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- Title
Length–length and length–weight relationships for 48 fish species from reservoirs of the Paraná State, Brazil.
- Authors
Gubiani, Éder A.; Gomes, Luiz C.; Agostinho, Angelo A.
- Abstract
Length–length and length–weight relationships was estimated for 48 fish species collected in 30 neotropical reservoirs located in the State of Paraná, Brazil. Significant relations were found for all species. The values of the parameter slope ( b) in the length–weight relationship ranged from 2.49 to 3.46 for grouped sexes, and from 2.66 to 3.15 for separated sexes. Differences between sexes (indication of sexual dimorphism) were verified for 20 species. Males exhibited greater lengths than females for Astyanax janeiroensis, Bryconamericus iheringii, Geophagus brasiliensis, Glanidium ribeiroi and Hypostomus derbyi, whereas females attained greater lengths than males for the other 15 species examined in this study.
- Subjects
BRAZIL; FISHES; RESERVOIRS; SEX differences (Biology); WEIGHTS &; measures
- Publication
Lakes & Reservoirs: Research & Management, 2009, Vol 14, Issue 4, p289
- ISSN
1320-5331
- Publication type
Article
- DOI
10.1111/j.1440-1770.2009.00411.x