Decrease of genetic diversity in the endangered Saimaa ringed seal continues

The critically endangered Saimaa ringed seal, which inhabits Lake Saimaa in Finland, has extremely low genetic diversity and this development seems to continue, according to a recent study completed at the University of Eastern Finland. In her doctoral dissertation, Mia Valtonen, MSc, analysed the temporal and regional variation in the genetic diversity of the endangered Saimaa ringed seal. The population is only around 300 individuals divided into smaller sub-populations and with very little migration among between them.

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