title: Effect of temperature on embryonic development of Melanotaenia boesemani (Allen and Cross, 1982).
abstract: The present study aimed to provide data on the time required for Melanotaenia boesemani to complete embryonic development, and to investigate the influence that incubation at different temperatures caused in this species. The effects of temperature on the time and hatching rate are presented, as well as information related to embryonic development stages. After fertilization, the eggs were kept in incubators at 23, 26, 29 or 32°C and observed at predetermined times until the moment of hatching. Stages of development were identified and classified according to morphological and physiological characteristics. Oil droplets were visualized inside the eggs as well as filament adhesion present at the chorion. Embryonic development was similar to that observed in other species of the genus Melanotaenia with hatching and faster development in higher temperatures.
authors.affiliation: Universidade Estadual do Norte Fluminense Darcy Ribeiro,Avenida Alberto Lamego,2000,LZNA/CCTA,Sala 112,Postal Code: 28013-620,Parque Califórnia,Campos dos Goytacazes,RJ,Brazil.
authors.forename: Marcella Costa
authors.initials: MC
authors.lastname: Radael
authors.affiliation: Universidade Estadual do Norte Fluminense Darcy Ribeiro,Avenida Alberto Lamego,2000,LZNA/CCTA,Sala 112,Postal Code: 28013-620,Parque Califórnia,Campos dos Goytacazes,RJ,Brazil.
authors.forename: Leonardo Demier
authors.initials: LD
authors.lastname: Cardoso
authors.affiliation: Universidade Estadual do Norte Fluminense Darcy Ribeiro,Avenida Alberto Lamego,2000,LZNA/CCTA,Sala 112,Postal Code: 28013-620,Parque Califórnia,Campos dos Goytacazes,RJ,Brazil.
authors.forename: Dalcio Ricardo
authors.initials: DR
authors.lastname: de Andrade
authors.affiliation: Universidade Estadual do Norte Fluminense Darcy Ribeiro,Avenida Alberto Lamego,2000,LZNA/CCTA,Sala 112,Postal Code: 28013-620,Parque Califórnia,Campos dos Goytacazes,RJ,Brazil.
authors.forename: André Veloso
authors.initials: AV
authors.lastname: Ferreira
authors.affiliation: Universidade Estadual do Norte Fluminense Darcy Ribeiro,Avenida Alberto Lamego,2000,LZNA/CCTA,Sala 112,Postal Code: 28013-620,Parque Califórnia,Campos dos Goytacazes,RJ,Brazil.
authors.forename: Douglas
authors.initials: D
authors.lastname: da Cruz Mattos
authors.affiliation: Universidade Estadual do Norte Fluminense Darcy Ribeiro,Avenida Alberto Lamego,2000,LZNA/CCTA,Sala 112,Postal Code: 28013-620,Parque Califórnia,Campos dos Goytacazes,RJ,Brazil.
authors.forename: Manuel Vazquez
authors.initials: MV
authors.lastname: Vidal
mesh_terms: D000818:Animals; D036703:Blastula / Q000166:cytology / Q000196:embryology; D004625:Embryo, Nonmammalian / Q000166:cytology / Q000196:embryology*; D047108:Embryonic Development / Q000502:physiology*; D005260:Female; D005306:Fertilization; D006863:Hydrogen-Ion Concentration; D007814:Larva / Q000166:cytology / Q000254:growth & development; D008297:Male; D023701:Smegmamorpha / Q000196:embryology* / Q000254:growth & development; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry; D015053:Zygote / Q000166:cytology / Q000254:growth & development
chemical_list: D014867:Water
keywords: Melanotaeniidae; Ontogeny; Ornamental fish