2014
DOI: 10.1017/s0967199414000069
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Description of the ontogenic and larval period of discus fish (Symphysodon aequifasciatus)

Abstract: The aim of this study was to describe the embryonic and larval development of discus fish (Symphysodon aequifasciatus), and to determine the time required, hours post fertilization (hpf), for the emergence of various structures. To describe embryonic and larval stages, observations were made at regular periods under an optical microscope and images were taken with a digital camera attached to a microscope. The average temperature reached in the experimental tank was 27.9°C. Important facts in embryonic and lar… Show more

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Cited by 8 publications
(8 citation statements)
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“…The differentiation of head and tail in embryonic development, and the appearance of the optic primordium and the somites had lower hpf values at all temperatures when compared with results obtained by Marimuthu & Haniffa (2007), Radael (2009) and Mattos et al (2015). This difference is probably related to the characteristics of the studied species and larval development level at the time of hatching.…”
Section: Discussionsupporting
confidence: 69%
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“…The differentiation of head and tail in embryonic development, and the appearance of the optic primordium and the somites had lower hpf values at all temperatures when compared with results obtained by Marimuthu & Haniffa (2007), Radael (2009) and Mattos et al (2015). This difference is probably related to the characteristics of the studied species and larval development level at the time of hatching.…”
Section: Discussionsupporting
confidence: 69%
“…Embryonic development time in this study showed a difference in function at the experimental temperatures used in all treatments. In general, the time to occurrence to events was faster than that observed in other tropical fish (Ferreira, 2007; Radael et al 2013; Mattos et al 2015).…”
Section: Discussionmentioning
confidence: 77%
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“…around 12 hpf in two African cichlids, Oreochromis niloticus and Astatotilapia burtoni [ 82 , 100 ], and 4 hpf in two American cichlids, Symphysodon aequifasciatus and Amphilophus spp. [ 83 , 101 ]. Therefore, we set out to investigate the maternal mRNA investment in cichlid eggs almost immediately after fertilization (up to 3 hpf) to minimize the effects of RNA degradation during early development.…”
Section: Discussionmentioning
confidence: 99%