Spatial and Temporal Abundance of the reef gastropod Tectus niloticus (Gastropoda: Tegulidae) in Marine Protected Areas in Palawan, Philippines: Prospects for Conservation

Effective protection within the Tubbataha Reefs Natural Park (TRNP) has led to high densities of the reef gastropod Tectus niloticus or 'trochus', with larger individuals being abundant across three habitat types. However, trochus density declines with distance from the Ranger Station, indicating that proximity to protection is critical for population health. The study also found a decline in abundance between 2006 and 2008 at permanent monitoring sites, followed by slight recovery trends toward 2010, suggesting resilience when fishing pressure is relieved. In contrast, unguarded and continuously exploited Marine Protected Areas (MPAs) on mainland Palawan harbored the least numbers of trochus, but the presence of recruits in these areas hints at potential population recovery if fishing restrictions are strictly enforced. This research underscores the importance of well-managed MPAs in restoring biodiversity, benefiting both ecosystems and fisheries.

(Ed.). (2016). Spatial and Temporal Abundance of the reef gastropod Tectus niloticus (Gastropoda: Tegulidae) in Marine Protected Areas in Palawan, Philippines: Prospects for Conservation. Iranica Journal of Energy and Environment. https://doi.org/10.5829/idosi.ijee.2016.07.02.16