| 摘要: |
| 利用2006 年4 月和2008 年10 月分别采自南海北部湾和渤海长岛海域的119 尾细条天竺鱼(Apogonichthys lineatus)和57 尾黑鳃天竺鱼(Apogonichthys arafurae)标本, 以耳石长、耳石宽、周长、面积、矩形趋近率、充实度为基本形态学参数, 结合傅立叶变换获得的形态特征变量, 研究了两种天竺鱼耳石形态的差异。结果显示, 两种天竺鱼耳石在整体轮廓、听沟形状、边缘形态等方面较为接近, 细条天竺鱼耳石整体形态较为卵圆, 后部较宽; 黑鳃天竺鱼耳石整体略细长, 后部较窄。利用耳石形态学特征变量对两种天竺鱼的判别分析成功率分别高达82.5%和88.2%, 显示耳石形态学分析是天竺鱼鱼种识别的有力手段。
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| 关键词: 细条天竺鱼, 黑鳃天竺鱼, 耳石, 形态 |
| DOI：10.11693/hyhz201002018018 |
| 分类号: |
| 基金项目:国家重点基础研究发展计划(973 计划)资助, 2005CB422306 号; 山东省自然科学基金项目“黄渤海鱼类耳石形态学及其在渔业资源学中的应用”, Y2008D21 号; 国家自然科学基金委员会“创新研究群体科学基金”, 40821004 号 |
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| USING OTOLITH TO IDENTIFY TWO FISH SPECIES: APOGONICHTHY LINEATUS AND A. ARAFURAE |
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WANG Ying-Jun1, YE Zhen-Jiang1, LIU Qun1, DOU Shuo-Zeng2, WANG Wei-Ling1
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1.Fisheries College, Ocean University of China;2.Key Laboratory of Marine Ecology and Environmental Sciences,Institute of Oceanology, Chinese Academy of Sciences
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| Abstract: |
| Differences in otolith shape were studied for two fishes: Apogonichthys lineatus and A. arafurae. 119 A. lineatus and 57 A. arafurae specimens were collected from Beibu Gulf and Bohai Sea between 2006 and 2008. The otolith length, width, perimeter, area, rectangularity, and circularity were measured and analyzed using Fourier descriptors. The results indicate that the otolith of the two species are similar in overall outline, sulcus acusticus shape, and the edge pattern. The otolith A. lineatus is egg-shaped with a wider posterior part, and that of A. arafurae is slender with a narrow posterior part.
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| Key words: Apogonichthys lineatus, Apogonichthys arafurae, Otolith, Morphology |
