Volume 17, Issue 2 (Summer 2025)
3 2025, 17(2): 35-51 |
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mirzaei M, Paighambari Y, Zare P, Abbaspour Naderi R. Comparison of Catch Rates of Five Commercially Important Fish Species Caught by Gillnets in the Fishing Grounds of the Persian Gulf and Oman Sea Coasts Over a Five-Year Period. 3 2025; 17 (2) :35-51
URL: http://jmb.ahvaz.iau.ir/article-1-1030-en.html
URL: http://jmb.ahvaz.iau.ir/article-1-1030-en.html
Gorgan University of Agricultural Sciences and Natural Resources
Abstract: (57 Views)
In this study, the catch trends of five commercially important fish species, Silver Croaker (Otolithes ruber), Javelin Grunter (Pomadasys kaakan), Black Pomfret (Parastromateus niger), Orange-spotted Grouper (Epinephelus coioides), and Yellowfin Seabream (Acanthopagrus latus) were investigated along the coasts of four southern provinces of Iran.The necessary data were collected from field studies conducted by the Iranian Fisheries Organization during the years 2016-2021. Analysis of variance and Duncan's range comparison were used to analyze the data. Based on the results, fluctuations in the mean annual catch were observed for all species. The highest mean annual catch values were recorded in 2019 (1398 Solar Hijri calendar) for the croaker, black pomfret and yellowfin seabream. For the Javelin grunter and the Orange-spotted Grouper, the highest values were registered in 2016 (1395) and 2020 (1399), respectively. Furthermore, the lowest mean annual catch values were recorded in 2016 (1395) for all species except the Javelin grunter. Fluctuations in mean catch values were also evident when examining the fishing trend based on the months of the year. Specifically, the highest mean monthly catch values for the Javelin grunter, black pomfret, and yellowfin seabream were recorded in Farvardin (March/April). For the croaker and the grouper, the highest values were registered in Bahman (January/February) and Aban (October/November), respectively. Conversely, the lowest monthly catch values for the Javelin Grunter, black pomfret, and yellowfin seabream were recorded in Azar (November/December), while for the croaker and the grouper, they were registered in Tir (June/July) and Mordad (July/August), respectively. In the studied provinces, the highest mean catch for all the studied species was recorded in Sistan and Baluchestan province. The lowest mean catch values were registered in Hormozgan province for the croaker species, in Khuzestan province for the Javelin grunter and black pomfret species, and in Bushehr province for the grouper and yellowfin seabream species. These fluctuations in catch rates could be influenced by factors such as the use of non-standard fishing gear, illegal fishing, overfishing, increased fishing effort, type of fishing gear, habitat and food preferences of aquatic species, environmental conditions, structural changes in fishery resources, and other contributing factors. Nevertheless, conducting studies on regulated and principled fishing operations to assess the parameters affecting the efficiency of commonly used fishing gear, such as gillnets the most important fishing tool for demersal species in the southern waters of Iran can play a vital role in strengthening marine protected areas, developing sustainable fishing strategies to prevent the depletion of aquatic stocks, particularly high-value economic species, and ensuring the long-term sustainability of resources.
Type of Study: Research |
Subject:
Fisheries
Received: 2025/07/23 | Accepted: 2025/06/28 | Published: 2025/06/28
Received: 2025/07/23 | Accepted: 2025/06/28 | Published: 2025/06/28
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