Julian D. Reynolds is a Fellow Emeritus of Zoology at Trinity College Dublin. His research expertise includes aquatic biology and conservation, particularly biology of freshwater crayfish and other crustaceans, eels and water beetles; ecology of freshwater bodies including turloughs, springs and bog pools; water quality of streams; terrestrial ecology - flora and invertebrate fauna of terrestrial habitats; ecology of otters; biodiversity and conservation management; glacial relicts and postglacial colonisation; protected species and threatened biotopes; alien invasive species. He is the editor of The Conservation of Aquatic Systems: Proceedings of a Seminar Held on 18-19 February 1993.