The effect of light and the bait in the efficiency of the Largehead hairtail (Trichiurus lepturus, Linnaeus, 1758)  handline fishing

Erfanifar, Elahe; Gorgin, Saeid; Ghorbani, Rasul; Susanto, Adi; Irnawati, Ririn

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Erfanifar E, Gorgin S, Ghorbani R, Susanto A, Irnawati R. The effect of light and the bait in the efficiency of the Largehead hairtail (Trichiurus lepturus, Linnaeus, 1758) handline fishing. JFST 2024; 13 (3) :122-132
URL: http://jfst.modares.ac.ir/article-6-75025-en.html

The effect of light and the bait in the efficiency of the Largehead hairtail (Trichiurus lepturus, Linnaeus, 1758) handline fishing

Elahe Erfanifar¹

, Saeid Gorgin ^*

², Rasul Ghorbani¹

, Adi Susanto³

, Ririn Irnawati³

1- Gorgan University of Agricultural Sciences and Natural Resources
2- Gorgan University of Agricultural Sciences and Natural Resources , sgorgin@gau.ac.ir
3- University of Sultan Ageng Tirtayasa

Abstract: (589 Views)

To study the effect of baits type and three lights, green, blue, and white, on the fishing efficiency of Largehead hairtail (Trichiurus lepturus) handline fishing 11,951 samples were done from February to May 2022 in the northern coast of the Oman Sea, Remin Fishing Port. The results showed that only the season and bait had a significant effect on the weight and number of caught T. lepturus caught (P<0.05), while the type of lamp and its interactions did not have a significant effect (P>0.05). The highest CPUE was observed in the months of February and March, using Rastrelliger kanagurta as bait, green LED lamp, at a water depth of 60-110 meters, and a hook depth of 20-30 meters. The use of R.kanagurta bait compared to Sardinella gibbosa has led to a significant increase in the catch of T. lepturus (both in terms of relative frequency and weight), which is recommended to improve the efficiency of hook fishing for fishermen. Due to catch per unite effort and for efficiency of catch rate of T. lepturus in the area, it seems suitable bait, green light and suitable depth of the hook must be used.

Keywords: Largehead hairtail, LED lamp, light spectrum, bait type.

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Article Type: Original Research | Subject: Fisheries Extension & Stock assessment
Received: 2024/05/9 | Published: 2024/10/26

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