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UPV Theses and Dissertations

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    Conservation values of selected Bacolod City High School students for coral reefs in Sagay Marine Reserve, Negros Occidental
    Bocario, Sydney B.; Togonon, Celina C. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2016-06)
    Most studies on economic valuation take household heads as respondents since they earn money for the family and usually make most of the decisions. Other sectors of the society, especially the students or members of the youth, are rarely involved in these kinds of studies. Contrary to popular practices, this study considered the youth, particularly high school students, as the respondents of the survey. Through stratified and systematic random sampling, 400 respondents were chosen from five public high schools. Data was gathered from 80 students per school through a group administered survey. A protocol for a group-administered survey was constructed in order to ensure that data is collected in an unbiased, organized and systematic way. The willingness-to-pay of students in public high schools in Bacolod City for the conservation of the coral reefs in Sagay Marine Reserve (SMR) amounted to Php 3,156,894.02, per month. The selected mode of payment was through student government collection. The top reasons for their decision to pay were because of existence values, altruistic motive, and bequest value. Some of them were not willing to pay because they lacked funds, they did not trust the government, and/or they believe that the residents in coastal areas were the main reason why the resource is depleting. The factors that affected the students’ willingness-to-pay were price bid, household size, monthly income and perceived importance. This study found that high school students can contribute resources either in money or in-kind, and in fact the monetary WTP was within their capacity and cash received. This study may be significant to the youth by amplifying their roles in the conservation of natural resources. The methods employed in this study may also benefit future researchers and policy implementers.
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    Does a coral reef enhance the productivity of its surrounding waters?
    Peñafiel, Christen P. (University of the Philippines Visayas, 2019-06)
    Coral reefs have long been assumed and continually claimed to be origins of very high productivity, but how they attract organisms from and export nutrients to their neighboring waters remains largely unknown. Specifically, this study aimed at determining the space-time dynamics of nutrients and biomass redistribution around Hibotkan Rock Sanctuary (HRS), Banate, Iloilo, a sanctuary reef established by Municipal Fisheries Ordinance No. 12 covering an area of 25 ha. Twelve (12) sampling stations were established for space-time nutrient profiling, phytoplankton count, and supplementary measurements of water parameters, and four (4) stations for fish (biomass) visual survey. Results were analyzed using spatio-temporal plots and the Pearson correlation matrix (5% significant level). Nitrite was observed to be limiting, while nitrate was the most abundant in the waters of HRS. The predominant temporal variations of nutrients followed the flood tide (FT) and ebb tide (ET) cycles. In general, the tidal current direction appeared to control the redistribution of the nutrients (NO3-, NO2-, PO43-, and SiO44-). This study further revealed that stations of high nutrient concentration usually coincided with low levels of dissolved oxygen (DO). Species of fish observed were all indigenous and well-known inhabitants of the coral reefs. Furthermore, no other families of fishes (such as those of commercial value) were caught on record. Overall, there was no clear indication of import or export of living biomass in the HRS area. It can be inferred from the results that the fabled high productivity of coral reefs has no clear scientific basis; consequently, the Marine Protected Areas (MPAs) concept also appears to have no solid foundation.