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BiologyPrimarily in estuaries and lagoons (Ref. 53405). Abundant in mangrove areas and venture in to both fresh and salt waters in native and non-native ranges (Ref. 46816). Forms schools; is mainly nocturnal with intermittent daytime feeding. Feeds on aufwuchs and detritus (Ref. 2), as well as on bivalves and zooplankton (Ref. 28587). Occurs in lower reaches of streams and can tolerate high salinity (Ref. 5723).