UPV Theses and Dissertations
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Item Community structure, biomass production and carbon stock assessment of mangroves in Barangay Ambolong, Batan, AklanAgregado, Leizel B. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2013-04)Mangroves are evergreen shrubs and trees of several unrelated families that thrive within intertidal zones of sheltered flats, coves, bays, and estuarine regions extending inland along streams and river where water is primarily brackish. Continued threats to their existence call for their protection and conservation. This study was conducted to assess the community structure of mangroves in Brgy. Ambolong, Batan, Aklan by 1). measuring physico-chemical parameters (salinity, temperature, pH) 2). describing the community structure in terms of and in terms of a) basal area, b) stems per hectare, c) relative density, d) relative frequency, e) relative dominance, f) importance value, g) Index of Diversity, h) seedling and sapling density, and i) zonation pattern; 3). to assess the bidmass production and carbon stock. This study was done to provide preliminary information regarding the current status of mangroves in the area. Three (3) transect lines, each containing three (3) plots, were established in the area. Twenty (20) mangrove species belonging to eleven (11) families were identified: Acanthaceae - Acanthus ebreatus, Acanthus volubilis; Arecaceae - Nypa fruticans; Avicenniaceae - Avicennia alba, Avicennia marina, Avicennia officinalis, Avicennia rumphiana; Bombaceae — Camptostemon philippinensis; Euphorbiaceae - Excoecaria agallocha; Meliaceae — Xylocarpus grioanatum, Xylocarpus moluccensis; Myrsinaceae — Aegiceras corniculatum; Myrtaceae - Osbornia octodonta; Rhizophoraceae - Bruguiera cylindrica, Ceriops decandra, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stylosa; Rubiaceae - Scyphiphora hydrophyllacea; Sonneratiaceae - Sonneratia alba. Water salinity in the study area ranged from 27-30 ppt; soil temperature ranged from 28°C to 30°C. Avicennia marina had the highest values for basal area (4.22 m2/ha), stems per hectare (15,700 stems per hectare), relative density (63.56), relative frequency (63.56%), relative dominance (48.10%), and was the most important species with the importance value of 175. Rhizophora stylosa had the lowest values for basal area (0.002 m2/ha), stems per hectare (100 stems/ha), relative density (0.40 trees/ha), relative frequency (0.4%), relative dominance (0.23%), and was the least important species, having the importance value of 0.832. Rhizophora apiculata and Avicennia officinalis, together with Rhizophora stylosa, had the lowest value for stems per hectare (100 stems/ha), relative density (0.40 trees/ha), and relative frequency (0.4%). Seedling density was highest for Avicennia alba(187 seedlings/ha) and lowest for Bruguiera cylindrica (1 seedling/ha). Sapling density was highest for Avicennia marina (54 saplings/ha) and lowest for Excoecaria agallocha (1 sapling/ha). The Index of Diversity was H=0.598. The highest recorded litter was 336.6 g in December 19, 2012-January 2, 2013 while the lowest was recorded at 18.2 grams in December 5-December 29, 2012. Highest biomass production was that of Avicennia marina (962.94 tons/ha), while the lowest was Avicennia officinalis (0.009 tons/ha). Avicennia marina had the highest carbon stock value of 433.32 tons/ha; the lowest was that of Avicennia officinalis (0.004 tons/ha).Item Effects of pH and salinity on growth and survival of juvenile sea cucumber Holothuria scabra (Jaeger, 1833)Abagat, Christian M. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2012-03)Sea cucumber aquaculture could provide a solution to both enhance declining wild sea cucumber populations through restocking and provide sufficient beche-de-mer product to satisfy the increasing Asian market demand. The growth and survival of hatchery-reared Holothuria scabra juveniles at different pH-salinity levels were investigated. Juveniles were exposed for 14 days in six pH-salinity levels: Trt 1 (pH 6.5 — 6.7, 26-28 %o), Trt 2 (pH 6.5 - 6.7, normal salinity), Trt 3 (pH 7.0 - 7.2, 26-28 %o), Trt 4 (pH 7.0 — 7.2, normal salinity), Trt 5 (normal pH, 26-28 %o) and Trt 6 (normal pH, normal salinity) as the control. Multivariate analysis of variance (MANOVA) with repeated measurements revealed that pH and salinity had a significant effect on growth (length, width, and weight) and survival of H. scabra juveniles. Slight seawater desalination combined with high acidification (pH: 6.5-6.7) had lethal effects on H. scabra juveniles. While H. scabra juveniles could be reared in seawater with pH ≥ 7.0- 7.2 and salinity ≥ 26-28 %o, ambient seawater conditions remained the most suitable in rearing H. scabra juveniles for optimum growth and survival.Item Documentation of food handling practices in relation to health conditions of children aging 0 to 6 years old in Barangay Lanag Sur, Tubungan, IloiloArcolas, Kezia Lois; Belleza, Noel Francis; De Leon, Mary Antonette; Lebin, Ma. Angeli; Nisorrada, Jea Rochelle; Silva, Alyssa Joy; Rafols, Sofia Aprille Grace (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2012-04)Improper home food handling preparation and consumption practices by consumers, inadequate hygiene practices, consumption of raw and unsafe food, as well as cross contamination by raw food are some factors and practices that have been implicated in food borne outbreaks in the home (Taulo et al., 2006). A survey was conducted to 27 households with children aged 0-6 years old from Barangay Lanag Sur, Tubungan, Iloilo. Of the 27 respondents, majority belong to the 30- 39(46.15%) age group, are housewives(65.38%) who were also in charge of preparing the food(53.8%), with monthly income ranging from 0-4999 pesos(57.69%). Among the respondents, six of them were randomly taken for sources of food sample which was tested for physical and microbial examination. Based on the survey, food preparation practices of households in the barangay is composed of washing, cutting, rewashing, boiling to cook/sterilize (for infant formulas), and cooling to room temperature. Majority of the respondents consume right kind of foods essential for nutritional use and use untreated spring water for its preparation. Food samples taken have pH values ranging from 6.15 to 6.975. The test for coliform indicated that two out of six households were positive for presence of coliform. Among the common illnesses of children recorded, 96% have had a history of acute respiratory infections and 84% have had episodes of gastrointestinal illness. Food handling practice in the community is simple and not capable of eliminating pathogenic substances like coliform bacteria totally.Item Antibacterial activity of Aqueous and Methanol extracts of selected Basidiomycetes from UPV, Miagao, Iloilo, PhilippinesAmbubuyog, Marja Victoria U. (Division of Biological Science, College of Arts and Sciences, University of the Philippines, 2013-03)The Basidiomycetes represent an enormous source for natural products with diverse chemical structures and wide-ranging antimicrobial activity. This study was done to investigate the antibacterial property of selected species of basidiomycetes aqueous and methanolic extracts against Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa. Specifically, it aimed to (1) determine the antibacterial activity of the aqueous extract of selected species of basidiomycetes in inhibiting the growth of Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa based on the zone of inhibition; (2) determine the antibacterial activity of the methanolic extract of selected species of basidiomycetes in inhibiting the growth of Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa based on the zone of inhibition; and (3) compare the aqueous and methanolic extracts of selected species of basidiomycetes in inhibiting the growth of Staphylococcus aureus, Escherichia coli, and Pseudomonas aeruginosa based on the zone of inhibition. A total number of ten species were collected namely Auricularia sp., Schizophyllum sp., Trametes pubescens, Trametes versicolor, Trametes elegans, Ganoderma sp.(l), Ganoderma sp.(2), Stereum sp. and two unknowns. Dried samples were crushed and extracted with water and methanol. Antibacterial activity was determined using the Kirby-Bauer disc diffusion method. The results showed a negative to weak inhibition against the test microorganisms which is inconsistent with the results of previous studies. It could possibly be attributed to the preparation of the samples and the fruiting body maturity that influenced the antibacterial potential of the samples. It appears that fruiting bodies used in the present study may not be reliable sources of bioactive compounds for antibacterial activity.Item Risk factors and prevalence of dental caries among students at Tubungan Central Elementary School, Iloilo, PhilippinesAbalajon, Karl Vincent P.; Caoyonan, Liza Marie D.; Fernandez, Natasha Andrea; Gequinana, Apple Joy F.; Lava, Lara Cristy S.; Millado, Justine Bennette H.; Rivera, Tess Corgette A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2011-03)Pulpitis has been the leading cause of morbidity among adults in Tubungan, Iloilo for the past three years. Pulpitis may develop from untreated dental caries as this make the deeper layer of the teeth more susceptible to bacterial colonization. Hence, this study aimed to determine the prevalence of and the risk factors associated with dental caries among school age children in Tubungan Central Elementary School. This study will further investigate the possible causes of the high in prevalence of dental caries, and eventually introduce means of decreasing its morbidity in the municipality. One hundred nineteen students from Grades one to six were included in the study. The dental caries status was determined using the DMFT (Decayed, Missing, and Filled Teeth) index. The dental caries status was determined using the DMFT (Decayed, Missing, and Filled Teeth) index. The nutritional status was assessed using Weight for Age (WFA), Height for Age (HFA), and Weight for Height (WFH) as parameters as parameters. The Oral Hygiene practices, socio-economic status and food intake of the respondents were determined intake of the respondents were determined through an interview schedule. The prevalence of dental caries was 75.6%, with a mean DMFT of 2.97. Grade 2 students had the highest prevalence (95%) and DMFT index (5.9) among the grade levels. The DMFT index of each grade level was found to be significantly different (p=0.000). There was no statistical significance between the DMFT indices between males and females, although the mean DMFT of females was higher than males. There is no significant association between the Socio-Economic status of the family and DMFT index of the respondents. Only food rich in cereals and starches had significant association with the DMFT index. It is recommended that the government should intensify the campaigns on Oral health alongside other forms of health education and dietary and nutrition advice.Item SULONG BACANAbalajon, Karl Vincent P.; Caoyonan, Liza Marie D.; Fernandez, Natasha Andrea; Gequinana, Apple Joy F.; Millado, Justine Bennette H.; Rivera, Tess Corgette A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2011-03)Public Health is defined as the common attainment of the highest level of physical, mental, and social well-being and longevity consistent with available knowledge and resources at a given time and place. Also, it is the art of applying science in the context of politics so as to reduce inequalities in health while ensuring the best health for the greatest number. There are two distinct characteristics of Public Health. First, it deals with preventive rather than curative aspects of health, and second, it deals with population-level, rather than individual-level health issues. The focus of public health intervention is to prevent, rather than treat, a disease, through surveillance of cases and the promotion of healthy behaviors. Hand washing, vaccination programs, and the distribution of medicines are examples of public health measures. The United Nations’ World Health Organization defines health as “a state of complete physical, mental, and social well-being and not merely the absence of disease or infirmity.” Public health has seven categories:- Activities conducted on a community basis
- Activities designed for prevention of illness, disability, or premature death
- Activities related to comprehensive health care
- Activities concerned with collection, preservation, analysis, and use of vital records
- Public health education
- Comprehensive health planning and evaluation
- Research