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Early Growth and Developmental Characteristics of Chinese Bahaba (Bahaba taipingensis)

文献类型： 外文期刊

作者： Yan, Lin 1 ; Ren, Yuanhao 2 ; Ai, Tongxi 2 ; Shi, Jianshe 1 ; Wang, Junjie 3 ; Yan, Kuoqiu 1 ; Jiang, Keji 2 ;

作者机构： 1.Guangdong Beluga Whale Marine Biotechnol Co Ltd, Huizhou 516300, Peoples R China

2.Chinese Acad Fishery Sci, East China Sea Fisheries Res Inst, Minist Agr & Rural Affairs, Key Lab East China Sea Fishery Resources Exploitat, Shanghai 200090, Peoples R China

3.South China Normal Univ, Sch Life Sci, Guangzhou 510631, Peoples R China

关键词： Bahaba taipingensis; artificial breeding; embryonic development; larva; juveniles and young fish; morphological observation

期刊名称：FISHES （ 影响因子：2.4； 五年影响因子：2.4 ）

ISSN：

年卷期： 2024 年 9 卷 8 期

页码：

收录情况： SCI

摘要： The Chinese bahaba (Bahaba taipingensis), belonging to the Sciaenidae family, is one of the largest croakers with a limited geographical distribution. It is a critically endangered fish species according to the IUCN and a protected animal in China. In this study, the morphological characteristics of Chinese bahaba were observed and analyzed across different developmental stages, namely, the embryonic, larval, juvenile, and young fish stages. The results demonstrated that the mature eggs had a terminal yolk and a single oil globule. The eggs remained floating, and the mean diameters of the fertilized egg and oil globules were 1.14 +/- 0.09 mm and 0.35 +/- 0.07 mm, respectively. The findings revealed that the embryonic development of Chinese bahaba occurs broadly in seven stages, including the blastogenesis, cleavage, blastocyst, gastrula, neuro embryonic, organ differentiation, and membrane emergence stages, which lasted approximately 27 h and 10 min until hatching under 22.5 +/- 0.5 degrees C. After 70 d, the larvae developed into young fish with a mean total length and body length of 97.75 +/- 12.61 and 75.27 +/- 13.27 mm, respectively. The digestive organs and the swim bladder began to differentiate, and the swim bladder, bladder duct, intestine, stomach, and mouth gradually formed at 2 d after hatching. Juvenile development occurred via six stages and there were certain differences in the morphological characteristics of Chinese bahaba across the different stages of growth and development. This study provides a theoretical reference for studying the growth, development, and artificial breeding of Chinese bahaba.

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