The use of otolith shape to identify stocks of Konosirus punctatus Li, Songzhang Wang, Xianwen Wang, Haixia Wu, Chunzhi Zhan, Huixiang Su, Shengqi Gao, Tianxiang He, Tao 2021-03-22T20:20:37Z 2021-03-22T20:20:37Z 2020
dc.description.abstract Konosirus punctatus is an important economic fish in the Northwest Pacific Ocean, especially along the coast of China, and an important substitute in the marine ecosystem. The aim of this study is to quantify the variation of sagittal shapes to discriminate the K. punctatus stocks between China coasts (Wei Hai, Yan Tai, Zhou Shan, Wen Zhou, Dong Ying, Hai Kou and Qing Dao) and Aomori (Am) in Japan by comparing the sagittal morphometric features. The sagitta variation of eight K. punctatus stocks was examined using nine shape indices (Roundness, Circularity, Form-factor, Rectangularity, Ellipticity, Radius ratio, Feret ratio, Aspect ratio and Surface density). Multiple comparisons on shape indices showed that three shape indices (Roundness, Feret ratio and Surface density) have significant differences between nine stocks. The comprehensive judgment accuracy rate is 54.5%. Based on the Fourier coefficient eight Fourier parameters can fit the shape of sagittal. The comprehensive judgment accuracy rate is 56.1%. The results showed that the otolith morphology was not significantly different between seven China stocks, while the China stocks showed a large sagittal morphological difference from the Japanese stock. It could be related to environmental factors and geographical conditions in various sea areas.
dc.format.extent 12 pages
dc.identifier.issn 0792-156X
dc.relation.ispartof The Israeli Journal of Aquaculture - Bamidgeh
dc.subject discrimination function
dc.subject stocks identification
dc.subject fourier analysis
dc.subject shape indices
dc.subject otolith morphology
dc.title The use of otolith shape to identify stocks of Konosirus punctatus
dc.type Article
dc.type.dcmi Text
prism.volume 72
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