- Data from: Causes and consequences of fine-scale population structure in a critically endangered freshwater seal(2014-07-09) Valtonen, Mia; Palo, Jukka U.; Aspi, Jouni; Ruokonen, Minna; Kunnasranta, Mervi; Nyman, Tommi; University of Eastern Finland - Valtonen, Mia; University of Helsinki - Palo, Jukka U.; University of Oulu - Aspi, Jouni; University of Oulu - Ruokonen, Minna; University of Eastern Finland - Kunnasranta, Mervi; University of Eastern Finland - Nyman, Tommi