Local conservation status and economic value of mangrove clam (Pegophysema philippiana) in sitio Maitom, Barangay Dahican, Mati City, Davao Oriental
Ace N Palma Gil | Phoebe Nemenzo-Calica | Jhonnel P. Villegas
Discipline: Environmental Science
Abstract:
This paper investigates the local conservation status
and economic value of Pegophysema philippiana in Maitom,
focusing on its population abundance, size distribution, and
threats to survival. This study collected and analyzed 377
specimens. The results revealed a population density of 4 ind/
m2. Furthermore, the collected specimens displayed smaller
average length and weight and lacked larger-sized individuals.
The study identified two significant threats to P. philippiana:
wastewater from adjacent prawn ponds and destructive gleaning
practices. Conservation efforts, such as site alternation and
selective return of premature individuals, were found to be
inadequate in addressing the decline in abundance. Additionally,
variations in physicochemical properties observed in this study
and previous studies require further investigation. Regarding
the economic value of P. philippiana, local pricing ranges from
Php 120.00/kg-Php 180.00/kg, with a prevailing standard price
of Php 150/kg. However, the pricing needs formal procedures
and assessments. The P. philippiana fishery in Maitom operates
at an artisanal level and requires essential gear or equipment,
including proper harvesting techniques. Consequently,
support activities beyond selling and consumption should be
present. To address these challenges, this paper recommends
establishing a formal business firm to streamline the flow of
P. philippiana. Improving the fishery enhances the economic
value, and conservation efforts can also be promoted, creating a
positive feedback loop benefiting stakeholders and the species.
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