I have been a teaching assistant at the Laboratoire de Biologie animale et cellulaire of the ULB until 1983, when I earned my PhD in Zoology with a thesis on the ultrastructural description of nutrition mechanisms of a freshwater sponge. From 1984 to 1987 I was a post doc in the Biology Department at Yale University, where I applied TEM and SEM techniques to better understand the taxonomical position of hypercalcified sponges from Jamaica and the Bahamas among demosponges and developed in situ techniques to record the growth rates of their massive skeletons. These were later used as climate change proxies after I joined the Taxonomy and Phylogeny Division of the Royal Belgian Institute of Natural Sciences (RBINS) in 1992. I developed several projects with Biomar as an invited scientist and co-advised several PhD students. Since 2004 I became involved with taxonomy of South American Porifera. Presently I am a Senior Scientist at RBINS and also a research collaborator at the Museu Nacional of the Federal University of Rio de Janeiro Janeiro and Universidad Científica del Sur (Lima).
- ESPER (Esponjas del Peru) (RBINS)
- EsponjAS (Esponjas da América do Sul) (Museu Nacional Rio de Janeiro)
- Evaluación de la Diversidad de Demospongiae (Phylum Porifera) de las costas central y sur del Perú (Universidad Científica del Sur)
- Porifera histology and ultrastructure
- Underwater photography
- Taxonomy of Porifera