David Holdich, until recently based at the School of Life and Environmental Sciences, University of Nottingham, UK, is now an independent aquatic biology consultant.
As a reference text, the Biology of Freshwater Crayfish is invaluable... This is a classic; buy it now and ensure that it does not, like its predecessor, slip out of print prematurely. Fish (Institute of Fisheries Management) A beautifully produced and totally comprehensive book... invaluable for students and experts of crayfish alike. Aquaculture News, April 2002 This is a large and remarkably comprehensive book. The breadth of coverage is impressive... a most worthwhile addition to a library. Stephanie Peay, Aquatic Conservation, 2003.