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UPV Theses and Dissertations

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Keyword: search.filters.keyword.Coastal areasSDG: search.filters.sdg.SDG 13 - Climate action

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    Mangrove community structure survey in Iloilo River
    Bayate, Bryna Kimberly L. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2004-04)
    Mangroves are highly productive forests growing along tropical tidal mudflats and shallow water coastal areas where water is generally brackish. The structure of the mangrove stand in the Iloilo River was studied using the transect line plot method with 55 plots established in the 3 out of 4 stations of the river. Community Structure is described in terms of the following parameters: basal area, stems per hectare, relative density, relative frequency, relative dominance and importance value of the species and the Shannon Index of Diversity. Variations in these parameters are correlated with certain physico-chemical factors- soil and water temperature, soil and water pH, and water salinity.Nineteen(19) true mangrove species were found in the area belonging to 10 families. These include Mysinaceae family represented by Aegiceras corniculatum ; Avicenniaceae family represented by Avicennia alba, Avicennia marina, Avicennia officinalis and Avicennia rumphiana; Euphorbiaceae family represented by Excoecaria agallocha; Sterculiaceae family represented by Heritiera littoralis; Combretaceae family represented by Lumnitzera racemosa; Palmae family represented by Nypa fruticans; Rhizophoraceae family represented by Bruguiera cylindrica Rhizophora apiculata, Rhizophora mucronata, and Rhizophora stylosa; Sonneratiaceae family represented by Sonneratia alba, Sonneratia caseolaris, and Sonneratia ovata.Ruciaceae family represented by Scyphiphora hydrophyllacea and Meliaceae family represented by Xylocarpus granatum, and Xylocarpus meckongensis. Avicennia officinalis has the highest total basal area of 650.69m2/ha, Avicennia alba, Aegiceras corniculatum, Avicennia marina, Avicennia officinalis, Avicennia rumphiana, Exoecaria agallocha, Lumnitzera racemosa, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stylosa, Sonneratia alba and Xylocarpus moluccensis have equal relative frequency of 0.074. Avicennia marina obtained the highest stems per hectare with a value of 38933.33, relative density of 0.405 relative dominance of 0.332 and importance value of 0.913. The index of diversity is 1.010, indicating that the area is diverse.
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    Cost analysis of coral gardening in Bato Bukay MPA, Guimbal, Iloilo
    Acob, Philina Riva L.; Rojas, Jan Katherine C. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2016-06)
    This study analyzes the costs of coral gardening in Bato Bukay MPA in Guimbal. Iloilo. Cognizant of the degradation of their coastal areas and fisheries, the community of Bgy Nalundan, where the marine protected area is located, sought to find solution through marine conservation and coral gardening. Being the habitat and breeding grounds of fishes, coral reefs are one of the most important natural resources that people must protect. Hence, several projects were implemented to propagate the establishment of Marine Protected Areas such as the deployment of artificial reefs and coral gardening activities. Costs of coral gardening in the site were estimated using key informant interviews with individuals who were involved with or who were knowledgeable on the establishment and maintenance of the project, and from secondary sources, thereby enabling the computation of the total costs. A survey of randomly selected participants that included Contingent Valuation Method was conducted in barangays Nalundan, Calampitao and Cabubugan, to determine the socio-economic profile and estimate the local community support through their willingness-to-pay and willingness to support in kind. Proportional sampling formula, adjusted to small population was used to determine the number of these participants across the barangays. The total cost for coral gardening on its first year was estimated as Php 336.684 combining all the fixed, variable and opportunity costs incurred. Out of the total costs, 40% amounted as fixed costs, while 33% were variable costs, and 27% constituted opportunity costs. More people were willing to pay in-kind by volunteering than to pay in monetary terms for the project’s fund for sustainability.