Author(s)

S. Neumann-Leitao, M.L. Koening, S.J. Macedo, C. Medeiros, K. Muniz and F.A.N. Feitosa

Abstract

The plankton structure was investigated at the estuary of the River Ipojuca after 1 0 years implantation of a Port Complex. Plankton was sampled in one fixed station. Concurrent hydrological, climatological and chlorophyll a data were taken. The course of the river alteration resulted into an estuary that tends to evolves from a classical towards a coastal lagoon type. Chlorophyll a presented low values for an estuarine mangrove area. Plankton high diversity (> 3.0 bits.ind"*) can be explained by the spatial heterogeneity, although a general biodiversity decrease was registered after port implantation. Phytoplankton presented 98 taxa outranking dia

Keywords