Research Article

Mangrove Forest Structure and Allometric-based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines

Number: 1 August 20, 2026

Mangrove Forest Structure and Allometric-based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines

Abstract

The study provides the first baseline assessment of the mangrove ecosystem in Barangay Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines, by evaluating vegetation structure, species diversity, regeneration status, aboveground biomass, and carbon stock. A total of 16 true mangrove species belonging to eight families were recorded, indicating moderate site-level species richness. Community structure analysis revealed strong dominance of Avicennia marina across all stations and zonation belts, with high importance values and dense mature stands. Despite excellent tree height conditions, crown cover and regeneration were consistently poor, suggesting limited recruitment and reduced structural complexity. Carbon stocks estimation varied substantially among stations with Station 3 (7 601 167.14 kg), followed by Station 2 (752 392.43 kg) and Station 1 (276 661.19 kg). Similarly, the middle zone stored the greatest amount of carbon (3 675 035.30 kg), followed by the seaward (1 085 827.69 kg) and landward (10 017.67 kg). The increasing dominance of stress-tolerant pioneer species suggests a simplification of the mangrove community, potentially reducing long-term ecological resilience under disturbances and climate stressors. These findings provide critical baseline data to support local government coastal and fisheries management intervention, including assisted natural regeneration, enrichment planting, hydrological restoration of abandoned fishponds, and mitigation of anthropogenic pressures to enhance biodiversity conservation, carbon sequestration, and fisheries sustainability.

Keywords

Project Number

2

Ethical Statement

Ethical approval was not required for this study as it did not involve human participants, interviews, surveys, personal data, or experiments on animals. The research was limited to field measurements of mangrove vegetation and analysis of forest structure and biomass using established, non-invasive allometric methods.

Thanks

We extend our appreciation to all individuals who provided valuable insights and constructive feedback on the study. We also acknowledge the institutional support of Mindanao State University at Naawan, Central Philippines State University – Ilog Campus, Carlos Hilado Memorial State University – Binalbagan Campus, and Iloilo State University of Fisheries Science and Technology - Tiwi Campus.

References

  1. Ahmed, S., Sarker, S., Friess, D. A., Jacobs, M., Islam, M., Alam, M., Suvo, M., Hossain, M., Dey, T., Sullibie, C., Naabeh, S., & Pretzsch, H. (2022). Salinity reduces site quality and mangrove forest functions: From monitoring to understanding. Science of the Total Environment, 832, 158662. https://doi.org/10.1016/j.scitotenv.2022.158662
  2. Akram, H., Hussain, S., Mazumdar, P., Chua, K., Butt, T., & Harikrishna, J. (2023). Mangrove health: A review of functions, threats, and challenges associated with mangrove management practices. Forests, 14, 1698. https://doi.org/10.3390/f14091698
  3. Albarico, F. (2022). Notes on mangrove civil reservation area, Sagay Marine Reserve, the Philippines: A baseline mangrove diversity checklist. Aquatic Research, 5, 22032. https://doi.org/10.3153/ar22032
  4. Alongi, D. (2020). Global significance of mangrove blue carbon in climate change mitigation. Sci, 2, 57. https://doi.org/10.3390/sci2030057
  5. Aye, W., Wen, Y., Marin, K., Thapa, S., & Tun, A. (2019). Contribution of mangrove forest to the livelihood of local communities in Ayeyarwaddy Region, Myanmar. Forests, 10, 414. https://doi.org/10.3390/f10050414
  6. Bhowmik, A., Padmanaban, R., Cabral, P., & Romeiras, M. (2022). Global mangrove deforestation and its interacting social-ecological drivers: A systematic review and synthesis. Sustainability, 14, 4433. https://doi.org/10.3390/su14084433
  7. Bunting, P., Rosenqvist, A., Hilarides, L., Lucas, R., Thomas, N., Tadono, T., Worthington, T., Spalding, M., Murray, N., & Rebelo, L. (2022). Global mangrove extent change 1996–2020: Global Mangrove Watch version 3.0. Remote Sensing, 14, 3657. https://doi.org/10.3390/rs14153657
  8. Cahyaningsih, A., Deanova, A., Pristiawati, C., Ulumuddin, Y., Kusumawati, L., & Setyawan, A. (2022). Causes and impacts of anthropogenic activities on mangrove deforestation and degradation in Indonesia. International Journal of Bonorowo Wetlands, 12, 102. https://doi.org/10.13057/bonorowo/w120102

Details

Primary Language

English

Subjects

Ecology (Other), Fisheries Management

Journal Section

Research Article

Publication Date

August 20, 2026

Submission Date

December 5, 2025

Acceptance Date

July 25, 2026

Published in Issue

Year 2026 Number: 1

APA
Singson, A. G., Coronel, L., Gimotea, M. E., & Clarito, Q. (2026). Mangrove Forest Structure and Allometric-based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines. Yuzuncu Yıl University Journal of Agricultural Sciences, 1, 1836450. https://doi.org/10.29133/yyutbd.1836450
AMA
1.Singson AG, Coronel L, Gimotea ME, Clarito Q. Mangrove Forest Structure and Allometric-based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines. YYU J AGR SCI. 2026;(1):1836450. doi:10.29133/yyutbd.1836450
Chicago
Singson, Angela Grace, Lilibeth Coronel, Mac Edmund Gimotea, and Quin Clarito. 2026. “Mangrove Forest Structure and Allometric-Based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines”. Yuzuncu Yıl University Journal of Agricultural Sciences, no. 1: 1836450. https://doi.org/10.29133/yyutbd.1836450.
EndNote
Singson AG, Coronel L, Gimotea ME, Clarito Q (August 1, 2026) Mangrove Forest Structure and Allometric-based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines. Yuzuncu Yıl University Journal of Agricultural Sciences 1 1836450.
IEEE
[1]A. G. Singson, L. Coronel, M. E. Gimotea, and Q. Clarito, “Mangrove Forest Structure and Allometric-based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines”, YYU J AGR SCI, no. 1, p. 1836450, Aug. 2026, doi: 10.29133/yyutbd.1836450.
ISNAD
Singson, Angela Grace - Coronel, Lilibeth - Gimotea, Mac Edmund - Clarito, Quin. “Mangrove Forest Structure and Allometric-Based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines”. Yuzuncu Yıl University Journal of Agricultural Sciences. 1 (August 1, 2026): 1836450. https://doi.org/10.29133/yyutbd.1836450.
JAMA
1.Singson AG, Coronel L, Gimotea ME, Clarito Q. Mangrove Forest Structure and Allometric-based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines. YYU J AGR SCI. 2026;:1836450.
MLA
Singson, Angela Grace, et al. “Mangrove Forest Structure and Allometric-Based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines”. Yuzuncu Yıl University Journal of Agricultural Sciences, no. 1, Aug. 2026, p. 1836450, doi:10.29133/yyutbd.1836450.
Vancouver
1.Angela Grace Singson, Lilibeth Coronel, Mac Edmund Gimotea, Quin Clarito. Mangrove Forest Structure and Allometric-based Carbon Stock Estimation of Tomongtong, Enrique B. Magalona, Negros Occidental, Philippines. YYU J AGR SCI. 2026 Aug. 1;(1):1836450. doi:10.29133/yyutbd.1836450
Creative Commons License
Yuzuncu Yil University Journal of Agricultural Sciences by Van Yuzuncu Yil University Faculty of Agriculture is licensed under a Creative Commons Attribution 4.0 International License.