Some Nesting Determinants of Olive Ridley sea turtles (Lepidochelys olivacea) in San Narciso Zambales Philippines: A Preliminary Study

Abstract

Nesting of Olive ridley sea turtle (Lepidochelys olivacea) must be free from any anthropogenic threats. Sitio Lapaz San Narcizo Zambales is located along the Coral Triangle in the Philippines which is rich in marine biodiversity. This study determined the history of PAWICARE Hatchery Project in sitio Lapaz, San Narciso, Zambales Philippines; describe the physical condition (distance of hatchery to shoreline, temperature during nesting-hatching period), determine heavy metals (Arsenic, Lead and Mercury) in water samples along the shoreline of Lapaz San Narciso Zambales. Mixed method was used to gather pertinent data on this study. Survey method was used (interview and focal group discussion) was used to describe the history and, physical condition of PAWICARE Hatchery Project. It was enriched with documentary analysis. Quantitative method was used to analyze water along the shoreline of PAWICARE Hatchery. Water analysis determined the Arsenic, Lead and Mercury content of water samples collected from three sampling sites near the hatchery. Results revealed that fishermen in sitio Lapaz were transformed into turtle rangers from turtle poachers. Residential houses are relocated far from the shoreline to avoid pollution. Temperature (27°C to 33°C) during nesting months (October to March) favors nesting of the turtles. Arsenic, Lead and Mercury in water along the shoreline were found at a very low level. The above determinants favored the nesting of Olive ridley sea turtles in San Narciso Zambales Philippines.