Strength and uncertainty of phytoplankton metrics for assessing eutrophication impacts in lakes
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WATER BODIES IN EUROPE
Strength and uncertainty of phytoplankton metrics for assessing eutrophication impacts in lakes L. Carvalho • S. Poikane • A. Lyche Solheim • G. Phillips • G. Borics • J. Catalan • C. De Hoyos • S. Drakare • B. J. Dudley • M. Ja¨rvinen • C. Laplace-Treyture • K. Maileht • C. McDonald • U. Mischke • J. Moe • G. Morabito • P. No˜ges • T. No˜ges • I. Ott • A. Pasztaleniec • B. Skjelbred S. J. Thackeray
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Received: 3 July 2012 / Accepted: 1 October 2012 Springer Science+Business Media Dordrecht 2012
Abstract Phytoplankton constitutes a diverse array of short-lived organisms which derive their nutrients from the water column of lakes. These features make this community the most direct and earliest indicator of the impacts of changing nutrient conditions on lake ecosystems. It also makes them particularly suitable for measuring the success of restoration measures following reductions in nutrient loads. This paper
Guest editors: C. K. Feld, A. Borja, L. Carvalho & D. Hering / Water bodies in Europe: integrative systems to assess ecological status and recovery L. Carvalho (&) B. J. Dudley C. McDonald Centre for Ecology & Hydrology, Bush Estate, Penicuik EH26 0QB, Midlothian, UK e-mail: [email protected] S. Poikane Institute for Environment & Sustainability, EC Joint Research Centre (JRC), Ispra, Italy
integrates a large volume of work on a number of measures, or metrics, developed for using phytoplankton to assess the ecological status of European lakes, as required for the Water Framework Directive. It assesses the indicator strength of these metrics, specifically in relation to representing the impacts of eutrophication. It also examines how these measures vary naturally at different locations within a lake, as well as between lakes, and how much variability is associated with different replicate samples, different months within a year and between years. On the basis of this analysis, three of the strongest metrics J. Catalan Centre for Advanced Studies of Blanes (CEAB-CSIC), Acce´s Cala St. Francesc 14, 17300 Blanes, Spain C. De Hoyos Centro de Estudios Hidrogra´ficos del CEDEX, PO Bajo de la Virgen del Puerto, 3, 28005 Madrid, Spain
A. Lyche Solheim J. Moe B. Skjelbred Norsk Institutt for Vannforskning (NIVA), Gaustadalle´en 21, Oslo 0349, Norway
S. Drakare Department of Aquatic Sciences and Assessment, Swedish University of Agricultural Sciences (SLU), P.O. Box 7050, 75007 Uppsala, Sweden
G. Phillips Environment Agency, Kings Meadow House, Kings Meadow Road, Reading RG1 8DQ, UK
M. Ja¨rvinen Finnish Environment Institute (SYKE), The Jyva¨skyla¨ Office, Survontie 9, 40500 Jyva¨skyla¨, Finland
G. Borics Department of Tisza Research, Balaton Limnological Institute, Centre for Ecological Research, Hungarian Academy of Sciences, 18/c. Bem square, Debrecen 4026, Hungary
C. Laplace-Treyture Irstea, UR REBX, 50 Avenue de Verdun, 33612 Cestas Cedex, France
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Hydrobiologia
(chlorophyll-a, phytoplankton trophic index (PTI), and cyanobacterial biovolume) are recommended for use as ro
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