Gil S. Jacinto, Ph.D.

Ph.D. Marine Chemistry
University of Liverpool, U.K. 

Research Interests: 
Seawater and sediment geochemistry; eutrophication and hypoxia

Selected Publications:
  • Sotto, L.P.A., Beusen, A.H.W., Villanoy, C.L., Bouwman, L.F., and Jacinto, G.S. (2015) Nutrients load estimates for Manila Bay, Philippines using population data. Ocean Science Journal. 50(2):467-474
  • Cabrera, O.C., Villanoy, C.L., Jacinto, G.S., Bernardo, L.P.C., Ferrera, C.M., Velasquez, I.B., Azanza, R.V. (2014). Salt-plug estuarine circulation in Malampaya Sound, Palawan, Philippines. Philippine Science Letters, 2: 428-437.
  • Sotto, L.P.A., Jacinto, G.S., Villanoy, C.L. (2014). Spatiotemporal variability of hypoxia and eutrophication in Manila Bay, Philippines during the northeast and southwest monsoons. Mar. Pollut. Bull. 85: 446-454.
  • Loke Ming, C., and Jacinto, G.S. (2013). The role of scientists in coastal management. In: Perspectives on Building a Regional Mechanism for Coastal and Ocean Governance in the Seas of East Asia. Partnerships in Environmental Management for the Seas of East Asia (PEMSEA), Quezon City, Philippines. pp. 110-117.
  • Senal, M.I.S., Jacinto, G.S., San Diego-McGlone, M.L., Siringan, F.P., Zamora, P., Soria, L., Cardenas, M.B., Villanoy, C., Cabrera, O. (2011). Nutrient Inputs from Submarine Groundwater Discharge on the Santiago Reef Flat, Bolinao, Northwestern Philippines. Mar. Pollut. Bull. 63(5-12):195-200.
  • Jacinto, G.S., Sotto, L.P., Senal, M.I., San Diego-McGlone, M.L., Escobar, M., Amano, A., Miller, T.W. (2011). Hypoxia in Manila Bay, Philippines during the northeast monsoon. Mar. Pollut. Bull. 63(5-12):243- 248.
  • Cardenas, M.B., Zamora, P.B,, Siringan, F.P., Lapus, M.R., Rodolfo, R.S., Jacinto, G.S., San DiegoMcglone, M.L., Villanoy, C.L., Cabrera, O., and Senal, M.I. (2010). Linking regional sources and pathways for submarine groundwater discharge at a reef by electrical resistivity tomography, 222Rn, and salinity measurements. Geophysical Research Letters. 37.
  • San Diego-McGlone, M.L., Azanza, R.V., Villanoy, C.L., and Jacinto, G.S. (2008). Eutrophic waters, algal bloom and fish kill in fish farming areas in Bolinao, Pangasinan, Philippines. Mar. Pollut. Bull. 57:295-301.
  • Reichardt, W., San Diego-McGlone, M.L., and Jacinto, G.S. (2007) Organic Pollution and Its Impact on the Microbiology of Coastal Marine Environments: A Philippine Perspective. Asian Journal of Water, Environment and Pollution 4(1), 1-9.
  • Jacinto,G.S., Velasquez, I.B., San Diego-McGlone, M.L., Villanoy, C.L. and Siringan, F.P. (2006). Biophysical environment of Manila Bay – then and now, Chapter 18. In The Environment in Asia Pacific Harbours. Wolanski, Eric (Ed.). Springer (ISBN: 1-4020-3654-X).
  • Jacinto, G.S., Azanza, R.V., Velasquez, I.B., and Siringan, F.P. (2006). Manila Bay: environmental challenges and opportunities, Chapter 19. In The Environment in Asia Pacific Harbours. Wolanski, Eric (Ed.). Springer (ISBN: 1-4020-3654-X).
  • Jacinto, G.S. (2002) Regionally Based Assessment of Persistent Toxic Substances. In: South East Asia and South Pacific Regional Report. December 2002. UNEP Chemicals, GEF. 125 pages
  • Velasquez, I.B., Jacinto, G.S., & Valera, F.S. (2002). The speciation of dissoved copper, cadmium and zinc in Manila Bay, Philippines. Mar. Pollut. Bull., 45(1-12), 210-217.
  • Jacinto, G.S. and M.L. San Diego-McGlone, (2000). Philippine Estuarine System: Manila Bay, Luzon Island. Estuarine Systems of the South China Sea Region: Carbon, Nitrogen, and Phosphorus Fluxes; LOICZ Report & Studies. No. 14.
  • San Diego-McGlone, M.L., Jacinto, G.S., Dupra, V.C., Narcise, C.I.S., Padayao, D.O., & Velasquez, I.B. (1999). A comparison of nutrient characteristics and primary productivity in the Sulu Sea and South China Sea. Acta Oceangr.Taiwanica, 37, 229.
  • Giese, G.S., Chapman, D.C., Goud-Collins, M.R., Encarnacion, R., & Jacinto, G.S. (1998). The coupling between harbor seiches at Palawan Island and Sulu Sea internal solitons. J. Phys. Oceangr., 28, 2418- 2426.
  • Jacinto, G.S., San Diego-McGlone, M.L., Narcise, C.I.S., Velasquez, I.B., & Dupra, V.C. (1997). Chemical hydrographic features of the South China Sea between Luzon, Philippines and South Vietnam. In Conference on the Philippines-Vietnam Joint Oceanographic and Marine Scientific Research Expedition in the South China Sea 1996 (pp. 51-66). Hanoi.
  • Jacinto, G.S. & van den Berg, C.M.G. (1989). Dissolved behaviour of platinum in the Indian and Pacific Oceans. Nature, 338, 332-334.
  • van den Berg, C.M.G. & Jacinto, G.S. (1988). The determination of platinum in sea water using adsorptive cathodic stripping voltammetry. Anal.Chim.Acta, 211, 129-139.
  • Chester, R., Thomas, A., Lin, F., Bashram, A., & Jacinto, G.S. (1988). The solid state speciation of copper in surface water particulates and ocean sediments: 'fingerprinting' the global carbon flux. Mar. Chem., 24, 261-292.


Ph.D. Students

Lara Patricia Sotto

MS Students

Eduardo Bornilla Jr. 

Margie Rose Hermo

Graduated Advisees:

Ph.D. Students

Voravit Cheevaporn 

Dissertation Topic: (1991)

Della Grace Bacaltos 

Dissertation Topic: (1993) (Co-adviser)


MS Students

Charissa Ferrera 

Thesis: The Carboante System and Organic Carbon Concentrations of the High and Low Productivity Waters of the Sulu Sea (2011)

Imelda Velasquez 

Thesis: Speciation and complexation of dissolved Cu, Cd and Zn in Manila Bay  (2001)