Fish, carp family
Kessler's gudgeon
- Maximum length
- 13cm
- Best water temperature
- 10–20 °C
- Water today (4.6 °C)
- Tolerates it, but slowed down
- Fishing districts near where it occurs
- 1

About the species Kessler's gudgeon
How to recognise it
A small slender fish with an underslung mouth and a pair of barbels at the corners of the mouth. The individual gudgeon species can be told apart reliably only by small details.
Where it lives
Sandy and gravel bottoms of rivers.
What it feeds on
Small invertebrates and insect larvae from the bottom.
Classification under the decree
Decree of the Ministry of the Environment of the SR no. 381/2018 Coll. on fisheries.
Classification
A native species of fish or lamprey (Section 13, paragraph 1 of the decree).
Closed season, minimum size and daily limit
What the Fisheries Act says about Kessler's gudgeon. For guidance only; check it in the fishing regulations of the district.
Species protected all year
Section 10, paragraph 1, point i of the decreefishing prohibited
this species may not be fishedoutside this period
You must not keep a fish of this species. If you happen to catch one, return it to the water as gently as possible.
Summary of Act no. 216/2018 Coll. and Decree no. 381/2018 Coll. (as of 6 Nov 2026). It may be out of date or contain an error, and exceptions apply on some waters. The permit and the fishing regulations of the district are binding. The fishing law, rule by rule.
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 4.6 °C today. The species tolerates this temperature (2 to 26 °C), but the water is colder than the ideal 10 to 20 °C. Fish tend to be slower and pickier.
- tolerates 2 to 26 °C
- best 10 to 20 °C
- typical water today 4.6 °C
- Length
- up to 13 cm
- Oxygen
- Typical oxygen requirements
FishBase pre tento druh rozsah teploty neuvádza, preto teplotné nároky preberáme z príbuzného druhu Hrúz škvrnitý. Sú to len odhady, rozmery vychádzajú z databázy FishBase. 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).
1 fishing district in total. Show on map
Catches of Kessler's gudgeon
Approved catches by anglers on this portal.
Nobody has logged a catch of this species yet. Be the first; once approved it will appear here and on the leaderboard.
Similar species
Photo credits
- Kessler's gudgeon: Photo: Akos Harka, CC BY-SA 3.0, Wikimedia Commons
- Gudgeon: Photo: Viridiflavus at Dutch Wikipedia (Original text: Piet Spaans), CC BY-SA 3.0, Wikimedia Commons
- Vladykov's gudgeon: Photo: Yuriy Kvach, 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.

