Description and characteristics
The ziege (Pelecus cultratus) is a medium-sized cyprinid with a very laterally compressed, silvery body, having a blade-like shape from which it gets its name. It has an upward-facing mouth and a serrated, keeled ventral line.
Habitat and distribution
It inhabits the freshwater and brackish waters of the Danube Delta — branches, limans and canals, living in schools near the surface in calm waters.
Diet and behaviour
It feeds on insects, larvae, crustaceans and small fish, hunting actively near the surface. A fast, agile schooling species.
Reproduction
Spawning occurs in spring, with females laying pelagic eggs. The fry grow quickly and mature within a few years.
Economic and ecological importance
The ziege has local fishing value. Ecologically, it contributes to freshwater diversity and is prey for larger predators.
Threats and conservation
It is sensitive to pollution and loss of spawning areas. Protection of clean waters is important.
Fishing and legal minimum size
It is caught with nets and surface gear. In the table of minimum legal sizes, the ziege (Pelecus cultratus) has a minimum legal size of 20 cm.
Conclusion
The ziege is a distinctive schooling cyprinid, important for the biodiversity of the Danube Delta.