Composition and seasonal variation of the ichthyofauna from upper Rio Paraguaçu (Chapada Diamantina, Bahia, Brazil)



Document title: Composition and seasonal variation of the ichthyofauna from upper Rio Paraguaçu (Chapada Diamantina, Bahia, Brazil)
Journal: Brazilian archives of biology and technology
Database: PERIÓDICA
System number: 000348457
ISSN: 1516-8913
Authors: 1
2
Institutions: 1Universidade Estadual de Feira de Santana, Departamento de Ciencias Biologicas, Feira de Santana, Bahia. Brasil
2Universidade Federal do Rio de Janeiro, Departamento de Ecologia, Rio de Janeiro. Brasil
Year:
Season: Jul
Volumen: 50
Number: 4
Pages: 663-672
Country: Brasil
Language: Inglés
Document type: Artículo
Approach: Experimental
English abstract The aim of this work was to characterize the composition of the ichthyofauna of the upper course of the Rio Paraguaçu. Two excursions were carried out, one in the dry season, and the other in the rainy season, with 36 localities sampled. A total of 63 species were collected. Multivariate analyses indicated that abiotic variables such as the channel order and altitude were the main influences on the number of species present. The number of species in each excursion was equivalent in the two seasons, suggesting that seasonal changes have little influence on the ichthyofauna of this area
Disciplines: Biología
Keyword: Biología acuática,
Ecología,
Peces,
Comunidades acuáticas,
Factores abióticos,
Estacionalidad,
Rio Paraguacu,
Chapada Diamantina
Keyword: Biology,
Aquatic biology,
Ecology,
Fish,
Aquatic communities,
Abiotic factors,
Seasonality,
Paraguacu river,
Chapada Diamantina
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