Reproductive Aspects of Moenkhausia intermedia Eigenmann, 1908 (Pisces, Characidae) in the Upper Paraná River Basin, Brazil
Joint Authors
Orsi, Mário Luís
de Almeida, Fernanda Simões
Casimiro, Armando César Rodrigues
Garcia, Diego Azevedo Zoccal
Source
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-8, 8 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-06-30
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The aim of this work was to determine the reproductive tactic of the population of Moenkhausia intermedia, inhabiting the Capivara Reservoir, lower Paranapanema River.
Four different stretches of the reservoir were selected, and sampling was carried out quarterly, in the period from 2001 to 2004.
Fish were captured utilizing gill nets, cast nets, and seine nets.
Later, fish were identified and measured and had their sex identified.
Here we describe sex proportion, standard length at first maturation (L50), site and period of spawning, fecundity and type of spawning.
The population showed an effective reproductive activity in the area, with the number of females higher than males and L50 corresponding to 6,1 cm and 5,5 cm, respectively.
A greater intensity of spawning occurred in the warmest months.
Reproductive activity was identified in all stretches studied, and the absolute fecundity average was 9611 oocytes per gonad, and the mean relative fecundity corresponded to 1065 oocytes/grams.
American Psychological Association (APA)
Casimiro, Armando César Rodrigues& Garcia, Diego Azevedo Zoccal& de Almeida, Fernanda Simões& Orsi, Mário Luís. 2011. Reproductive Aspects of Moenkhausia intermedia Eigenmann, 1908 (Pisces, Characidae) in the Upper Paraná River Basin, Brazil. ISRN Zoology،Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-499244
Modern Language Association (MLA)
Casimiro, Armando César Rodrigues…[et al.]. Reproductive Aspects of Moenkhausia intermedia Eigenmann, 1908 (Pisces, Characidae) in the Upper Paraná River Basin, Brazil. ISRN Zoology No. 2011 (2011), pp.1-8.
https://search.emarefa.net/detail/BIM-499244
American Medical Association (AMA)
Casimiro, Armando César Rodrigues& Garcia, Diego Azevedo Zoccal& de Almeida, Fernanda Simões& Orsi, Mário Luís. Reproductive Aspects of Moenkhausia intermedia Eigenmann, 1908 (Pisces, Characidae) in the Upper Paraná River Basin, Brazil. ISRN Zoology. 2011. Vol. 2011, no. 2011, pp.1-8.
https://search.emarefa.net/detail/BIM-499244
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-499244