česky english deutsch polski <<< >>>

Nature Trail Hvozdnice

The Hvozdnice River

The Hvozdnice river is 36km long, it drains the southern part of Štěrbořická basin and it is an important biocorridor in this region. In the riverine forest, we can still see riverbed-forming processes, such as lateral erosion which later on may form curves or meanders. The quality of the water in rivers is indicated by the presence of particular water organisms. These are usually small animals living at the bottom of stones. If you find only headles and larvae of midges, that would indicate a very much polluted water. In this place however, you may find the larvae of may fly, trichoptera and monfish. Cool and well-oxygenated water is very suitable for trout Salmo trutta and Thymallus thymallus. Oncorhynchus mykiss has been breeded here arteficially, and originally comes from the northern America. Tha water-pollution scale has four grades, and Hvozdnice river has the second grade. The first grade is typical for mountain torrents.

Alcedo atthis is making it´s norrens in the meander sides and finds enough of food here. Pseudorasbora parva is his prey. It did not originate in our water flows but in Asia. We can see it in the water together with – by the law protected – minnows in rivers and carps in ponds.

We may occasionally spot Cinclus cinclus that is able to twist little stones and catch small animals under the water surface.

Alcedo atthis

Alcedo atthis

Řeka Hvozdnice

Řeka Hvozdnice

Useful information

Contact

Regional Authority of the Moravian – Silesian Region Department of the Environment and Agriculture 28. října 117, 702 18 Ostrava www.kr-moravskoslezsky.cz Telephone.: +420 595 622 297

GPS position

N 49° 54.058', E 17° 49.846'
[GPX]

[MAPY.CZ]

Contact

Krajský úřad Moravskoslezského kraje
Odbor životního prostředí a zemědělství
28. října 117, Ostrava
Tel.:+420 595 622 297
http://www.kr-moravskoslezsky.cz