Journal of Ecology and Environment

The Ecological Society of Korea (한국생태학회)
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The benefit of one cannot replace the other: seagrass and mangrove ecosystems at Santa Fe, Bantayan Island

  • Mendoza, Ayana Rose R. (Biology Department, University of San Carlos, Talamban Campus) ;
  • Patalinghug, Jenny Marie R. (Biology Department, University of San Carlos, Talamban Campus) ;
  • Divinagracia, Joshua Ybanez (Biology Department, University of San Carlos, Talamban Campus)
  • Received : 2019.02.05
  • Accepted : 2019.04.01
  • Published : 2019.06.30
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Abstract

Background: In the Philippines, the practice of planting mangroves over seagrass has been a practice done to promote coastline protection from damages done by storms. Despite the added protection to the coastline, the addition of an artificial ecosystem gradually inflicts damage to the ecosystem already established. In this study, seagrass communities that had no history of mangrove planting were compared with those that had mangrove planting. The percent substrate cover of seagrass in the sampling areas was determined, and the macroinvertebrates present in the sampling areas were also observed. The study was conducted based on reports of mangrove planting activity that disrupted seagrass functions on Santa Fe, Bantayan Island, Cebu. Transect-quadrat method sampling was done to assess the chosen sites. Results: Six species of seagrass was found on the site without mangrove planting which was barangay Ocoy (Cymodocea sp., Thalassia sp., Halodule sp., Enhalus sp., Halophila sp., and Syringodium sp.) and had a higher percent cover, while only four were found on the site with mangrove planting (barangay Marikaban). It was also found that barangay Marikaban had a lesser Shannon-Wiener and Simpson's index compared to barangay Ocoy. Jaccard's index of similarity between the two sites was low. Conclusion: With the results of the assessment, we recommend proper monitoring of future mangrove planting activities and that these activities should not disrupt another ecosystem as all ecosystems are important.

Keywords

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