التفاصيل البيبلوغرافية
| العنوان: |
西沙群岛鹦嘴鱼科耳石形态学物种鉴定的可行性研究. (Chinese) |
| Alternate Title: |
FEASIBILITY STUDY ON SPECIES IDENTIFICATION OF SCARIDAE FISHES FROM XISHA ISLANDS, CHINA, BASED ON OTOLITH MORPHOLOGY. (English) |
| المؤلفون: |
康志鹏, 李纯厚, 李纯然, 王 腾, 赵金发, 石 娟, 刘 永 |
| المصدر: |
Journal of Hydrobiology; Mar2024, Vol. 48 Issue 3, p469-478, 10p |
| Abstract (English): |
In this study, parrotfish were obtained in the sea area of Xisha Islands from 2018 to 2021. Their identification was analyzed by 19 otolith morphological indicators selected by traditional morphometry, along with 77 elliptical Fourier coefficients (eFcs) selected by elliptical Fourier analysis. This comprehensive approach aimed to investigate the feasibility of otolith morphology in the identification of species in the Scaridea family. The results showed that the comprehensive discriminant rate was 56.8% when using only otolith morphological indicators to identify parrotfish. This rate was lower than the 63.1% achieved by utilizing only eFcs and the impressive 75.7% when combining both parameters. However, the combination of these two parameters significantly enhanced the discriminant rate to 88.6% for 4 genera, with Calotomus achieving a perfect 100% discrimination rate. The clustering results based on otolith morphology for the 15 Scaridea species largely align with the evolutionary tree results obtained from the study of mitochondrial genes. This agreement, especially at the genus level, showing a high degree of agreement, confirming that otolith morphology has genetic properties and illustrating the feasibility of otolith morphology for fish species identification. The results of this study contribute essential scientific information to the basic research of parrotfish in Xisha Islands and establish a theoretical foundation for the conservation and development of parrotfish resources. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
研究于 2018-2021 年在西沙群岛海域采集鹦嘴鱼样本, 通过传统形态测量法选取的19个耳石形态指标 和椭圆傅里叶分析法选取的77个椭圆傅里叶系数对其进行鉴别分析, 探究耳石形态在鹦嘴鱼科物种鉴别中的 可行性。结果表明, 仅使用耳石形态指标鉴别鹦嘴鱼时综合判别率为56.8%, 低于仅使用椭圆傅里叶系数的 63.1% 和两种参数结合的75.7%; 而结合两种参数对其4个属的综合判别率为88.6%, 其中绚鹦嘴鱼属的判别率 达到100%; 15种鹦嘴鱼的耳石形态聚类结果与已有研究的进化树结果基本-致, 特别是属层面的聚类, 呈现 高度-致, 证实了耳石形态具有遗传的属性, 也说明了耳石形态学用于鱼类物种鉴定的可行性。研究结果将 为西沙群岛鹦嘴鱼的基础研究提供科学资料, 为鹦嘴鱼资源的保护与开发提供理论依据. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
