UPV Theses and Dissertations
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Item Fungal pathogen associated with Rhizophora stylosa: A comparative study between oiled and unoiled sites within Taklong Island National Marine Reserve (TINMAR), Nueva Valencia, GuimarasBalanga-an, Kristoffer (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2009-03)Mangroves, refer to an assemblage of trees and shrubs that inhabit the coastal intertidal zone in tropical and subtropical regions. They help in the soil formation, protection, and stabilization of our coastal environment as well as serve as shelter and breeding grounds for some of our marine organisms. A mangrove habitat represents the borderline between land and sea and is considered as one of the principal places where spilled oil and associated impacts converge. Oil spill threaten mangroves by predisposing the plants to fungal attacks thereby reducing their resistance to stress and diseases. Studies also show that certain fungi species are able to utilize oil in contaminated mangrove species. This study generally aims to compare the fungal population found on the diseased leaves of Rhizophora stylosa between oiled and unoiled sites in the Taklong Island National Marine Reserve (TINMAR). It also aims to isolate, characterize and identify fungi present in diseased leaves of Rhizophora stylosa using potato dextrose agar (PDA) culture media and determine their frequency of occurrence. Leaf samples were collected from two sites in TINMAR, one of which was contaminated by oil and the other one was not. Three trees were selected to represent each of the two sampling sites (oiled and unoiled), and to each of the selected trees, three diseased leaves were collected. The results of this study showed the dominance of some species of fungi namely, Aspergillus (40%), Penicillium (20%), Cladosporium (13.33%), Monilia (6.67%), Mycelia (6.67%), Humicola (6.67%), and Pestalotiopsis (6.67%). Five out of these seven genera were isolated from the unoiled site while six of these were isolated from the oiled site. Generally, the fungal population was observed to be greater in the oiled site than in the unoiled. This preliminary data indicate that R. stylosa might still be undergoing stress due to the remaining components of the spilled oil in the area. However, this can only be resolved by further monitoring.Item Cost structure and profitability of oyster farming in Panay, CapizBaes, Jese B. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2002-03)The study focused on the economic analysis of oyster farming; particularly productivity, costs and returns, income, and employment aspects as they relate to different farm sites, farm sizes, and methods of culture in Panay, Capiz. A total of 27 oyster farmers were interviewed. Results revealed that the value of production per farm was estimated at P50,855, greatest in Butacal and least in Bantigue. By farm size, it appeared that the small farms were more efficient per unit area. The combination of broadcast, stake and hanging methods yields the highest crop per farm. Oysters harvested from the farm were primarily sold. About 5% were given away to friends, relatives, or paid for services, and family members consumed only 2%. Consisting mostly of boat/raft and plots, farm investment was relatively low in Agojo/Tanza Norte than in other farm sites. Butacal had the largest investment of P49,803 per farm. Investment per unit area was relatively less for the bigger farms. The hanging method required the least investment while the broadcast with stake appeared to be the most costly. Hired labor and food were the major variable inputs, depreciation accounted for fixed cost and opportunity cost primarily included opportunity cost of investment. Total expenses per farm averaged P5,623. By farm size, total costs were lower in larger oyster farms. As the farm size increased, expenses also increased while per unit area decreased with increasing farm size. Oyster farmers using the broadcast with stake method incurred the largest farm expenses. Gross income was estimated at P49,961 per year. A direct relationship between farm size and gross income exists. By method of culture, the combination of broadcast, stake and hanging methods earned the highest gross income. The same relationships as that for gross income were observed in the analysis of the net income. On the average, an oyster farmer received a gross profit of P49,727 and a pure profit of P45,232. Gross and pure profit increased with farm size. The combination of the broadcast, stake and hanging methods earned the highest pure profit of P79,511 Small- sized farms and farms that used the hanging method received negative pure profits. The study recommends that the government should take steps to improve the performance of the farms especially with the low-income farm sites and should seek ways of advancing the socioeconomic condition of oyster farmers. Likewise the municipal governments should properly implement the monitoring of oyster farms to check the socioeconomic conditions, the plans of the oyster farmers, and the obstacles they encountered toward the improvement of their business. Researches directed at enhancing the productivity levels of oyster farming should be given priority. Oyster farming being a part-time activity must be complemented with programs that encourage alternative income sourcesItem An assessment of the fishery ordinances of the different coastal municipalities in the Province of Iloilo, 1992-1998Almero, Flora B.; Gerona, Ma. Leda G. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 1999-12)This research project is an assessment of the fishery ordinances of the different coastal municipalities in the Province of Iloilo. The study covers the fourteen (14) coastal municipalities of the Province namely; the Municipality of Anilao, Banate, Barotac Nuevo, Barotac Viejo, Batad, Carles, Concepcion, Dumangas, Estancia, Miag- ao, Oton, San Dionisio, San Joaquin and Tigbauan. The primary data were taken from the various municipal fishery ordinances of the different coastal municipalities under study, and the national fishery policies (RA 7160, PD 704, RA 8550). The researchers also employed field interviews with selected fisherfolk leaders as a source of first hand information concerning the recent situation of the fishery industry in their respective municipalities. It was found that: (1) the fishery industry in the Province of Iloilo is facing problems on overexploitation, overfishing, pollution, and habitat destruction; (2) the primary concern of the over-all policy mosaic for the fishery industry is the rehabilitation and protection of the coastal environment, the limitation of access to fishery resources comes as the secondary concern, while the protection of the rights of municipal fisherfolk appears in a very limited number of promulgations only; (3) generally the provisions in the over-all policy mosaic is consistent and complimentary, both vis-a-vis the national fishery policies and within their respective municipal fishery ordinances where the provisions belongs. Assessing the municipal fishery ordinances of the different coastal municipalities in the Province of Iloilo, it was found that the goal of the over-all policy mosaic is the promotion of sustainable development for the fishery industry so as to achieve food security in terms of fish.Item Willingness-to-pay for the conservation of mangrove site in Dumangas, IloiloAgapito, Arianne I.; Guadalupe, Ronell D. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2011-03)This study was designed to determine the willingness-to-pay of the residents of Dumangas, Iloilo for the conservation of the existing mangrove sites in their area. Data were gathered through personal interviews using an interview schedule among 240 household representatives equally distributed in six barangays: three coastal, three noncoastal. Results of the study showed that most of the study participants were aware and knowledgeable about the existence of mangroves, its uses and benefits. The popular barangays identified to have mangrove sites included Sapao (31.33%) and Ermita (32.92%). Using dichotomous choice willingness-to-pay method with randomly assigned bid prices, results showed that most of the study participants both from coastal (89.17%) and non-coastal barangays (91.67%) were willing to pay for the conservation of mangroves. The main reason cited was that they want to participate in programs by the local government that aims to conserve the environment. When adjusted to level of certainty, there was slight difference in the number of study participants who were willing-to-pay; mean willingness-to-pay amounted to Php 86.47 without adjustment to level of certainty and Php 76.17 when adjusted to level of certainty. Knowledge index rating, civil status and bid price were the significant factors that affect the willingness-to- pay without adjustment to level of certainty at 5% level of significance. When adjusted to level of certainty, knowledge index rating (5%) and bid price (1%) were the significant factors. Annual surcharge in Community Tax is the preferred payment vehicle of the study participants for the conservation.Item Cost analysis of coral gardening in Bato Bukay MPA, Guimbal, IloiloAcob, 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.Item "Sipak nga Banwa": A history of Valderrama, Antique (ca.1500-1945)Alagos, Leizl L. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2004-05)This is a descriptive study of the history of Valderrama from the pre-Spanish period to the Japanese occupation (ca.1500-1945). Long before the colonial period, the town was already settled by "tumandok" or native residents composed mainly of two groups of settlers— Bukidnon and Taga-Baybay. Bukidnon or mountain people of Valderrama came from the nearby mountain ranges of Mt. Baloy and Mt. Igcoron, while Taga-Baybay or coastal people came Ilaures, the coastal barangay of Bugasong. Both groups settled and worked together in Caberi-an or what is now "Valderrama". Old residents of Valderrama refer to their town as "Sipak Nga Banwa" literally, "the town going to another direction". "Sipak nga Banwa" has a double meaning. It identifies the early settlers who abandoned their coastal community to go to the interior Valderrama. These coastal people left and "nagsipak" which meant "went to another way or direction". Another meaning refers to the town's geographical location.From the souther part of Antique going upward where coastal towns of Antique are located, the road to Valderrama suddenly turns to the right or another way, "nagsipak". During the pre-Spanish period, the babaylan (priest healer) were considered as the most respected persons in the town. These baybaylan healed the sickness of the people. When the Spaniards came into the place, the colonizers spread and converted many natives to Christianity but not without staging a resistance. The Bukidnon and Taga-Baybay babaylan fought against the Spanish colonizers when the Philippine Revolution broke out. in 1896. Though the town was not directly affected by the Philippine Revolution of 1898 (Spanish-American War), the natives considered the Americans better than the Spaniards. It was during this period that the economic and political life of the town improved due to sugarcane and tabacco cultivation. However, When the Japanese occupied the town, economic and political development became stagnant due to the ravage of the war. As a result, many residents of the town joined the guerilla forces in the nearby mountains due to the harsh treatment and abuses of the Japanese soldiers. Finally, due to the outbreak of the Second World War (1942) in the province, which resulted to the bombing of Japanese camp in Atique, the Japanese soldiers left the town of Valderrama.Item Analysis of the consumption pattern of microcredit borrower and non-borrower households from three urban coastal barangays in Culasi, AntiqueAmmen, Neil D. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2011-03)This paper analyzed the consumption pattern of microcredit borrower households from the three urban coastal barangays in Culasi, Antique, and compared that with the non-borrowers. A total of 140 households were surveyed of which 46, 50, and 44 came from barangay Centro Norte, Centro Población, and Centro Sur, respectively. Out of the total households surveyed, 40% were ‘identified borrowers and the remaining 60% were non-borrowers. In addition, while only 33% were identified as fishers, the bigger percentage belonged to the non-fisher households. Consequently, these groups were further categorized into (1) fisher-borrower, (2) non-fisher-borrower, (3) fisher-non-borrower, and (4) non-fisher-non-borrower and a comparison of the differences in their consumption patterns was executed. Survey results showed that the top three household expenditures of the three urban coastal barangays were food, debt repayment, and education. This study also investigated the impact of per capita monthly expenditure and other household characteristics on the budget share of 20 commodities (food and nonfood) consumed by borrower and non-borrower households and found that income elasticities of the said commodities significantly vary among household categories. Results from the estimation and correlation on the quadratic model suggested that borrowers of microcredit programs are better off in terms of consumption than non-borrowers.