caa a22 4500 445893265 CHVBK 20180317145623.0 cr unu---uuuuu 170323e20111001xx s 000 0 eng 10.1007/s10750-011-0795-0 doi (NATIONALLICENCE)springer-10.1007/s10750-011-0795-0 Assessment of the ecological status of regulated lakes: stressor-specific metrics from littoral fish assemblages [Elektronische Daten] [Tapio Sutela, Teppo Vehanen, Martti Rask] Following the European Water Framework Directive (WFD), the ecological status of lakes should be classified based mainly on biota, including fish fauna. In Finnish regulated lakes, littoral fish assemblages may be especially vulnerable to winter drawdown in water level. In this study, we sampled littoral fish assemblages by electrofishing in 14 regulated and 9 reference lakes, and developed three stressor-specific metrics based on total fish density, proportion of disturbance-sensitive species, and occurrence of juveniles. Ecological status was classified from bad to high in regulated lakes, whereas standard WFD assessment based on NORDIC gillnet sampling indicated high status and no response to water level regulation. We suggest that stressor-specific metrics should be integrated into the assessment of the ecological status of regulated lakes in the WFD. Springer Science+Business Media B.V., 2011 Regulated lake nationallicence Littoral zone nationallicence Electrofishing nationallicence Ecological status nationallicence WFD nationallicence Sutela Tapio Finnish Game and Fisheries Research Institute, PL 413, 90014, University of Oulu, Finland aut Vehanen Teppo Finnish Game and Fisheries Research Institute, PL 413, 90014, University of Oulu, Finland aut Rask Martti Finnish Game and Fisheries Research Institute, 16970, Evo, Finland aut Hydrobiologia Springer Netherlands 675/1(2011-10-01), 55-64 0018-8158 675:1<55 2011 675 10750 https://doi.org/10.1007/s10750-011-0795-0 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-011-0795-0 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Sutela Tapio Finnish Game and Fisheries Research Institute, PL 413, 90014, University of Oulu, Finland aut NATIONALLICENCE 700 1- Vehanen Teppo Finnish Game and Fisheries Research Institute, PL 413, 90014, University of Oulu, Finland aut NATIONALLICENCE 700 1- Rask Martti Finnish Game and Fisheries Research Institute, 16970, Evo, Finland aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 675/1(2011-10-01), 55-64 0018-8158 675:1<55 2011 675 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer