2026 IJRSE – Volume 15 Issue 11
Available Online: 11 May 2026
Author/s:
Oledilis, Abelardo B. Jr.*
Central Bicol State University of Agriculture, Philippines (oledilisabelardo@gmail.com)
Vergara, Jonalyn N.
Central Bicol State University of Agriculture, Philippines (jonalynvergara1617@gmail.com)
Bonde, Christian Dhan V.
Central Bicol State University of Agriculture, Philippines (bondechristian50@gmail.com)
Felezmiño, Jasper Ian U.
Central Bicol State University of Agriculture, Philippines (jasperian.felezmino@cbsua.edu.ph)
Nolaco, Michael N.
Central Bicol State University of Agriculture, Philippines (michhael.nolasco@cbsua.edu.ph)
Abstract:
The study of blue carbon assessment of mangrove forest at Camangi, Pasacao, Camarines Sur. Specifically, it aimed to: (a) Identify the different species of Mangrove in Sitio, Camangi, Sta. Rosa Del Sur Pasacao, Camarines Sur. (b) Determine the ecological status of the Mangrove forest through vegetation analysis and biometric characterization. (c)To calculate the Carbon stock of Mangrove in Camangi, Pasacao, Cmarines Sur. Using a descriptive method and random nested plot sampling, the researcher collected mangroves species from the seven quadrants. A total of 79 mangroves individuals across three species: Avicennia Marina (Apiapi), Aegiceras floridum (Saging–saging), and Sonneratia Alba (Pagatpat). Physico-chemical analysis revealed that most parameters, such us color (clear) and odor (smell of gas) while salinity (0.01%), dissolved oxygen (5.44), total dissolved solids (28.56), Ph (7.57), and temperature (29.43). Vegetation analysis revealed that Sonneratia Alba (Pagatpat) most dominates the ecosystem with a relative density of 67.04%, followed by Avicennia Marina at 31.93%, and Aegiceras Floridum at just 1.02%. The carbon stock assessment used diameter at breast height (DBH) and total height measurements to determine results which showed that Avicennia Marina had a DBH range of 6.4 – 10.41cm and heights from 20.64 – 24.46m, Aegiceras Floridum had a BBH range of 10.19 cm and height of 3.25 m and while the Sonneratia alba exhibited a DBH range from 68.46 – 156.81 cm and height 22.61m. The total carbon storage capacity of mangroves through blue carbon accumulation can store up to 4303.86 kg of carbon. This study concludes that the blue carbon sequestration of mangrove forest can be affect by the age of the mangrove, species, and management practices of mangroves. Future studies are recommended to include policy and management integration.
Keywords: blue carbon assessment, mangrove forest, Pasacao, Camarines Sur
DOI: https://doi.org/10.5861/ijrse.2026.26186
Cite this article:
Oledilis, A. B. J., Vergara, J. N., Bonde, C. D. V., Felezmiño, J. I. U., & Nolaco, M. N. (2026). Blue carbon assessment of mangrove forest at Camangi, Pasacao, Camarines Sur. International Journal of Research Studies in Education, 15(11), 243-256. https://doi.org/10.5861/ijrse.2026.26186
* Corresponding Author