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The exploitation status of Talang queenfish )Scomberoides commersonnianus Lacepède, 1801) in the northern waters of the Oman Sea (Sistan and Baluchestan province)
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Mehran Moradi   , Seyyed Aliakbar Hedayati * , Rasoul Ghorbani , Seyyed Ahmadreza Hashemi , Parviz Zare |
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Abstract: (298 Views) |
| The Persian Gulf and the Oman Sea contain a variety of aquatic species. Among which, scomberoides commersonnianus fishes are important that has increased its catch in recent years. In this research, the demographic characteristics of Talang queenfish fish were estimated by collecting data from April 2022 to March 2023 from 4 catchment areas including Pezam, Kanarak, Breis and Pasbandar on the coasts of Sistan and Baluchistan province. In this study, more than 1900 fish at the research stations were biometric and the growth parameters were infinite length of L∞ = 137 cm, growth factor K = 0.54 (yr-1), natural mortality M= 0.52(yr-1), mortality and mortality (yr-1), F = 2.21, total mortality (yr-1), Z = 2.73 and exploitation coefficient (yr-1), E = 0.8, and the time zero was -0.19. According to the calculations, the average initial biomass was obtained 98 (56-173) thousand tons, the average current biomass 44(20-58) thousand, the average maximum sustainable yield (MSY) around 14 (8-22) thousand tons. The ratio of current fishing mortality to maximum sustainable yield (F/FMSY) was showed greater than one (1.33) and the ratio of current biomass to maximum sustainable yield (B/BMSY) is less than one (0.9). This study shows that the annual harvest of Talang queenfish stock has reached its maximum and any increase in fishing effort will affect this fish stock and will reduce the amount of exploitation in the long run. |
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| Keywords: scomberoides commersonnianus, Exploitation coefficient, Growth coefficient. |
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Full-Text [PDF 790 kb]
(54 Downloads)
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Type of Study: Research |
Subject:
Special
Received: 2023/07/8 | Accepted: 2024/06/15 | Published: 2024/09/25
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