Sagitta otolith shape analysis as a tool for identification of the Caspian Kutum Rutilus kutum (Kamenskii, 1901) in the southern coasts of the Caspian Sea

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ABBASI F.; GHORBANI R.; SALMAN MAHINI A.; RAMEZANPOUR S.S.; Trueman C.N.; Jackson A.L.

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Paper Information

Journal: JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH Year:2020 | Volume:7 | Issue:4 Page(s): 13-32

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Title

Sagitta otolith shape analysis as a tool for identification of the Caspian Kutum Rutilus kutum (Kamenskii, 1901) in the southern coasts of the Caspian Sea

Author(s)

Keywords

R.kutum

Otolith morphometry

Distribution

Southern part of the Caspian Sea

Abstract

The present study aimed to describe the otolitxsh morphology of the Caspian kutum (R. kutum) in the southern coasts of the Caspian Sea. The current knowledge on the stock structure is scarce for the management and protection purposes of this valuable species. This study was carried out using sagitta otolith as an effective tool for identification of the Caspian kutum population structure. A total of 153 individuals fish were collected from ten beach seine of bony fish cooperatives in the southern coasts of the Caspian Sea (Astara, Bandar-e Anzali, Rudsar, Tonekabon, Nowshahr, Babolsar, Sari, Miankaleh (Golestan Province), Khajeh Nafas, and Gomishan) from 2016 to 2017. Otolith shape indices were analyzed using univariate and multivariate statistics. Otolith shape analyses showed some regional differences. The rate of reclassification of sampled fish were around 40-60% at the sampling stations which indicating no single population. However, using differential analysis and MANOVA/CVA showed that there were four distinct spatial groups including the first group from Gomishan, the second group from Khajeh Nafas, Miankaleh, Sari, Babolsar, the third group from Nowshahr, Tonekabon, Rudsar and the fourth group from Bandar-e Anzali and Astara. Consequently, data showed the complex spatial dynamics of the Caspian kutum.

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APA: Copy

ABBASI, F., GHORBANI, R., SALMAN MAHINI, A., RAMEZANPOUR, S.S., Trueman, C.N., & Jackson, A.L.. (2020). Sagitta otolith shape analysis as a tool for identification of the Caspian Kutum Rutilus kutum (Kamenskii, 1901) in the southern coasts of the Caspian Sea. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, 7(4 ), 13-32. SID. https://sid.ir/paper/784413/en

Vancouver: Copy

ABBASI F., GHORBANI R., SALMAN MAHINI A., RAMEZANPOUR S.S., Trueman C.N., Jackson A.L.. Sagitta otolith shape analysis as a tool for identification of the Caspian Kutum Rutilus kutum (Kamenskii, 1901) in the southern coasts of the Caspian Sea. JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH[Internet]. 2020;7(4 ):13-32. Available from: https://sid.ir/paper/784413/en

IEEE: Copy

F. ABBASI, R. GHORBANI, A. SALMAN MAHINI, S.S. RAMEZANPOUR, C.N. Trueman, and A.L. Jackson, “Sagitta otolith shape analysis as a tool for identification of the Caspian Kutum Rutilus kutum (Kamenskii, 1901) in the southern coasts of the Caspian Sea,” JOURNAL OF APPLIED ICHTHYOLOGICAL RESEARCH, vol. 7, no. 4 , pp. 13–32, 2020, [Online]. Available: https://sid.ir/paper/784413/en

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