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River Výrovka near the village of Písty
Czech Republic, Central Bohemian Region, Písty
Výrovka (on the upper stream also Vavřinec or Vavřinecký stream, on the middle stream also Kouřimka and lower Plaňanka, only at the mouth of Výrovka) is a river in the Central Bohemian Region in the Czech Republic. It is 61.89 km long.
Source Kochanov
- 49 ° 50′47.14 ″ N , 15 ° 3′24.72 ″ E
- 492.5 m above sea level
Mouth
- to Elbe with piston at Nymburka
- 50 ° 10’4,8 “s. br. , 14 ° 58’58,9” E
- 181 m above sea level
It springs in Kochánov at an altitude of 492.5 m . It flows mainly to the north. It flows through Uhlířské Janovice, the village of Vavřinec, where it feeds the pond of the same name. It also flows through Kouřimí, Plaňany, Radimí, Dobřichov and Písty, at which it empties from the left into the Elbe at an altitude of 181 m above sea level.
- Submitted by
- Michal Klacek
- Approved by
- Alexey Malyshev & Philippe Chevoleau
- GPS
- 50.1603622, 15.0106030
- Geographical region
- Eastern Europe
- Drainage Basin
- River Labe
- River catchment
- River Labe
- Water body type
- River
- Water body name
- Výrovka
- Water body part
- Channel
- Water body course
- Lower course
- Water body: tributary of
- River
- Tributary name
Videos above and below water
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Water Chemistry
Water information
- Water type
- fresh-water
- Water color
- Clear water
- Water transparency
- Medium
- Concentration of sediments
- Medium
- Water temperature
- 23 °C
- Water flow/curent
- Slow
Chemical parameters
- pH
- 8
- Conductivity
- 911
- GH
- dGH
- KH
- dKH
- Dissolved Oxygen
Substrate in nature
- Sand
- Beige
- Pebble/Gravel
- Mixed
- Stone
- None
- Stone form
- Silt/Mud
- Leaves
- Few
- Driftwood
- Few
- Submerged terrestrial vegetation
- Yes
Aquatic Biotope
- Date of collecting
- 20.08.2020
- Collecting area
- Middle waters
- Water depth
- 1,0m
- Air temperature
- 28 °C
- Sunlight
- Full sun
Environment
- Environment
- Affected by human activity
- Affected by human activity
- Agriculture
- Agriculture
- Massive
- Surrounding area
The river flows through a flat landscape. The banks are lined mainly with grasses and mud plants. In some sections there are a lot of trees and shrubs around.
- Underwater landscape
The river alternates deeper places full of vegetation with a larger layer of sediment with shallow parts without vegetation where there is only sand and a large number of flat stones. Driftwood and leaves are just places.
Crustaceans:
Fishes:
Aquatic vegetation:
- Threats to ecology
In some places, wastewater from wastewater treatment plants is drained into this river, which in my opinion is also the cause of the drastic decline, especially the Gobio gobio.
Riparian zone
- Trees near the aquatic habitat
-
Few -
Comment by the expert
Alexey Malyshev: The species composition of fish is well studied. From the description it is clear what a natural biotope looks like. Advice – take more pictures of fish. Especially at night.
Philippe Chevoleau: You did some good research regarding the location, and it’s nice to see the original biotope on your video and photographs. But I regret there’s little information about the inhabitants (fishes) of this local biotope. That being said, it’s really cool to discover a biotope from the Czech Republic. So, thanks a lot for that.
