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Effect of coastline properties and wastewater on plankton composition and distribution in a stressed environment on the north coast of Olinda-PE (Brazil)

2005; Instituto de Tecnologia do Paraná (Tecpar); Volume: 48; Issue: 6 Linguagem: Inglês

10.1590/s1516-89132005000800018

1678-4324

Luci Cajueiro Carneiro Pereira, José A. Jiménez, Maria Luise Koening, Fernando de Figueiredo Porto Neto, Carmen Medeiros, Rauquı́rio Marinho da Costa,

Marine and coastal ecosystems

A study of the structure of the plankton community along the coastal zone of the Casa Caiada-Rio Doce area (Pernambuco, Brazil) is presented. The results obtained indicated that in the protected zones the water presented high turbidity, high temperature, low salinity and high nutrient and oxygen rates. All of these conditions were responsible for the reduction in plankton diversity and an increase in the biomass of the most opportunistic (r-strategist) species e.g. Gyrosigma balticum and Bacillaria paxillifera (Phytoplankton) and Euterpina acutifrons (Zooplankton). The differences found with respect to others area studies performed in pristine conditions indicated that plankton structure could be used as an environmental health indicator and that, in this specific area, it was indicative of a poor quality coastal environment.