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Micro-CT and SEM investigation of sound absorption structure and chambers in the otoliths of Giant Panda fish species-Chinese Bahaba (Bahaba taipingensis) br

文献类型： 外文期刊

作者： Gu, Yang-Guang 1 ; Huang, Hong-Hui 1 ; Liang, Yan 2 ; Fang, Yan 2 ; Dai, Ming 1 ; Ou, You-Jun 1 ; Wang, Liang-Gen 1 ; Wang, Xu-Nuo 1 ;

作者机构： 1.Chinese Acad Fishery Sci, South China Sea Fisheries Res Inst, Guangzhou 510300, Peoples R China

2.Chinese Acad Sci, Nanjing Inst Geol & Palaeontol, Nanjing 210008, Peoples R China

3.Southern Marine Sci & Engn Guangdong Lab Guangzhou, Guangzhou 511485, Peoples R China

4.Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China

5.Key Lab Open Sea Fishery Dev, Minist Agr & Rural Affairs, Guangzhou 510300, Peoples R China

6.Key Lab Exploitat & Utilizat Marine Fisheries Reso, Minist Agr & Rural Affairs, Guangzhou 510300, Peoples R China

7.Minist Agr & Rural Affairs, Key Lab Aquat Prod Proc, 213 Huadu Ave East, Guangzhou 510800, Peoples R China

关键词： Chinese Bahaba; Sound absorption structure; Chamber; Fish otolith; X-ray microcomputed tomography

期刊名称：MICRON （ 影响因子：2.381； 五年影响因子：2.118 ）

ISSN： 0968-4328

年卷期： 2022 年 161 卷

页码：

收录情况： SCI

摘要： As a critically endangered (CR) fish species, Chinese Bahaba is a unique "Giant Panda" fish species in China and has been listed among the national first-class wildlife protection animals and China's top 10 genetic resources of aquatic products since 2021. This fish species is of high commercial value because its swim bladder is commonly used in traditional Chinese medicine. Its otoliths are the sensory organs immersed in the endolymph for maintaining its balance and hearing. However, rare information has been reported on the sound absorption structure and chambers of otoliths of such "Giant Panda" fish. The big "C" groove was found in the fish's front sagittal otolith with the crystal cluster in the back sagittal otolith, the former of which is a 3D layered structure, that is constructed by elongated prismatic crystals. Besides, there are numerous small holes and adhesion material in this 3D layered structure, where many chambers were also found, indicating that some specific sounds may be captured by this structure and these chambers may then amplify such sounds at a certain wavelength. This finding could be of great importance for protecting and conserving this critically endangered species.

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