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BiologyA very euryhaline species, which is frequently found in brackish waters and more sporadically in freshwater (Ref. 3788), preferring still or slow flowing waters in freshwater (Ref. 59043). Pelagic in lakes (Ref. 59043). Adults occur in great schools. Carnivorous, feeds on small crustaceans, worms, mollusks (Ref. 5980) and fish larvae (Ref. 35388). Rarely lives up to 4 years (Ref. 59043).