeness of the Biolog Method.
  Bram van Liere. Supervision: Marie-Elene Boivin (RIVM), Michiel Kraak
• De nadelige effecten van kleinschalige goudwinning op aquatische ecosystemen in Suriname.
  Inez Akkerman. Supervision: P. Ouboter (Anton de Kom Universiteit, Suriname), Michiel Kraak

Finished in 2003

• Biofilm development on copper contaminated sediment .
  Ellen Weerman. Supervision: Harm van der Geest, Miriam Leon Paumen  
• Natuurontwikkeling in uiterwaarden van grote rivieren in Nederland. (literature study)
  Rob van Haaren. Supervision: Harm van der Geest
• Identificatie van Spisula-, Donax- en Ensis-resten in de faeces van Eiders Somateria mollisima.
  Peter Spannenburg. Supervision: Mardik Leopold (Alterra), Wim Admiraal
• Production and respiration in a Canadian prairie slough.
  Matthijs Vlaar. Supervision: Joseph Culp (Environment Canada), Wim Admiraal
• Influence of food level on chronic cadmium toxicity to Daphnia magna at low temperature.
  Lonneke Tokkie. Supervision: Evelyn Heugens, Michiel Kraak
• Forest carbon budgetrs compared: The significance of mangrove forests as carbon sink.
  Kim de Mutsert. Supervision: Robbert Twilley (University of Louisiana at Lafayette, USA), Michiel Kraak
• Influence of copper and cadmium exposure via water and food. on the water flea Chydorus sphaericus.
  Yann Cuenot. Supervision: Supervision: Marie-Elene Boivin (RIVM), Wim Admiraal

Finished in 2002

• Damselflies in Dutch lowland streams: field distribution and environmental requirements.
  Rob Kroes. Supervision: Harm van der Geest, Dick Groenendijk (Vlinderstichting Wageningen)
• Life history experiments and development of sediment bioassays with benthic copepods.
  Marjanka Schaap. Supervision: Maria-Jose Caramujo, Elske de Haas, Michiel Kraak
• Transfer of heavy metals from biofilms to the freshwater snail Melanopsis sp.
  Tomas de Schutter. Supervision: Julia Toja (University of Sevilla), Michiel Kraak
• Metals and microsatellites in the midge Chironomus riparius.
  Bas Reuvers. Supervision: Hans Breeuwer, Michiel Kraak
• Density- and food dependent effects of fenvalerate on Daphnia magna populations.
  Barry Pieters. Supervision: Matthias Liess (UFZ, Duitsland), Michiel Kraak
• Combined effects of food and Cu in sediments on the midge Chironomus riparius.
  Miriam Leon Paumen. Supervision: Elske de Haas, Michiel Kraak
• Benthic algae community response to nutrient limitation.
  Stefan Simis. Supervision: Esther van der Grinten, Wim Admiraal
• Tributyltin: Regulations of TBT and other organotin compounds (literature study)
  Reanne Creyghton. Supervision: Michiel Kraak
• Trophic interactions in Great Lakes Coastal Wetlands: Zoobenthos biomass as an indicator for wetland quality.
  Kim de Mutsert. Supervision: Patricia Chow-Fraser (Mc Master University, Canada), Michiel Kraak
• Environmental impacts of coca production and eradication in Colombia. (literature study)
  Merel van der Mark. Supervision: Michiel Kraak
• Biodiversity in Lake Tupe, Rio Negro, Brasil
  Merel van der Mark. Supervision: Assad Darwich (INPA, Brasil), Michiel Kraak

Before 2002

no data available