Stock identification of Arabian yellow fin sea bream (Acanthopagrus arabicus) using shape of otolith in the Northern Persian Gulf and Oman Sea

Doustdar, M.; Kaymaram, F.; Seifali, M.; Jamili, S.; Bani, A.

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Journal DOI

AWT IMAGE
Journal DOI
10.18869/acadpub.ijfs

Volume 18, Issue 1 (2019)

IJFS 2019, 18

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Stock identification of Arabian yellow fin sea bream (Acanthopagrus arabicus) using shape of otolith in the Northern Persian Gulf and Oman Sea

M. Doustdar¹

, F. Kaymaram ^*²

, M. Seifali³

, S. Jamili⁴

, A. Bani⁵

1- Department of Marine Biology, Science and Research Branch, Islamic Azad University, Tehran, Iran.
2- Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization, Tehran, Iran. , farhadkaymaram@gmail.com
3- Plant Sciences Department, Faculty Biological Sciences, Alzahra University, Vanak, Tehran, Iran.
4- Iranian Fisheries Sciences Research Institute, Agricultural Research, Education and Extension Organization, Tehran, Iran.
5- Department of Biology, Faculty of Science, University of Guilan, Rasht, Iran

Abstract: (4474 Views)

Otolith shape analysis is one way to identify stocks of different fish species in the marine environment. Length, width, area, perimeter, form factor, aspect ratio, roundness, circularity, ellipticity and rectangularity analyses of otoliths were undertaken to assess patterns of spatial and temporal stock structure of a wide-ranging fish, the Arabian yellow fin sea bream Acanthopagrus arabicus. Fish were sampled from 125 stations across the distribution range of the species in the Northern Persian Gulf and Oman Sea from June 2014 to May 2016. Analysis of morphometric parameters of otolith showed the minimum size in Khuzestan waters and the West Strait of Hormuz and the maximum size in the East Strait of Hormuz. In Bushehr waters, form factor showed the lowest and circular factor showed the highest frequency. These findings are in agreement with the irregularity in otolith margin of this area. The highest aspect ratio of otolith indicated higher growth in Khuzestan Waters. The thinner and longer otoliths were identified in the East Strait of Hormuz region. Further, rectangularity ratio factor in the Bushehr and West Strait of Hormuz waters was higher in comparison with other regions and this finding confirmed the quadrilateral otolith shape of this region. There are significant differences among otolith morphometric variables of the A. arabicus (p<0.05). The result of discriminant analysis on morphometric parameters indicated that 53/8 percent were in their geographic location accurately.

Keywords: Shape otolith indices, Stock identification, Acanthopagrus arabicus, Northern Persian Gulf and Oman Sea

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Type of Study: Orginal research papers |
ePublished: 2018/12/25

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Doustdar M, Kaymaram F, Seifali M, Jamili S, Bani A. Stock identification of Arabian yellow fin sea bream (Acanthopagrus arabicus) using shape of otolith in the Northern Persian Gulf and Oman Sea. IJFS 2019; 18 (1) :60-70
URL: http://jifro.ir/article-1-3719-en.html

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Volume 18, Issue 1 (2019)

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