1. Department of Biodiversity, Ecology and Evolution, Complutense University of Madrid (UCM), Madrid E-28040, Spain
2. Department of Environmental Sciences, University of Castilla-La Mancha (UCLM), Toledo E-45071, Spain
3. Ocean and Earth Science, University of Southampton Waterfront Campus, European Way, Southampton SO14 3ZH, UK
4. Natural Resources Wales, Buckley CH7 3AJ, UK
5. AFBI Aquatics Group, River Bush Salmon Station, 21 Church Street, Bushmills, Co. Antrim BT57 8QJ, Northern Ireland