1. Marine Biology Research Group, Department of Biology Ghent University Ghent Belgium
2. Department of Nematology, Institute of Ecology and Biological Resources Vietnam Academy of Science and Technology Hanoi Vietnam
3. Centro de Investigaciones Marinas Universidad de La Habana Habana Cuba
4. Laboratory of Biomonitoring of the Environment (LBE), Faculty of Sciences of Bizerte University of Carthage Carthage Tunisia
5. Aquatic Environment and Quality, Institute for Agricultural and Fisheries Research (ILVO) Oostende Belgium
6. OD Taxonomy and Phylogeny, Royal Belgian Institute of Natural Sciences (RBINS) Brussel Belgium