Management & Conservation of Crayfish
Total Page:16
File Type:pdf, Size:1020Kb
ManagementManagement && ConservationConservation ofof CrayfishCrayfish Proceedings of a conference held on 7th November 2002 at the Nottingham Forest Football Club, Nottingham, UK. www.environment-agency.gov.uk The Environment Agency is the leading public body protecting and improving the environment in England and Wales. It’s our job to make sure that air, land and water are looked after by everyone in today’s society, so that tomorrow’s generations inherit a cleaner, healthier world. Our work includes tackling flooding and pollution incidents, reducing industry’s impacts on the environment, cleaning up rivers, coastal waters and contaminated land, and improving wildlife habitats. These proceedings were produced under Environment Agency R&D Project W1-070 Published by: Environment Agency Rio House Waterside Drive, Aztec West Almondsbury, Bristol BS32 4UD Tel: 01454 624400 Fax: 01454 624409 ISBN : 1844321584 © Environment Agency July 2003 All rights reserved. This document may be reproduced with prior permission of the Environment Agency. This report is printed on Cyclus Print, a 100% recycled stock, which is 100% post consumer waste and is totally chlorine free. Water used is treated and in most cases returned to source in better condition than removed. Front cover illustration by Jeanette Sibley Management & Conservation of Crayfish Proceedings of a conference held on 7th November 2002 at the Nottingham Forest Football Club, Nottingham, UK Edited by David M. Holdich (EMEC Ecology) & Peter J. Sibley (Environment Agency) May 2003 Supported by: Environment Agency British Waterways English Nature Institute of Fisheries Management International Association of Astacology This publication should be cited as: Holdich, D. M. & Sibley, P. J. (eds) (2003). Management & Conservation of Crayfish. Proceedings of a conference held on 7th November, 2002. Environment Agency, Bristol. 217 pp. ii Editorial This conference was a follow up to the one held in Leeds in 2000 and is a testament to the continued interest in both indigenous (native) and non-indigenous (alien) crayfish in the British Isles. Over 120 delegates attended from a wide range of organisations, as far a field as Germany, the Czech Republic and Croatia, and a further 40 had to be disappointed due to space considerations. A large number of high quality posters were presented and kept delegates occupied during tea breaks and over lunch. The conference dinner, held the night before at the Lobster Pot Restaurant, was a great success, and many shellfish, including crayfish, were consumed. On the day of the conference Peter Sibley made the opening and closing remarks and acted as Master of Ceremonies. A wide range of papers were presented and David Holdich, David Fraser, Jonathan Brickland and Richard Jennings chaired the four sessions respectively. The edited proceedings include the majority of papers presented at the conference, as well as some of the posters, and an additional one on legislation. The editors considered this to be an important topic and, as a number of issues were raised during the discussions, it was decided to include a review of current and planned legislation. Also included are a distribution update for mainland Britain and a bibliography of biological and ecological studies on crayfish in the British Isles. Some short communications have been included within the main body of the volume as they were thought to add weight to the views on management and conservation of the indigenous white-clawed crayfish. Organising committee: Peter Sibley (Environment Agency) Jonathan Brickland (British Waterways) David Holdich (International Association of Astacology) Richard Jennings (Environment Agency) Julie Bywater (Environment Agency) David Fraser (English Nature) Acknowledgements - the editors would like to thank: The list of reviewers below and the rest of the organising committee for their help. Jim Lyons, Pete Sibley and David Holdich for taking the conference photographs. Lianne Pegrum, Lesley Rippon, Lisa Roberts and Belinda Steward of the Environment Agency for their assistance with the smooth running of the conference. Jeanette Sibley for the conference painting and the colour plate on the title page. The children of Class 1 (2001/2), Flintham Primary School, Notts for the crayfish drawings. Nottingham Forest Football Club for providing the facilities and looking after us on the day. Alastair Picken, Pam Mardon, Phil Harding and Helen Watkinson for their help with publishing these proceedings. i List of reviewers All papers submitted to the editors were reviewed by at least two persons. Ben Le Bas (English Nature) Paul Bradley (Sheffield University) Jonathan Brickland (British Waterways) David Fraser (English Nature) Nigel Hewlett (Environment Agency) David Holdich (EMEC Ecology) Adrian Hutchings (Sparsholt College) Richard Jennings (Environment Agency) Paul Lidgett (Environment Agency) Jim Lyons (Environment Agency) Stephanie Peay (Scott Wilson Ltd) Julian Reynolds (University of Dublin) David Rogers (David Rogers Associates) Peter Sibley (Environment Agency) Fred Slater (Cardiff University) Joanne Spink (Environment Agency) Jeama Stanton (Leicester University) Paul Stebbing (University of Newcastle) List of delegates Vicky Armitage Environment Agency (North East Region) Liz Baldwin University of Manchester Trina Barrett Barrett Environmental Consultancy Andy Beal University of Leicester Jonathan Blowers English Nature (Mercia) Paul Bradley University of Sheffield Peter Bradshaw Gloucester Wildlife Trust Thomas Breithaupt University of Hull Jonathan Brickland British Waterways Damian Bubb University of Durham Gail Butterill Cheshire Wildlife Trust Julie Bywater Environment Agency (Thames Region) Rob Cathcart English Nature (Peterborough) Richard Chadd Environment Agency (Anglian Region) Steve Chambers Environment Agency (North East Region) Fay Chester Lincolnshire FWAG Martin Christmas Environment Agency (North East Region) Melissa Clarkson Environment Agency (South West Region) Allison Crofts The Wildlife Trusts Judith Crompton Environment Agency (South West Region) ii Paula Cullen University of Ireland, Galway Jon Davies Cresswell Assoc. Annette Daykin British Waterways Joe Deimel Environment Agency (Midlands Region) Andreanne Demers University of Dublin Chris Extence Environment Agency (Anglian Region) John Foster Environment Agency (Southern Region) David Fraser English Nature (Peterborough) Martin Frayling Environment Agency (South West Region) Mary Gallagher Queen's University, Belfast Andy Graham Worcestershire Wildlife Trust Paul Greest Environment Agency (Welsh Region) Leila Griffiths British Waterways Catrin Grimstead Environment Agency (Welsh Region) Chantal Hagen English Nature (Eastern) Claire Hamilton Environment Agency (Thames Region) Joerg Hardege Hull University Paul Harding National Biodiversity Network Phil Harding Environment Agency (Midlands Region) Rachel Harding Environment Agency (North West Region) Nigel Hewlett Environment Agency (Anglian Region) Peter Hiley Scott Wilson David Holdich International Association of Astacology Shelley Howard Environment Agency (Midlands Region) Mererid Howells University of Wales, Cardiff David Hughes Ecological Services Ltd Richard Jennings Environment Agency (North East Region) Clare Johnson Environment Agency (North East Region) Erica Kemp Scott Wilson Nick Kite Environment Agency (Anglian Region) Goran Klobucar University of Zagreb, Croatia Pavel Kozak University of South Bohemia, Czech Rep. Katherine Land FPCR Jason Leach British Waterways Ben LeBas English Nature (Peak District & Derbyshire) Richard Leishman English Nature (Norfolk) Anne Lewis Environment Agency (North East Region) Rebecca Longfield Bullen Consultants Martyn Lucas University of Durham Jim Lyons Environment Agency (Midlands Region) Ivana Maguire University of Zagreb, Croatia iii Andy Martin Environment Agency (Thames Region) Louise McAlavey DoE Northern Ireland Ken Monro English Nature (Eastern) Martin Moore Moore & Moore Carp Andrew Morissey Environment Agency (North West Region) Jo Mosley Environment Agency (Midlands Region) Leela O’Dea British Waterways Birgit Oidtmann University of Munich, Germany Jo Oldaker English Nature (Peterborough) Stephanie Peay Crayfish Enthusiast Philip Precey Derbyshire Wildlife Trust Stuart Priestley Durham Wildlife Trust Amanda Proud Ivel & Ouse Countryside Project Joe Quigley United Clyde Angling Protective Assoc. Ltd David Rendall Scottish Environmental Protection Agency Julian Reynolds Trinity College University of Dublin, Ireland Elaine Richmond Cresswell Associates Lesley Rippon Environment Agency (Midlands Region) Lisa Roberts Environment Agency (Midlands Region) David Rogers David Rogers Associates Emma Rothero Environment Agency (South West Region) Caroline Savage Environment Agency (Midlands Region) Alasdair Scott CEFAS Matt Shardlow Buglife Peter Sibley Environment Agency (Midlands Region) Stuart Silver British Waterways Fred Slater University of Wales, Cardiff Philip Smith Environment Agency (Anglian Region) Jo Spink Environment Agency (South West Region) Jeama Stanton University of Leicester Paul Stebbing University of Newcastle Joe Stevens Environment Agency (Southern Region) Jim Stewart Forestry Commission Belinda Steward Environment Agency (Midlands Region) Glyn Stewart British Waterways Caroline Tero Environment Agency (Anglian Region) John Tyler Kent Wildlife Trust Julia Varity Gloucester Wildlife Trust Gordon Watson University of Portsmouth Liz Watson David Rogers Associates