Size Distribution, Length-Weight Relationship, and Catch per Unit Effort of Frigate Tuna, Auxis thazard (Lacepède, 1800) in Tawi-Tawi Waters, Southern Philippines, Caught Using Multiple Handline

Year 2021, Volume: 10 Issue: 4, 370 - 375, 29.12.2021

Jaro Ajık Albaris Tahiluddin

https://doi.org/10.33714/masteb.974182

Abstract

Frigate tuna Auxis thazard (Lacepède, 1800) is the most dominant species caught by the multiple handline in the coastal and offshore fishing grounds of Tawi-Tawi, southern Philippines. In this study, we investigated the size distribution, length-weight relationship, and catch per unit effort of frigate tuna (A. thazard) in Tawi-Tawi waters, southern Philippines, caught using multiple handline. A total of 383 frigate tuna fish were sampled with a size distribution (total length) ranging from 16.5 to 34 cm. The length-weight relationship of frigate tuna was W=8×10^-3×TL^3.139, where the b value of 3.139 indicates a positive allometric growth pattern. The catch per unit effort of the used gear was 2.49±0.52 kg/hr.

Keywords

Auxis thazard, frigate tuna, catch per unit effort, length-weight relationship, Philippines

Supporting Institution

Mindanao State University-Tawi-Tawi College of Technology and Oceanography (MSU-TCTO)

Thanks

The authors are thankful to Mindanao State University-Tawi-Tawi College of Technology and Oceanography (MSU-TCTO) for the financial support. Likewise, our sincerest gratitude to Mohammad-Norodom H. Ajik and Alwasil N. Hapid for their valuable help during the conduct of the study.

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