Ichthyofauna of the Leão river, Iguaçu River basin, Paraná, Brazil
Studies related to fish communities (ichthyofauna) in rivers are necessary to understand their structure, as they provide information and are an important step for the ecological management of a site. In this sense, the objective of this work was to carry out a spatiotemporal survey of the ichthyofa...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
2024
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| Subjects: | |
| Online Access: | https://dialnet.unirioja.es/servlet/oaiart?codigo=10265478 |
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| Summary: | Studies related to fish communities (ichthyofauna) in rivers are necessary to understand their structure, as they provide information and are an important step for the ecological management of a site. In this sense, the objective of this work was to carry out a spatiotemporal survey of the ichthyofauna of the Leão River, Iguaçu River basin, in the 8 de Junho Settlement, in Laranjeiras do Sul, Paraná. From august/2022 to april/2023, 4 collection campaigns were carried out, one in each season of the year, with sampling at 4 different points along a stretch of ~5.28 km of the Leão River. Gillnets, picaré, longline and cast nets were used for the collections. In each campaign, the identification and biometrics of the collected fish were carried out, as well as the evaluation of abiotic data from the water. In total, 214 fish were obtained, distributed in 4 orders, 8families, 11 genera and 14 species, all native to the river basin. The results obtained for the Shannon-Wiener (H’) and Pielou (E) indices were, respectively, H’= 0.8264 and E= 0.1540, demonstrating that the Leão River has a high diversity of species, but low equity (distribution) along the course where the study was carried out. The most frequent species verified in the survey were in order Hypostomus derbyi, Psalidodon bifasciatus, Ancistrussp. and Rhamdia branneri. The species with the smallest and largest lengths were Phalloceros harpagosand R. branneri, respectively. It was possible to verify that the Leão River has species of interest for both aquaculture and aquarium keeping. |
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