1Environment Agency, Threshelfords Business Park, Feering, Essex, CO5 9SE UK
2Institute of Zoology, Regents Park, London, NW1 4RY UK
3Technical University of Denmark, National Institute of Aquatic Resources, Vejlsoevej 39, 8600 Silkeborg, Denmark
4Centre for Ecology, Evolution and Environmental Changes and Faculdade de Ciências E Tecnologia, Universidade Dos Açores, Rua Mãe de Deus, 9500-321 Ponta Delgada, Azores Portugal
5Raufarhöfn, Iceland
6Environment Agency, Rivers House, East Quay, Bridgwater, TA6 4YS UK
7Zoological Society of London, Regents Park, London, NW1 4RY UK
8Natural England, Sterling House, Dix’s Field, Exeter, EX1 1QA UK
9The Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk, NR33 0HT UK
10Department of Aquatic Resources, Institute of Freshwater Research, Swedish University of Agricultural Sciences, Stångholmsvägen 2, 178 93 Drottningholm, Sweden
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