Publication Abstract

Re-occurrence of the white sucker Catostomus commersonii in the River Gade (Hertfordshire)

G H. Copp, M.G. Carter, J. England  and J.R. Britton

The North American white sucker (Catostomus commersonii) has only once been reported in open waters of Europe, and this was a single specimen found in the River Gade at Hemel Hempstead (Hertfordshire) in 1992.  The species was not found again until 2004, when an additional seven species were found during routine and follow-up surveys.  The circumstances of the original and recent reports of the species are discussed.

Reference

G H. Copp, M.G. Carter, J. England  and J.R. Britton (2006) Re-occurrence of the white sucker Catostomus commersonii in the River Gade (Hertfordshire). London Naturalist, 85: 115-119