Vol.15, No.3, July 2016
Investigation of otolith’s characteristics in Rachycentron canadum in the Persian Gulf and Oman Sea
Description:1-Department of Fisheries, Science and Research Branch, Islamic Azad University, Khouzestan, Iran. 2-Coldwater Fishes Research Center, Regional Lead Center of NACA, Tonekabon, Agricultural Research Education and Extension Organization (AREEO), Urmia, Iran. * Corresponding author's Email: azhir3@yahoo.com
This study aimed to investigate otolith inRachycentron canadumin the Persian Gulf and Oman Sea. Sampling lasted from March 2014 to April 2015 in Khouzestan to Sistan and Baloochestan waters. During this period 30 specimens ofR. canadum were caught and studied. Trawling time was 2-2½ hours and trawling depth was considered as 10-100 m daily. All the fish were identified and their otolith was extracted for verification. Investigation of otolith morphometric characteristics (length, breadth, weight, perimeter and area) were conducted. Otolith inR. canadum was small, with average stretch and low thickness. We conclude that the otolith appearance and morphometry can be used as a key to identify the species.
Keywords: Otolith,Rachycentron canadum, Persian Gulf, Oman Sea
Author:Javadzadeh N.1; Mabudi H. 1; Taghi Azhir M.2*
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