The present study aimed to identify the Cladocera species present in 15 samples of zooplankton, taken occasionally between 1981 and 2001, from the Counties of Recife, Jaboatão dos Guararapes, Paulista e Escada (state of Pernambuco, Brazil). In total, 32 species were reported; 10 of them represent first records, which increased to 51 the number of species known to occur in Pernambuco state. The highest cladoceran species richness was observed in water bodies where macrophytes were more abundant and with more samples available.
zooplankton; cladocerans; Brazilian Northeast
