Reproductive biology and feeding of Curimatella lepidura (Eigenmann & Eigenmann) (Pisces, Curimatidae) in Juramento reservoir, Minas Gerais, Brazil-Reference-Cited by-同舟云学术

Reproductive biology and feeding of Curimatella lepidura (Eigenmann & Eigenmann) (Pisces, Curimatidae) in Juramento reservoir, Minas Gerais, Brazil

Published:2006-06 Issue:2 Volume:23 Page:314-322
ISSN:0101-8175
Container-title:Revista Brasileira de Zoologia
language:
Short-container-title:Rev. Bras. Zool.

Author:

Alvarenga Érika R. de¹,Bazzoli Nilo²,Santos Gilmar B.³,Rizzo Elizete¹

Affiliation:

1. Universidade Federal de Minas Gerais, Brasil

2. Universidade Federal de Minas Gerais, Brasil; Pontifícia Universidade Católica de Minas Gerais, Brasil

3. Pontifícia Universidade Católica de Minas Gerais, Brasil

Abstract

Reproductive biology and feeding of Curimatella lepidura (Eigenmann & Eigenmann, 1889) were studied in Juramento reservoir, São Francisco River basin, Southeastern Brazil. Histological analyses and gonadosomatic indexes revealed females and males in reproductive activity from October to March and total spawning occurring from January to March coupled with the peak of spermiating males. In the dry season, the fishes accumulated energetic reserves for reproduction during a short rainy season. The species presented sexual dimorphism, being females larger than males and sexual maturation occurring close to 7.7 cm standard length for females and 7.1 cm for males. C. lepidura presented iliophagous feeding habit, ingesting mainly sediment/detritus and a small amount of acari, algae, Tricoptera insects and Ostracoda crustaceans, suggesting a probable role in nutrient recycling of the Juramento reservoir.

Publisher

FapUNIFESP (SciELO)

Subject

Animal Science and Zoology

Link

http://www.scielo.br/pdf/rbzool/v23n2/a02v23n2.pdf

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