Abstract
Seven samples of roach (Rutilus rutilus L.) fromthe Austrian section of the Danube river, the Drauriver and lake Wallersee were examined to studypossible population genetic effects of anthropogenichabitat modification and subdivision. Geneticvariability was assessed using electrophoreticvariation of 11 enzyme systems coded by 14 gene loci.Genetic variation of roach was remarkably high, andwas mainly located within samples while differencesbetween them were weak. Morphometric analyses ofconventional external measurements revealedconsiderable morphological variation within samples.Significant differences between samples mainlyinvolved body depth and fin size, but did not allowadaptive ecomorphological interpretations in severalcases. The comparison of morphological and geneticvariation showed no significant correlations but waslimited by the narrow range of heterozygosityestimates.
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Baranyi, C., Gollmann, G. & Bobin, M. Genetic and morphological variability in roach Rutilus rutilus, from Austria. Hydrobiologia 350, 13–23 (1997). https://doi.org/10.1023/A:1003056311181
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DOI: https://doi.org/10.1023/A:1003056311181