1. Biological and Environmental SciencesSchool of Natural Sciences, University of StirlingStirling UK
2. Plymouth Marine LaboratoryPlymouth UK
3. Balaton Limnological Institute, MTA Centre for Ecological ResearchTihany Hungary
4. Stable Isotope Biochemistry LabScottish Universities Environmental Research CentreEast Kilbride UK
5. Deceased 17 June 2015