Document Type : (original research)
Authors
1
Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Tehran, Iran
2
Offshore Fisheries Research Center, Iranian Fisheries Science Research Institute, Agricultural Research, Education and Extension Organization, Chabahar, Iran Department of Biology, Faculty of Science, University of Tehran, Tehran, Iran
10.22034/AEJ.2021.297861.2597
Abstract
In the present study, population characteristics of Sphyraena jello were evaluated by sampling fish at five fish landing sites in the northern Oman sea (Iran) including Beris, Ramin, Pozm, Konarak and Jask from April 2020 to February 2021. The biometric analysis was performed on more than 301 fish. Growth and mortality indices were calculated including infinite length (L∞ = 155 cm), growth coefficient (K = 0.55 (yr-1)), growth performance index (Ф=4.14), natural mortality (M= 0.74 (yr-1)), fishing mortality (F = 1.46 (yr-1)), total mortality (Z = 2.20±0.29 (yr-1)) and exploitation coefficient (E = 0.67 (yr-1)). Relative production per recruitment, relative biomass per recruitment and exploitation rate of S. jello were Y'/Rp = 0.05, B'/Rp = 0.18. The present study showed that the stock conditions of this species is under of moderate.
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