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Comparison of otolith shape descriptors and morphometrics for stock discrimination of yellow croaker along the Chinese coast
Song Junjie2; Zhao Bo2; Liu Jinhu; Cao Liang; Dou Shuozeng1,2
2018-09-01
Source PublicationJOURNAL OF OCEANOLOGY AND LIMNOLOGY
ISSN2096-5508
Volume36Issue:5Pages:1870-1879
SubtypeArticle
AbstractThis study compared and evaluated the efficiency of two otolith shape descriptors (i.e., the elliptic Fourier transform (EFT) and discrete wavelet transform (DWT)) and morphometrics for stock discrimination. To accomplish this, sample fish from three stocks of yellow croaker Larintichthys polyactis along the Chinese coast (LDB stock from the Liaodong Bay of the Bohai Sea, JZB stock from the Jiaozhou Bay of the Yellow Sea and CJE stock from the Changjiang River estuary of the East China Sea) were used for otolith morphology analyses. The results showed that morphometrics produced an overall classification success rate of 70.8% in contrast with success rates of 80.0% or 82.0% obtained using EFT or DWT, respectively. This suggests that the two shape descriptors comparably discriminated among the stocks and performed more efficiently than morphometrics. During data adjustment and acquisition, some size variables were excluded from the subsequent discriminant analysis for stock discrimination because they were statistically "ineffective," which could reduce the efficiency of morphometrics and lead to relatively low overall classification success. Both EFT and DWT retain the contour coefficients and thus provide a detailed description of otolith shape, which could improve discriminatory efficiency compared with morphometrics.
Keywordotolith stock discrimination discrete wavelet transfonn elliptic Fourier transform morphometrics Laritnichthys polyactis
Subject AreaMarine & Freshwater Biology ; Oceanography
DOI10.1007/s00343-018-7228-0
Indexed BySCIE
Language英语
WOS Research AreaLimnology ; Oceanography
WOS IDWOS:000450165300038
PublisherSCIENCE PRESS
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Document Type期刊论文
Identifierhttp://ir.qdio.ac.cn/handle/337002/157536
Collection海洋生态与环境科学重点实验室
Affiliation1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
2.Qingdao Natl Lab Marine Sci & Technol, Lab Marine Ecol & Environm Sci, Qingdao 266071, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Song Junjie,Zhao Bo,Liu Jinhu,et al. Comparison of otolith shape descriptors and morphometrics for stock discrimination of yellow croaker along the Chinese coast[J]. JOURNAL OF OCEANOLOGY AND LIMNOLOGY,2018,36(5):1870-1879.
APA Song Junjie,Zhao Bo,Liu Jinhu,Cao Liang,&Dou Shuozeng.(2018).Comparison of otolith shape descriptors and morphometrics for stock discrimination of yellow croaker along the Chinese coast.JOURNAL OF OCEANOLOGY AND LIMNOLOGY,36(5),1870-1879.
MLA Song Junjie,et al."Comparison of otolith shape descriptors and morphometrics for stock discrimination of yellow croaker along the Chinese coast".JOURNAL OF OCEANOLOGY AND LIMNOLOGY 36.5(2018):1870-1879.
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