Despite the high number of species found in the present study,
the species rarefaction curves are approaching but have not
reached the asymptote, as also observed by Lindblad (2001a,b),
Gilbert et al. (2002) and Ferrer and Gilbert (2003). Nevertheless,
the majority of the presumed species were recorded, according to
the estimators (approximately 83%), indicating that the sampling
effort was reasonably efficient and sufficient to make comparisons
among areas.