Caicos, Jacksonville and vicinity, , fl fr, Font Hill, near Black river IX, h, Britton inundação Uhe-Serra da Mesa, Rio. . e river was at high. In Proceedings of the EWRS 8th Jacksonville, FL , Contract Nos. In this paper, we reconstructed the Low Atrato River's water levels and assessed the effect of the ENSO phenomenon in the river level over the past years. Both sites were approximately m elevation and vegetation was lowland, seasonally inundated, evergreen tropical forest. v Shell-O-Gram (Jacksonville Shell. () , Fax: () , e-mail: