“The Natural Wonders of Loreto, Dinagat Island , Surigao del Norte , Philippines ”.  A Paper presented during the 6^th National Convention of the Philippine Society for the Study of Nature, Inc. (PSSN), 15-21 May 2006, Kapalong, Davao del Norte, Philippines .

 “Evaluation of the Reproductive Status of Lutjanus spp. from Iligan Bay ”. A Poster presented during the 1^st Inter-Zonal Research Congress for Visayas and Mindanao, 17 – 18 November 2005, College of Architecture and Fine Arts Theater, University of San Carlos , Talamban, Cebu , Philippines .

 “The Biology of Abudefduf saxatilis”. A paper presented during the 37^th FIMFS Convention, 13 – 15 October 2005, MSU at Naawan, Naawan, Misamis Oriental, Philippines .

 “Male Vitellogenesis: A Biomarker of Endocrine Disruption in Iligan Bay ”. Poster presented during the 32^nd Annual Scientific Meeting of the National Academy of Science and Technology, 14 – 15 July 2005, Manila Hotel, Manila , Philippines .

 “Hepatic Response of Male Fishes to Industrial Effluent-Enriched Water of Iligan City ”. A scientific paper presented during the 4^th CSM Scientific Forum, 8 July 2005, Lecture Hall B, College of Science and Mathematics, MSU-Iligan Institute of Technology, Iligan City , Philippines .

 “Fishes of Iligan City ”. A Poster presented during the 36^th FIMFS National Convention, 13 – 15 October 2004, Southwestern Philippines University , Puerto Princesa, Palawan , Philippines .

 “The Adaptive Features of Stegastes nigricans Eggs: Survival and Persistence in Perturbed Environment”, A scientific paper presented during the 36^th FIMFS National Convention, 13 – 15 October 2004, Southwestern Philippines University, Puerto Princesa, Palawan, Philippines.

 “Gonadosomatic and Hepatosomatic Indices: Useful Biological Parameters in the Evaluation of Environmental Health of Iligan Bay ”. A scientific paper presented during the 16^th NOMCARRD Scientific Symposium on Research and Development Projects (Regional Level), 5 – 6 August 2004, Continuing Education Center , Central Mindanao University , Musuan, Bukidnon , Philippines .

 “GSI and HSI: Useful Biological Parameters in the Evaluation of Environmental Health of Iligan Bay ”. A scientific paper presented during the 2^nd Annual In-House Review for Research and Development Projects (Agency Level), 24 – 25 June 2004, MSU-IIT Mini-Theater, MSU-Iligan Institute of Technology, Iligan City , Philippines .

 “The Gonad of Juvenile Mugil cephalus: Implications to Life History Pattern in Iligan Bay”, A scientific paper presented during the 4^th Philippine Society for the Study of Nature National Convention, 15 – 17 May 2004, Bohol Agricultural Production Center, Dao, Tagbilaran City, Bohol.

 “Blast Off: Reaching Greater Heights in Science, Technology, and Environment Through Science Clubbing”, A paper presented during the Science Month Culmination Program, ICBC-NEW LIFE CHRISTIAN ACADEMY, R. Jeffrey Road, Pala-o, Iligan City, 26 September 2003

 “Assessment of Reproductive Anomalies in Two Teleost Fish from the Vicinity of an Industrial Zone in Iligan City (Philippines)” (Regional Level), A scientific paper presented during the 15^th NOMCARRD Symposium, 7 – 8 August 2003, SEARSOLIN, College of Agriculture, Xavier University, Cagayan de Oro City, Philippines.

 “Assessment of Reproductive Anomalies in Two Teleost Fish from the Vicinity of an Industrial Zone in Iligan City ( Philippines )” (Agency Level). A scientific paper presented during the 1^st Annual MSU-IIT In-House Review of Research Projects, 27 – 28 May 2003, MSU-IIT Mini-Theater , Iligan City , Philippines .

 “Assessment of Reproductive Anomalies in Two Common Fish Species from Kiwalan, Iligan City ( Southern Philippines )”. A scientific paper presented during the 34^th Convention of the Federation of Institutions for Marine and Freshwater Science, 17 – 19 October 2002, Leyte State University (VISCA), Baybay, Leyte , Philippines .