Fish, perch family
Ruffe
- Maximum length
- 25cm
- Maximum weight
- 0,1kg
- Best water temperature
- 8–20 °C
- Water today (4.1 °C)
- Tolerates it, but slowed down
- Fishing districts near where it occurs
- 10
About the species Ruffe
How to recognise it
It resembles a perch but is smaller, with one continuous dorsal fin with spines at the front, large eyes and a mottled olive-brown colouring covered in mucus.
Where it lives
Deeper pockets of rivers, reservoirs and lakes with a slow current, near the bottom.
What it feeds on
Insect larvae, worms, small crustaceans and the eggs of other fish.
Spawning
From March to May; it lays eggs on stones, plants and sand.
When removing it, watch out for the sharp spines of the dorsal fin. It takes a worm near the bottom and is often caught while fishing for other species.
Water temperature and requirements
At what temperature the species is active and how well today's water suits it.
Tolerates it, but slowed downTypical water in Slovakia is 4.1 °C today. The species tolerates this temperature (1 to 26 °C), but the water is colder than the ideal 8 to 20 °C. Fish tend to be slower and pickier.
- tolerates 1 to 26 °C
- best 8 to 20 °C
- spawning at 8 to 15 °C
- typical water today 4.1 °C
- Length
- up to 25 cm
- Weight
- up to 0.1 kg
- Oxygen
- Typical oxygen requirements
- Position in the food chain
- 3,4omnivore and small animals
The values are indicative and come from the FishBase database. In a particular water, fish behave according to the weather, air pressure, oxygen and food.
Where it was recorded
Fishing districts around which a record of this species exists (GBIF).
- OR Patkový Piesok
- OR Hámre
- Štrkovisko Adamov č. 1
- Štrkovisko Adamov č. 2
- Morava č. 7b
- Štrkovisko Boričky I.
- Štrkovisko Brodské
- Štrkovisko Unín
- Melioračný kanál Tvrdonice
- Štrkovisko Boričky II.
10 fishing districts in total. Show on map
Similar species
Photo credits
- Ruffe: Photo: Tiit Hunt, CC BY-SA 3.0, Wikimedia Commons
- European perch: Photo: Gilles San Martin, CC BY-SA 2.0, Wikimedia Commons
- Zander (pikeperch): Photo: Emőke Dénes, CC BY-SA 4.0, Wikimedia Commons
Minimum sizes, protection periods and permitted fishing methods are set by the fishing regulations and the conditions of the specific fishing district. Check them before you fish.