The construction of an industrial port complex in the estuarine area of Suape in 1979/1984 caused great geomorphological, sedimentological and hydrodynamical changes. Major impacts such as the building of dams, embankments, channel construction and reefline openings occurred in the estuary of the Ipojuca River. (Neumann et al., 1998). The impact assessment, carried out by the Department of Oceanography of the Federal University of Pernambuco, included hydrology and plankton studies (Neumann et al., 1998; Neumann Leitão and Matsura-Tundisi, 1998; Neumann- Leitão et al., 1999).
This paper characterizes the planktonic flora of the estuary of the Ipojuca River after the port construction in comparison with previous observed data (Eskinazi-Leça and Koening, 1985/86).