1 Freshwater macroalgae of Britain and Ireland with an introduction to their use in ecological assessment (RAPPER: Rapid Assessment of PeriPhyton Ecology in Rivers) Martyn Kelly1, Lydia King2, Chris Carter3, Jan Krokowski4, Phil Harding5 and Allan Pentecost6 1 Bowburn Consultancy, 11 Monteigne Drive, Bowburn, Durham DH6 5QB, UK;
[email protected] 2 Basler Landstrasse 54, 79111 Freiburg, Germany. 3 6 Church View, Wootton, Northampton, NN4 7LJ, UK. 4 Scottish Environment Protection Agency, Parklands Avenue, Eurocentral, Holytown, North Lanarkshire ML1 4WQ. 5 Environment Agency, Scarrington Road,Westbridgeford,Nottingham NG2 5FA 6 Freshwater Biological Association, The Ferry Landing, Ambleside, Cumbria LA22 0LP. Version: 1.7 (April 2016) This is a working document and has been published in this format to facilitate testing of the method. If you have any comments or suggestions on how this document can be improved, please do get in touch and we will incorporate these into future versions of the text. Comments should be sent to
[email protected] 2 CONTENTS Contents ..................................................................................................................................... 2 ACKNOWLEDGEMENTS ....................................................................................................... 4 1. Introduction ............................................................................................................................ 5 1.1 Defining and identifying freshwater “macroalgae”