Abstract
The crabs of the family Ocipodidae are abundant in estuary ecosystems. The foraging activity of the Uca genus may have top-down effects on meiofauna communities and microphytobenthos biomass when the distribution of the fiddler crabs occurs in high density. The present study is to evaluate experimentally the top-down effect of Uca burgersi on meiofauna and microphytobenthos. The study was…