基于傅立叶耳石形态分析法对几种家鱼仔稚鱼的种类判别分析
Species identification at the larval and juvenile stages for several Chinese domestic fishes by elliptical Fourier analysis of otolith form
查看参考文献24篇
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文摘
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于室内养殖条件下研究了鲢(Hypophthalmichthys molitrix)、鳙(Aristichthys nobilis)和草鱼(Ctenopharyngodonidellus)胚后发育阶段矢耳石的形态发育,采用椭圆傅立叶分析法,基于矢耳石形态,比较了以孵化后日龄、耳石形态、发育期以及不同体长组为基础的判别方式上,对这3种家鱼苗的种类判别成功率。结果表明,总判别成功率均表现出了逐渐增加的趋势。孵化后4 d时,总判别率为79.79%;10 d时,总判别率始达90%以上,18 d时,总判别成功率稳定在100%。在尾椎上翘期以前的各发育期,总判别率均低于90%,而鳔二室期之后,总判别成功率达95%以上。据矢耳石形态,圆形和近圆形阶段总判别成功率较低,分别为61%和81%,在长椭圆形阶段后,总判别成功率达90%以上。而以体长为基础的判别成功率,初始总判别成功率便在90%以上。因此,若以判别率的高低为标准,则以不同体长组来鉴别鱼苗种类为最佳,而据耳石形态和发育期来鉴别鱼苗种类,则具有普遍的适用性。 |
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其他语种文摘
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The sagitta morphological development of laboratory cultured Hypophthalmichthys molitrix, Aristichthys nobilis, and Ctenopharyngodon idellus during the postembryonic development stage was studied. Stepwise discriminant analysis was used to distinguish these three species based on the day ages after hatching, sagitta shapes, postembryonic development stages and different body length groups by elliptical Fourier analysis of otolith morphology. The results showed that the total classification success (%) all increased gradually. The classification success was 79.79% on the fourth day after hatching, above 90% on the tenth day after hatching, and up to 100% after 18 days. The classification success was below 90% before the chordal tip lifting stage and above 95% after the two chamber air bladder stage. According to the sagitta morphology, the classification success at round and near round stages was 61% and 81%, respectively, but was over 90% after the oval stage. The classification success based on different body length groups was initially over 90%. So, if only compared by classification success, the approach based on different body length groups performed the best. The approach based on sagitta morphology and postembryonic development stages was more general in use. |
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来源
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中国水产科学
,2012,19(6):970-977 【核心库】
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DOI
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10.3724/sp.j.1118.2012.00970
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关键词
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傅立叶
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耳石
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仔稚鱼
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种类判别
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地址
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1.
集美大学水产学院, 福建, 厦门, 361021
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中国科学院水生生物研究所, 湖北, 武汉, 430072
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语种
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中文 |
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ISSN
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1005-8737 |
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学科
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水产、渔业 |
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基金
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国家自然科学基金资助项目
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集美大学基金
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文献收藏号
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CSCD:4674218
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