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Fish and crayfish
in our water
The waters of RD Tolmin are home to native species of fish and crayfish, including the famous marble trout, grayling, rainbow trout, and native crayfish. Discover the richness of our rivers and lakes and experience the unique world beneath the surface.
Marble trout
The marble trout (Salmo marmoratus) is the queen of our waters — a unique and native species found only in the Soča River basin. Its characteristic marbled pattern and silver-gray color reflect the pure, wild flow shaped by the alpine valleys and karst gorges of the Soča region.
More about Marble trout →
Brown trout
The brown trout is not a native species in our waters; it was introduced at the beginning of the 20th century. It successfully hybridizes with the marble trout, and their offspring are also fertile.
More about Brown trout →
Hybrids
The external appearance of hybrids is very diverse and varied. Hybrids can closely resemble marble trout, show many intermediate forms with characteristics of both species, or differ only slightly from brown trout.
More about Hybrids →
Rainbow trout
The rainbow trout (California trout) was introduced into our rivers through fish farm breeding, primarily as a stocking measure to enhance sport fishing opportunities.
More about Rainbow trout →
Grayling
Alongside the marble trout, the grayling is the only native salmonid species in our waters. There is also the Soča grayling, which differs from the grayling found in the Sava basin by its more grayish body color and the absence of black spots on the front part of its body.
More about Grayling →
Barbel
Like the chub, it is an endemic cyprinid species of the Adriatic river basin. Similar to the chub, it was locally referred to as "barbel," after its relative from the Danube basin.
More about Barbel →
Chub
It is an endemic cyprinid species characteristic of the Adriatic river basin. It resembles the chub from the Danube basin, which is why it was long referred to simply as "chub" in our region.
More about Chub →
Other fish and crayfish
In addition to the mentioned fish species that are also of interest for sport fishing, our rivers are home to the following smaller fish species and crayfish, which are not fished but are equally important for the river ecosystem:
More about Other fish and crayfish →
