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Embryonic Development of Cuban Gar ( Atractosteus tristoechus ) Under Laboratory Conditions
Author(s) -
Comabella Y.,
Canabal J.,
Hurtado A.,
GarcíaGalano T.
Publication year - 2014
Publication title -
anatomia, histologia, embryologia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.34
H-Index - 35
eISSN - 1439-0264
pISSN - 0340-2096
DOI - 10.1111/ahe.12101
Subject(s) - blastula , embryogenesis , hatching , embryo , gastrulation , zygote , biology , anatomy , andrology , zoology , microbiology and biotechnology , ecology , medicine
Summary The embryonic development of Cuban gar ( Atractosteus tristoechus ) was described under controlled laboratory conditions. During the whole embryogenesis seven periods were defined: the zygote (0–½ h), cleavage (¾–4 h), blastula (5–10 h), gastrula (12–20 h), segmentation (24–40 h), pharyngula (48–66 h) and hatching (72–96 h) periods. The stages were based on morphological features, generally readily identified by examination of the embryo with the dissecting stereomicroscope. Hatching occurred 96 ± 4 h after spawning at 28°C.