The Stonávka is a river in the Czech Republic, a left tributary of the Olza. It flows through the Moravian-Silesian Region. It is 33.7 km long.

Etymology

The name is derived from the Czech word sténat ('to groan'), meaning 'murmuring river'.

Characteristic

The Stonávka originates in the territory of Komorní Lhotka in the Moravian-Silesian Beskids at an elevation of 691 m and flows to Karviná, where it merges with the Olza River at an elevation of 220 m. It is 33.7 km long. Its drainage basin has an area of 131.3 km2. The average discharge at its mouth is 1.47 m3/s. The longest tributaries of the Stonávka are:

Course

The river flows through the municipal territories of Komorní Lhotka, Hnojník, Třanovice, Těrlicko, Albrechtice, Stonava and Karviná.

Bodies of water

The Těrlicko Reservoir is built on the river.

Fauna

Protected fish that live in the river include the common minnow. The middle and lower course of the river are home to the Eurasian otter and common kingfisher. The occurrence of the Eurasian beaver was also recorded.