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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Reproductive biology of Neotropical tetra fishMimagoniates lateralis(Nichols, 1913) (Characiformes, Characidae), an endangered species of blackwater streams of southeastern Brazil

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Author(s):
de Moraes, Mariana Bissoli [1] ; Ferreira, Fabio Cop [2] ; Souza, Ursulla Pereira [3]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Lab Ictiol Ribeirao Preto LIRP, Fac Filosofia Ciencias & Letras Ribeirao Preto, Ribeirao Preto - Brazil
[2] Univ Fed Sao Paulo, Programa Posgrad Biodiversidade & Ecol Marinha &, Inst Mar, Campus Baixada Santista, Santos, SP - Brazil
[3] Univ Santa Cecilia, Programa Posgrad Sustentabilidade Ecossistemas Co, Santos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Studies on Neotropical Fauna and Environment; v. 56, n. 3, p. 234-237, SEP 2 2021.
Web of Science Citations: 0
Abstract

This study provides for the first time information about the reproductive biology ofMimagoniates lateralis, an endangered species of inseminating Neotropical tetra that occurs in blackwater streams of southeastern Brazil. We analyzed 404 individuals, of which 214 were females, 117 were males, and 73 were immature juveniles. The sex ratio was 1.83 females/males. Males were larger than females. The estimated size at first maturation for females was 22.2 mm SL, and for males 23.4 mm SL. We also analyzed 94 ovaries from mature females, and the estimated absolute fecundity was 116.37 +/- 26.68 oocytes, the oocyte diameter varying from 0.1 to 1.0 mm. The spawning type was classified as multiple, with two modal values corresponding to different oocyte lots. These data contribute to substantiate future assessments of the conservation status ofM. lateralis, as well as future attempts to guarantee the preservation of this species and its natural habitat. (AU)