Summer density of individuals longer than 40 mm may range from 0.35-6.04/ sq m in certain estuaries. Individuals longer than 60 mm maintained summer range of 36-38 m along bank of tidal creek; some moved up to 375 m (Abraham 1985). Preyed on by many species of fishes and wading birds; blue crab is a major predator of adults in some salt marshes. Predation by adult mummichogs and xanthid crabs may contribute to the high mortality of larvae and juveniles (Kneib 1986). See Weisburg (1986) for a discussion of competition and coexistence among this and other Fundulus species.
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