Spatial variations in fish assemblage structure in a southeastern Brazilian reservoir

Brazilian Journal of Biology = Revista Brasleira De Biologia
B O SanchesG B Santos

Abstract

We assessed the fish assemblage structure and composition of Nova Ponte Reservoir (Araguari River, Upper Paraná Basin, Brazil). We observed significant differences in abundance (p = 0.0003), richness (p = 0.0005) and diversity (p = 0.02) between lacustrine and riverine zones of the reservoir. Nine species were significantly more abundant in the riverine region: Astyanax altiparanae, Astyanax gr. fasciatus, Galeocharax knerii, Hoplias intermedius, Hypostomus sp., Leporinus friderici, Leporinus obtusidens, Pimelodus maculatus and Schizodon nasutus. The results indicated a longitudinal gradient in the composition and abundance of fishes in Nova Ponte Reservoir, reinforcing the importance of freely flowing riverine reaches for conserving native neotropical ichthyofauna and reflecting the strong adaptation of these species to riverine systems.

References

Dec 30, 2004·Brazilian Journal of Biology = Revista Brasleira De Biologia·E F OliveiraC V Minte-Vera
Mar 16, 2007·Proceedings of the National Academy of Sciences of the United States of America·N Leroy PoffDavid M Pepin
Feb 24, 2009·Brazilian Journal of Biology = Revista Brasleira De Biologia·A A AgostinhoL C Gomes

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Citations

Jun 1, 2017·Brazilian Journal of Biology = Revista Brasleira De Biologia·G Schork, E Zaniboni-Filho
Feb 5, 2019·Environmental Science and Pollution Research International·Lianthuamluaia LianthuamluaiaYusuf Ali
May 8, 2019·Environmental Science and Pollution Research International·Kavitha Mandhir SandhyaBablu Kumar Naskar
Sep 24, 2020·Brazilian Journal of Biology = Revista Brasleira De Biologia·C M MunizL C Gomes

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