Axel Rossberg is author of “Food Webs and Biodiversity: Foundations, Models, Data” (Wiley 2013), lead advisor on food webs at Cefas, food-web expert-group lead at HBDSEG, and UK's expert on food webs at OSPAR. Research interests include food web indicators, flux models, BEF relations, size spectra, multispecies fisheries modelling and MSY, diets and trophic niche space. In MERP, he is leading Module 3 and contributing two models to the ensemble modelling study of Module 4.