Open AccessHYDROCHEMICAL PARAMETERS AND BIOMETRIC DATA OF FISH SPECIES FROM THE BORORÉ, BILLINGS RESERVOIR, SÃO PAULO, BRAZIL
Author(s) -
Fabiana Harumi Miyasaki,
Sarah Arruda,
Letícia Carneiro Ferreira,
Juliana de Souza Azevedo
Publication year - 2021
Publication title -
boletim do instituto de pesca
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.262
H-Index - 15
eISSN - 1678-2305
pISSN - 0046-9939
DOI - 10.20950/1678-2305/bip.2021.47.e632
Subject(s) - biometric data , fishing , genus , fishery , water quality , biology , biometrics , fish <actinopterygii> , ecology , geography , zoology , environmental science , computer security , computer science
The artisanal fishing is an important activity in Billings Reservoir (São Paulo, Brazil) and there is a paucity of biometric data about the fish in this region. Thereby, it is important to provide data about ichthyofauna that can be used for future management actions. The aim of this study was to present some data about the water quality and biometric data on fish species collected at the Bororé site (Billings Reservoir). In general, the obtained hydrochemical data raised a concern about the water quality because some parameters were above the established limit for body water class 2. A total of 170 fish were captured, corresponding to seven species and one genus. Geophagus brasiliensis was the most representative species (36%), followed by Astyanax bimaculatus (25%) and A. eigenmanniorum (20%). The hepatosomatic index (HSI) data showed differences in energy displacement between the species; the highest HSI values were observed in Hoplias malabaricus (HSImale = 1.33 ± 0.20; HSIfemale = 1.17 ± 0.82) while the smallest HSI was observed in A. fasciatus (HSImale = 0.47 ± 0.14; HSIfemale = 0.68 ± 0.35).