Collares-Pereira, M.J.Geraldes, Ana MariaMagalhães, M.F.Coelho, Maria M.2008-09-022008-09-021995Collares-Pereira, M.J.; Geraldes, Ana Maria; Magalhães, M.F.; Coelho, M.M. (1995). Riparian ecotones and spatial variation of fish assemblages in Portuguese lowland streams. Hydrobiologia. ISSN 0018-8158. 303:1-3. p. 1573-51170018-8158http://hdl.handle.net/10198/713The first results of a long-term study on the role of riparian ecotones on the population and community dynamics of Iberian stream fish are presented and discussed . Riparian and macrophyte cover, bank slope and depth were among the most important variables affecting fish distribution . In general small fish favoured shallow areas with high macrophyte cover, whereas large fish dominated in deep areas with a high riparian cover . Slight spatial changes in terrestrial prey use were found suggesting a minor role for this resource during autumn . Finally, no significant spatial differences were found for linear growth, although some differences were obtained for the condition factorengRiparian ecotonesFish assemblagesSpatial variationIberian streamsjournal article10.1007/BF00034047