Nase
Chondrostoma nasus
Image is an illustrative representation of the species
About this species
The nase (Chondrostoma nasus) is a distinctive freshwater fish known for its bottom-feeding habits and specialized mouth adapted for scraping algae and biofilm from rocks. It inhabits clean, fast-flowing rivers with gravel and stone substrates, where it moves in schools and constantly searches for food. Although not a classic sport predator, it is highly valued by anglers for its activity, persistence, and the technical approach required to catch it. Its behavior and habitat make it a true representative of healthy river ecosystems.
Description
The nase is a streamlined freshwater fish with a slender body and a distinctive underslung mouth designed for scraping food from hard surfaces. Its coloration is usually silver with subtle darker tones along the back.
Habitat
It inhabits medium to large rivers with fast current and clean, oxygen-rich water. It prefers gravel and rocky bottoms where algae and microorganisms develop.
Behaviour
Nase are schooling fish that spend most of their time near the bottom, actively feeding by scraping algae and organic matter from stones. They are constantly moving and rarely stay in one place for long.
Size & Growth
Most specimens are moderate in size, but in good river systems, nase can grow significantly larger. Growth depends on water quality and food availability.
Interesting Facts
- Specialized mouth adapted for scraping food
- Strong indicator of clean and healthy rivers
- Often found in large schools
- Highly active during the day
Photo credit:By André Karwath aka Aka - Own work, CC BY-SA 2.5, Link
Fishing tips
How to catch
Best time:
- Spring and summer, during stable water conditions
Baits:
- Dough
- Bread
- Small natural baits
Techniques:
- Float fishing
- Light feeder fishing
Tips:
- Target fast-flowing sections with gravel bottom
- Use light and sensitive tackle
- Present bait naturally near the bottom