Population Parameters of River Mullet “Ludong” (Cestraeus sp.) in Ulot River, Paranas, Samar, Philippines
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Abstract
This study assessed the population parameters of the river mullet (Cestraeus sp.), locally known as “ludong,” in Ulot River, Paranas, Samar. Using length-frequency data analyzed through the FAO-ICLARM Stock Assessment Tools (FiSAT), the research estimated growth parameters, mortality rates, exploitation rate, recruitment patterns, and length–weight relationships. Results showed moderate growth (K = 0.23 yr⁻¹), high fishing mortality (F = 1.60 yr⁻¹), and an exploitation rate (E = 0.53) exceeding sustainable levels. Recruitment peaks were observed annually, but heavy capture of …
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Cite This Research
Bacnutan, Gamba, Diocton, Evardone, Tibar (2025). Population Parameters of River Mullet “Ludong” (Cestraeus sp.) in Ulot River, Paranas, Samar, Philippines. Samar State University. Retrieved from https://gov-aideas.ssu.edu.ph/research/population-parameters-of-river-mullet-ludong-cestraeus-sp-in-ulot-river-paranas-samar-philippines
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Research Information
- Research Type
- Applied Research
- Sector
- Environment & Disaster Resilience
- Published
- February 24, 2026
- Last Updated
- February 24, 2026
- Access Level
- Public
- File Size
- 42.8 MB