Assessment of catch per unit effort (CPUE) trends of sardine fishes using purse seine fishing vessels in the fishing grounds of Hormozgan Province

Document Type : short communication

Authors

1 Department of Fisheries, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran.

2 Deputy of Fishing and Fishing Ports, Iranian Fisheries Organization, Tehran, Iran.

10.22059/jfisheries.2026.393787.1456

Abstract

The present study investigates the annual and seasonal variations in catch per unit effort (CPUE) of sardine species caught by two‑boat purse seine fishing gear in the fishing grounds of Hormozgan Province, including the three regions of Qeshm Island, Lengeh port, and Jask port, using fisheries catch data provided by the Iran Fisheries Organization over the period 2018-2022. The results of two‑way analysis of variance (ANOVA) indicated that both fishing area and sampling year had a statistically significant effect on CPUE (P<0.05), whereas the interaction between these two factors was not significant (P>0.05). The findings also showed an overall increasing trend in sardine catches across the three studied regions during the study period. The mean CPUE (±95% confidence interval) of sardine species in the waters of Qeshm Island, Lengeh port, and Jask port was estimated at 1016±158.6, 1146±296.3, and 631±159.9 kg per haul, respectively. CPUE values in Lengeh port were significantly higher than those recorded in Jask port, while no significant difference was observed between Lengeh port and Qeshm Island. Although the highest total catch was recorded in the waters of Qeshm Island, its CPUE was lower than that of Lengeh port. The lowest CPUE of sardine species was observed in 2021, with a value of 403±109.9 kg per haul, which did not differ significantly from the CPUE recorded in 2022 (772±136.1 kg per haul), but was significantly lower than the values observed in 2018 (1202±233.4 kg per haul), 2019 (1235±166.1 kg per haul), and 2020 (1089±232.3 kg per haul) (P<0.05). Overall, the difference between observed CPUE and standardized CPUE ranged from 1 kg per haul (Qeshm Island, 2020) to 291 kg per haul (Lengeh port, 2020), with 53% of cases showing relatively substantial differences ranging between 175 and 291 kg per haul. These results indicate that CPUE values are strongly influenced by fishing area and year of exploitation. The findings of the present study can provide valuable information for the monitoring, control, and management of small pelagic fish stocks, particularly sardine species, in the southern waters of Iran.

Main Subjects

References

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Journal of Fisheries
Volume 79, Issue 1
February 2026
Pages 27-38

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