Spatial and temporal patterns of ciliate species composition (Protozoa: Ciliophora) in the plankton of the Upper Paraná River floodplain
Autor: | Gustavo Mayer Pauleto, Fábio Amodêo Lansac-Tôha, A. F. S Brão, Claudia Costa Bonecker, Paulo Roberto Bressan Buosi, Luiz Felipe Machado Velho |
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Rok vydání: | 2009 |
Předmět: |
Population Density
Ciliate geography geography.geographical_feature_category Floodplain Ecology Population Dynamics Pelagic zone Biology Plankton biology.organism_classification Population density Hymenostomatida Rivers Littoral zone Animals Protozoa Ciliophora General Agricultural and Biological Sciences Brazil |
Zdroj: | Brazilian Journal of Biology. 69:517-527 |
ISSN: | 1519-6984 |
Popis: | Spatial and temporal patterns of plankton ciliates species composition in the Paraná River floodplain were investigated. Samplings were carried out in twelve environments in two distinct hydrological periods (limnophase and potamophase). A total of 61 species of ciliates were recorded, and among them 21 are classified as pelagic while 40 are considered preferentially as littoral species. The registered species belong to eleven orders, and among them, Prostomatida was the most specious followed by Hymenostomatida and Peritrichida. The ciliate species composition was significantly distinct between periods, but not among environments. In this way, typically pelagic species characterized the ciliate community during the limnophase period, while the littoral species were predominant during the potamophase period. Our results strongly support the idea of the flood pulse as the main factor driving the composition pattern of the planktonic ciliates community in the Paraná River floodplain. |
Databáze: | OpenAIRE |
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