Genetic composition of the Jadro softmouth trout following translocation into a new habitat |
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Authors: | Ale? Snoj Andrej Razpet Tea Tomljanovi? Tomislav Treer Simona Su?nik |
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Institution: | (1) Department of Animal Science, Biotechnical Faculty, University of Ljubljana, Groblje 3, 1230 Domžale, Slovenia;(2) Department of Fisheries, Beekeeping and Special Zoology, Faculty of Agriculture, University of Zagreb, Svetošimunska 25, 10000 Zagreb, Croatia |
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Abstract: | Genetic founder effects of a historical translocation (1965; app. 12 generations ago) of endangered softmouth trout from the
only remaining indigenous population to an adjacent uninhabited river were investigated.
A comparison of 15 microsatellites from contemporary samples in both the source and re-established populations indicated a
very low level of genetic diversity within the two populations. Furthermore, considerable differences in estimates of variability
and effective population sizes were detected between populations, but no recent bottlenecks were evident. Our data suggest
that the re-established population has lost variation due to genetic drift associated with founder effects following the translocation.
Accordingly, in relation to management, we suggest that the re-established population could serve as a secondary source of
individuals to buffer possible extinction due to demographic events. Finally, conservation initiatives to enhance the census
population size and increase levels of variability in the re-established population are proposed.
Electronic Supplementary Material
Supplementary material is available in the online version of this article at and is accessible for authorized users. |
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Keywords: | Translocation Genetic diversity Endangered population Microsatellites Conservation genetics |
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