Embryonic and early larval development of two marine angelfish, Centropyge bicolor and Centropyge bispinosa

Mendonça, Raoani Cruz, Chen, Jun Yu, Zeng, Chaoshu, and Tsuzuki, Mônica Yumi (2020) Embryonic and early larval development of two marine angelfish, Centropyge bicolor and Centropyge bispinosa. Zygote, 28 (3). pp. 196-202.

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Abstract

Marine angelfish (family: Pomacanthidae) are among the most sought-after fish species in the saltwater aquarium trade. However, there is a lack of information in the literature on their early ontogeny. The objective of this study was to describe the embryonic and early larval development of two dwarf angelfish, the bicolour angelfish, Centropyge bicolor and the coral beauty angelfish, Centropyge bispinosa. The eggs of these two species were obtained from spontaneous spawning of the broodstock fish in captivity and incubated at 26.0 ± 0.2°C throughout the study. Fertilized eggs (n = 15) of both species are transparent, pelagic and spherical; the mean diameters of the eggs were measured at 703.6 ± 7.8 μm for C. bicolor and 627.6 ± 7.8 μm for C. bispinosa. The eggs of both species possessed a narrow perivitelline space, smooth and thin chorion, a homogenous and non-segmented yolk as well as a single oil globule. Overall, the observed embryonic development pattern of C. bicolor and C. bispinosa was very similar, and the main difference was the embryonic pigmentation pattern, which only became evident close to hatching. Larvae of both species started hatching at 13 h 30 min after fertilization, and the larval characteristics of both species also showed high levels of similarities. However, the mouth opening time for C. bicolor was 72 h after hatching (AH) and 96 AH for C. bispinosa. In general, the observed early ontogeny of C. bicolor and C. bispinosa also resembled that of other Centropyge species documented in the literature.

Item ID: 67302
Item Type: Article (Research - C1)
ISSN: 1469-8730
Keywords: Centropyge; Early larvae; Embryo; Ontogeny; Pomacathidae
Copyright Information: © Cambridge University Press 2020.
Funders: Federal Agency for Support and Evaluation of Graduate Studies in Education, Brazil (CAPES)
Projects and Grants: CAPES Sustainability and Innovation of native marine species’, SCIENCES OF THE SEA 2 no. 43/2013
Date Deposited: 16 Mar 2021 22:22
FoR Codes: 31 BIOLOGICAL SCIENCES > 3109 Zoology > 310903 Animal developmental and reproductive biology @ 40%
30 AGRICULTURAL, VETERINARY AND FOOD SCIENCES > 3005 Fisheries sciences > 300501 Aquaculture @ 60%
SEO Codes: 10 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 1002 Fisheries - aquaculture > 100202 Aquaculture fin fish (excl. tuna) @ 60%
28 EXPANDING KNOWLEDGE > 2801 Expanding knowledge > 280102 Expanding knowledge in the biological sciences @ 40%
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