Fig. 1
Ruffe in the Pärnu River, Estonia. The stony river bed would a source of mollusca, crustaceans and larvae on which ruffe also feed (Wikimedia Commons CC BY-SA 3.0)
Fig. 1 | Journal of Ethnic Foods
Ruffe in the Pärnu River, Estonia. The stony river bed would a source of mollusca, crustaceans and larvae on which ruffe also feed (Wikimedia Commons CC BY-SA 3.0)