Fig. 4 in Structure And Dynamics Of Crucians' Settlements (Cypriniformes, Сarassius) In Water Systems Of Eastern Ukraine

Fig. 4. Distribution pattern and frequency of occurrence of the aboriginal C. сarassius (marked with red color) and the representatives of the group C. (superspecies auratus) (marked with green color) in river systems of Eastern Ukraine within the last 100 years: а — 1918–1958; b — 1972–1981; c — 1987–2003; d — 2006–2009.