Embryonic and larval development of serpae tetra Hyphessobrycon eques (Steindachner, 1882)

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dc.authoridCELIK, PINAR/0000-0002-4417-3574
dc.contributor.authorCelik, Pinar
dc.contributor.authorCirik, Sukran
dc.date.accessioned2025-01-27T20:24:57Z
dc.date.available2025-01-27T20:24:57Z
dc.date.issued2020
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractIn this study, the embryonic and larval development stages of one of the most important ornamental fish serpae tetra (Hyphessobrycon eques) are described. The early life stage is documented from fertilization until the beginning of the juvenile period. The fertilized eggs (the average diameter = 938.55 +/- 35.20 mu m) were incubated at a water temperature of 26 +/- 0.5 degrees C. The cleavage finished in 1:10 hr (=h) and the early blastula stage occurred at 1:26 hr post fertilization (hpf). The gastrulation started at 3:05 hpf, and 50% epiboly was observed at 3:25 hpf. Segmentation stage was monitored at 7:26 hpf. Embryonic developmental stage was completed and hatching occurred 20-21 hpf. The total length (TL) of newly hatched larvae was 2.64 +/- 0.21 mm. The larval development of serpae tetra was divided into four different periods: Yolk-sac larva (1-4 DAH, TL = 2.77 +/- 0.09 mm - 3.85 +/- 0.11 mm), preflexion larva (5-12 DAH), flexion larva (13-15 DAH, TL = 5.78 +/- 0.46 mm on the 15th day) and post-flexion larva (16-30 DAH, TL = 10.7 +/- 0.27 mm on the 28th-30th days). The mouth and anus are closed at 1 DAH. The mouth and anus opened at 4 DAH. Exogenous feeding started on the 4th day. The first gulping of the swim bladder was on days 3. The larva begins to swim freely, and the yolk sac was completely consumed at 4 DAH. Histological structures of the eye and brain of new hatched larva were clearly identified at 1 day after hatching (DAH). According to histological findings, the digestive system (stomach, intestine) started to develop and the liver could be seen on the ventral side of the swim bladder at 5 DAH. No histological difference was observed between the anterior intestine and the posterior intestine at 15-16 DAH. The larval metamorphosis was completed, and the larvae transformed into juveniles at 28-30 DAH.
dc.identifier.doi10.1111/are.14375
dc.identifier.endpage306
dc.identifier.issn1355-557X
dc.identifier.issn1365-2109
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85075457794
dc.identifier.scopusqualityQ2
dc.identifier.startpage292
dc.identifier.urihttps://doi.org/10.1111/are.14375
dc.identifier.urihttps://hdl.handle.net/20.500.12428/22393
dc.identifier.volume51
dc.identifier.wosWOS:000497476700001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofAquaculture Research
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WoS_20250125
dc.subjectcharacidae
dc.subjectembryonic development
dc.subjectHyphessobrycon eques
dc.subjectlarval development
dc.subjectserpae tetra
dc.titleEmbryonic and larval development of serpae tetra Hyphessobrycon eques (Steindachner, 1882)
dc.typeArticle

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