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BiologyInhabitant of inshore areas, estuaries, brackish and fresh water of lagoons and lakes, large rivers, harbours, on rock (stone or firm sand) bottom; mainly on well vegetated bottom (Ref.13696, 59043). Most females spawn for the first time at 1 year, males at 2 years, in April-May, rarely until July. Adhesive eggs are deposited on stones, shells and aquatic plants and the males guard the eggs after hatching. Feeds mostly on small fish, as well as a wide variety of invertebrates (Ref.59043).