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. 2016 Apr;24(2):301-9.
doi: 10.1017/S0967199415000209. Epub 2015 Jul 10.

Effect of temperature on embryonic development of Melanotaenia boesemani (Allen and Cross, 1982)

Marcella Costa Radael  1 , Leonardo Demier Cardoso  1 , Dalcio Ricardo de Andrade  1 , André Veloso Ferreira  1 , Douglas da Cruz Mattos  1 , Manuel Vazquez Vidal  1
Affiliations

Effect of temperature on embryonic development of Melanotaenia boesemani (Allen and Cross, 1982)

Marcella Costa Radael et al. Zygote. 2016 Apr.

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.

Keywords: Melanotaeniidae; Ontogeny; Ornamental fish.

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