1. Wageningen University and the Institute for Marine Resources & Ecosystem Studies (IMARES); Wageningen The Netherlands
2. Safety & Environmental Assurance Centre; Sharnbrook, Bedford United Kingdom
3. Marine Biology and Ecology Research Centre, School of Marine Science and Engineering; Plymouth University; Plymouth UK
4. Marine Debris Program; National Oceanic and Atmospheric Administration; Silver Spring, Maryland USA
5. I.M. Systems Group; Rockville, Maryland USA