Background. Crimean barbel, Barbus tauricus Kessler, 1877, is a riverine cyprinid fish commonly found in well-oxygenated streams with gravel bottom in the Black and Azov Sea basins. Its population has plummeted in the Salgir, Chornaya, and Alma rivers (Crimea) and hence this fish has been listed as Vulnerable on the IUCN Red List. The knowledge about its age, growth, length-weight relation, spawning period, and diet composition are either scarce or not available. This paper aimed to fill the existing gaps in the knowledge by describing selected biological characteristics of B. tauricus in the Ciftekavak Stream, in the outskirts of the city of Rize, NE Turkey.