The planktonic rotifers of the estuarine lagunar complex of Suape (Pernambuco,Brazil) |
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Authors: | S Neumann-Leitão M N Paranaguá J L Valentin |
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Institution: | (1) Departamento de Oceanografia, Universidade Federal de Pernambuco, Cidade Universitária, 50.739 Recife, Pernambuco, Brazil;(2) Instituto de Estudos do Mar Almirante Paulo Moreira, Rua Kioto, 253, Arraial do Cabo, 28.910 Rio de Janeiro, Brazil |
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Abstract: | We studied spatial and temporal distribution, abundance, diversity, equitability and species associations of the rotifers of the estuarine area of Suape (Pernambuco-Brazil), based on plankton samples collected according to the tidal regime at 11 fixed stations in Suape Bay and the estuaries of Massangana, Tatuoca and Ipojuca Rivers, during February (dry season) and July (rainy season) of 1978. Concurrent hydrological and climatological data were taken. Eight species groups were established. In general, rotifers dominated in the Ipojuca River estuary and stations subject to its influence. Greatest community similarities were observed among nearby stations, during the same tide and season. Hydrological factors influenced the occurrence and distribution of some species, and a close correlation between phytoplankton and rotifers was observed. Pollution in Ipojuca River contributed to diversity. |
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Keywords: | Rotifera estuary tropics diversity associations |
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