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Reproductive biology of the fish creek Laetacara araguaiae (Perciformes, Cichlidae)

Grant number: 12/13413-9
Support type:Scholarships in Brazil - Master
Effective date (Start): March 01, 2013
Effective date (End): February 28, 2014
Field of knowledge:Agronomical Sciences - Fishery Resources and Fishery Engineering
Principal Investigator:Rosicleire Veríssimo Silveira
Grantee:Amanda Pereira dos Santos Silva
Home Institution: Faculdade de Engenharia (FEIS). Universidade Estadual Paulista (UNESP). Campus de Ilha Solteira. Ilha Solteira , SP, Brazil


Laetacara araguaiae is a South American Cichlidae that was recently described by OTTONI & COSTA (2009), which together with other species of the genre, is considered as ornamental fish, due it high, colors diversity and beautifulness, which are attractive for small and great aquarists. The knowledge of the gonadal histologic characteristic compose a basic and primordial step for the comprehension of the natural reproduction in fish and the identification and characterization of the germ cells during the oogenesis, allow imply about the gonad functional stage on the determination of the species reproductive period. Females of Laetacara araguaiae are being collect since April 2012 to March 2013 in the Dois Córregos River (S 20º 25' 00.5" W 051º 28' 38.4''. Alt: 329m), Véstia, Selvíria - MS. It total length and total weight are measure, it gonads are remove, weighted, fragmented, fixed and process to transmission electronic microscopy and light microscopy. So, considering that the recent described species, exampling Laetacara araguaiae, constitute a very vulnerable group to its habitat degradation, it is necessary studies that provide basic answers for reproduction, preservation and management questions. Therefore, it is intended to realize the morphologic characterization of the female reproductive cycle and the ultrastructural analyze of Laetacara araguaiae oogenesis, as well the first maturation size and the reproduction type, because the knowledge about the basics studies of the reproductive biology is the first point to its application in the aquiculture and other correlated areas, like behavior and ecology. (AU)

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DOS SANTOS-SILVA, AMANDA PEREIRA; DE SIQUEIRA-SILVA, DIOGENES HENRIQUE; NINHAUS-SILVEIRA, ALEXANDRE; VERISSIMO-SILVEIRA, ROSICLEIRE. Oogenesis in Laetacara araguaiae (Ottoni and Costa, 2009) (Labriformes: Cichlidae). ZYGOTE, v. 24, n. 4, p. 502-510, AUG 2016. Web of Science Citations: 0.
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
SILVA, Amanda Pereira dos Santos. Biologia reprodutiva de fêmeas de laetacara araguaiae (labriformes: cichlidae). 2014. 64 f. Master's Dissertation - Universidade Estadual Paulista "Júlio de Mesquita Filho" Faculdade de Engenharia (Campus de Ilha Solteira)..

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