Chronobiology of locomotor activity of frillfin goby Bathygobius soporator from São Sebastião, São Paulo State, Brazil (Teleostei: Perciformes: Gobiidae) - Nomura, Mariene Mitie; Carvalho, Maria Raquel de; Hadel, Valéria Flora; Trajano, Eleonora (Latin American Symposium of Chronobiology, 2005)