ABSTRACT. Fishes were sampled by beach seine during the day and night at the high and low sygygy tides, on asandy beach at the southeast coast ofBrazil. The quantitative results appear to indicate a larger concentration of fish in the surf zone of this beach, in low tides at the start and end of the day. Only eight from the 17 most abundant taxa, appeared to have been influenced singly or in combination by the factors ofthe moon, day, night and tide.

Despite its importance, most ichthyoplankton studies in the South

ABSTRACT. A total of6,575 larvae in the pre flexion, flexion and post-flexion stages of 15 families, 26 genera and 29 species were captured in the surf zone of Pontal do Sui beach, Parana, Brazil. Samples of the families Gerreidae and Scianidae predominated and larvae of Eucinostomus argenteus (Baird&Girard, 1854) (Agassiz, 1829) were the most dominant species. Greater abundance of larvae was observed during the summer, followed by winter and in a less extent during spring and autumn. The number of species was greater in the summer, and there were no significant differences in the rest of the seasons.