Undergraduate Special Problem
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Item The community structure of mangroves in Ivisan, CapizBermoy, Gian Carlo A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2004-04)The structure of the mangrove community in Ivisan, Capiz was studied using the transect line plot method with fifteen plots established. This study aims to assess the community structure of mangroves in Barangay Agustin Navarra and Barangay Balaring, Ivisan, Capiz using accepted ecological indicators. Community structure is described in terms of the following parameters: basal area, stems per hectare, relative density, relative frequency, relative dominance, importance value of the species, and the Shannon Index of Diversity. Variations in these parameters are correlated with certain physico-chemical factors such as air and water temperature, soil pH, and water salinity. Little study has been done to document the mangroves in Barangay Agustin Navarra and Barangay Balaring, Ivisan, Capiz. This is the first systematic study done in the area; thus, the present study will provide vital information needed for its proper management. A total of nineteen true mangrove species represented by ten families were identified on Barangay Agustin Navarra and Barangay Balaring, Ivisan, Capiz. The true mangroves consisted of Aegiceras corniculatum, Avicennia alba, Avicennia marina, Avicennia officinales, Avicennia rumphiana, Bruguiera cylindrica, Bruguiera parviflora, Camptostemon philippinensis, Ceriops decandra, Exoecaria agallocha, Nypa fruticans, Osbornia octodonta, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stylosa, Sonneratia alba, Scyphiphora hydrophyllacea, Xylocarpus granatum and Xylocarpus moluccensis. All the species were present in Station 1 except Scyphiphora hydrophyllacea. The species present in Station 2 and in both stations were Avicennia marina, Avicennia rumphiana, Exoecaria agallocha, Osbornia oclodonta, Rhizophora apiculata, Rhizophora mucronata, Scyphiphora hydrophyllacea, and Sonneratia alba. Avicennia marina has the overall highest relative density of 340 trees per hectare, relative frequency of 22%, relative dominance of 266.655%, and importance value of 628.841%. Seedlings and saplings of Avicennia marina dominate the area indicating that the mangrove community is young and regenerating stand. Barangay Agustin Navarra has the highest index of diversity of 0.87 while Barangay Balaring has an index of diversity of 0.47. The overall index of diversity is 0.674.Item Community structure, biomass productivity and carbon stock assessment of mangroves in Barangay Tabon, Batan Bay, AklanBermeo, Ma. Ramela Angela C. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2013-04)The study aimed to assess the community structure, biomass productivity, and carbon stock assessment of mangroves in Barangay Tabon, Batan Bay, Aklan using the plot method. Specifically, it aimed to: 1. determine selected physical and chemical factors such as water salinity, water pH, soil temperature and characterization of soil substrates, 2. identify true mangrove species present in the area, 3. describe the community structure in terms of Stand Basal Area, Stems per Hectare, Relative Density, Relative Frequency, Relative Dominance, Importance Value, Shannon-Index of Diversity, Zonation Pattern, Seedling and Sapling Density, 4. assess the biomass productivity (both wood biomass, and litter fall), 5. estimate the amount of carbon stored in the mangrove forest (using allometric equation). A total of twenty-one true mangrove species belonging to 12 families were identified. Family Rhizophoraceae was the most represented with five species namely Bruguiera cylindrica, Ceriops decandra, Rhizophora apiculata, R. mucronata, and R. stylosa. The rest were also well represented namely Family Avicenniaceae- Avicennia alba, A. officinalis, A. marina, and A. rumphiana; Family Combretaceae- Lumnitzera littorea and Limnutzera racemosa; Family Sonneratiaceae- Sonneratia alba, and Sonneratia caseolaris; Family Acanthaceae- Acanthus ebracteatus; Family Bombacaceae- Camptostemon philippinensis; Family Euphorbiaceae- Excoecaria agallocha; Family Meliaceae- Xylocarpus moluccensis; Family Myrsinaceae- Aegiceras corniculatum; Family Myrtaceae- Osbornia octodonta; Family Arecaceae- Nypa fruticans; Family Rubiaceae- Scyphiphora hydrophyllacea. Basal area ranged from 0.11m2/ha for Ceriops decandra to 68.78m2/ha for Sonneratia alba. Avicennia marina had the highest stems per hectare with 22,600 stems/ha, while Bruguiera cylindrica had the lowest with 100 stems/ha. Avicennia marina occurred in all plots with 137 trees/ha and had the highest relative density of 38.38% and relative frequency of 38.42%. Sonneratia alba had the highest relative dominance of 48.49% while the lowest was Ceriops decandra with 0.08%. Avicennia alba, Bruguiera cylindrica, and Ceriops decandra had the lowest relative densities and frequencies at 0.3%. The most important species was Avicennia marina (107.6) and the least important species was Ceriops decandra (0.68). The area was considered to be diverse at 0.7206. On per transect basis, the highest index of diversity recorded was in Transect 2, while the lowest was in Transect 1. Avicennia and Sonneratia species occured both in the low intertidal zone (seaward) and mid-intertidal zone (transitional zone). Rhizophora, Nypa, Camptostemon, Osbornia, Lumnitzera, Bruguiera, Ceriops, Exoecaria, and Aegiceras were found in the mid-intertidal zone (transitional zone). Xylocarpus, Scyphiphora, and Acanthus occurred in high intertidal zone (landward). Avicennia rumphiana had the highest seedlings density of 1001 seedlings/ha, whereas Rhizophora mucronata had the highest saplings density of 96 saplings/ha. The lowest seedling and sapling density was Rhizophora apiculata (Iseedling/ha) and Camptostemon philippinensis (lsapling/ha) respectively. The species with the highest computed biomass of 1,287.78 tons/ha and carbon stock of 579.5 tons/ha was Sonneratia alba. The lowest was Ceriops decandra with biomass of 0.06 tons/ha and carbon stock of 0.03 tons/ha. A total of 2,080 tons/ha biomass and 936.34 tons/ha carbon stock was determined. Based on the litter fall, Transect 2 has the highest leaf fall weighing 580.4g. Litter weight was highest in January 2013 and lowest in December 2012 in all sampling sites.Item A preliminary investigation on the antimicrobial activity of Luffa cylindrica (Patola) leaf extractBenjamin, Paulette E. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2002-04)Four concentrations were prepared (100%, 75%, 50%, and 25%) from the Patola (Luffa cylindrical) leaf extract. Positive and negative controls were made in order to have a basis for comparison with the other four Patola leaf extract concentrations. Negative controls were purely sterilized distilled water, while the positive controls used were Amoxicillin for bacteria and Mycostatin for Candida albicans. The effectiviness of these concentrations was tested on the growth of the five selected microorganisms, namely: Staphylococcus aureus, S. epidermidis, S. saprophyticus, C. albicans and Microsporum canis. M. canis did not exhibit any growth and had no significant difference. Patola was found to inhibit the growth of S. aureus, S. epidermidis and S. saprophyticus at 100% concentration. Patola leaf concentration of 75% weakly inhibited the growth of S. epidermidis and S. aureus. Concentrations of 50%, and 25% showed negative inhibitory activity. Candida albicans in all four concentrations showed negative inhibitory activities. The minimum inhibitory activity that was able to inhibit bacterial growth was at 75% leaf extract concentration.Item Comparison of the prevalence of error of refraction and color blindness among private and public primary pupils in Nueva Valencia, GuimarasBenitez, Ninotchka Vyent B.; Fuentes, Elyssa Marie C.; Jurilla, Raphaela Joy C.; Manderico, Rommel Vincent D.; Mateo, Mary Diadem O.; Raymundo, Nicollete Joy D.; Siojo, Chloe Naty Marie Eugenie A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2012-03)Refractive error is the number one cause of childhood blindness in the Philippines with a prevalence rate of 53% (3rd National Blindness Survey, 2004). Color blindness is an abnormal condition characterized by the inability to clearly distinguish different colors of the spectrum. This is a descriptive cross-sectional study aimed to assess the visual acuity using the Snellen Chart and prevalence of color blindness using the Ishihara pseudochromatic plates, among private and public elementary school pupils in Nueva Valencia, Guimaras. A total of 324 elementary pupils were included, 113 of them belonged to private school and 214 belonging to public school. The prevalence for both error of refraction (83/63) and color blindness (52/60) is significantly higher in private school than in public school. Age is a factor in developing both disorders. There is a direct correlation between higher income, and error of refraction and color blindness. Several factors could attribute to the results, including diagnostic procedures and lifestyle of the pupils. This study should help raise awareness regarding error of refraction and color blindness to the public, most especially to the parents who tend to neglect the visual performance of their children.Item Acceptability of the newly-formulated food recipes among selected age groups at Brgy. Tabat Tubungan, IloiloBeluso, Heziel F.; Buaron, Michelle Jane A.; Hubag, Angelie Rose C.; Macahilo, Judeilan A.; Mationg, Mary Lorraine S.; Nismal, Myles C.; Pido,Dianah D.; Simaurio, Geraldine C.; Sodusta, Valerie Joy M.; Yasa, Kutch V. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2007-03)This research study is a cross-sectional survey done among 90 conveniently selected residents of Brgy. Tabat Tubungan, Iloilo in order to determine the acceptability of the newly-formulated food recipes based on sensory analysis (appearance, smell, taste and texture), general acceptability, cost, and food action response. The ingredients used in each of the three new recipes namely tortang malunggay, alugbati-squash ukoy and Palawan delight are nutritious, cheap and indigenous to the community. The acceptability test was done among the three selected age groups: school-age children (6-12 yrs old), adolescents (13-19 yrs old) and adult (20-40 yrs old). Pre-tested structured questionnaires were used in the evaluation of the acceptability of the three recipes. Results were analyzed using frequency distribution and test of proportion to determine whether or not the prepared recipes are acceptable. Chi-square analysis was used to test the independence of acceptability of the food items based on the set criteria and the age group categories of the panelists. The results show that three newly formulated recipes namely tortang malunggay, alugbati-squash ukoy and Palawan delight were found to contain high amount of energy content (107 kcal, 181 kcal and 160 kcal) and essential nutrients such as vitamins A and C, calcium and iron which are needed and vital to the body. The percent Recommended Dietary Allowance requirements derived from the three newly formulated food recipes were 5.35% of the total caloric need per serving for the tortang malunggay, alugbati-squash ukoy and palawan delight could supply 9.05% and 8.00% of the total caloric needs. For the sensory test, results show that in terms of the appearance, the three recipes: tortang malunggay, alugbati-squash ukoy and Palawan delight are acceptable to 82.22%, 95.56%, and 84.44% of the panelists respectively. Smell of the three recipes is acceptable to 87.78% of the panelists. Among the ninety panelists, 87.78% and 83.33% said that the taste of the food recipes is acceptable. In terms of texture, tortang malunggay received the highest acceptance level of 88.89%. Based on general acceptability, Palawan delight was liked by 93.33% panelist. The computed Chi-square values show that the acceptability based on sensory analysis and general acceptability of the three food recipes (except the taste of alugbati-squash ukoy) is not dependent on the age group category of the panelists. The costs of the three recipes were also acceptable to 95.56% of the panelists. As to the food action-response, 95.56% expressed a favorable response. Because of the positive results obtained during the acceptability test on the three food items, the researchers recommend these recipes be included in Food Supplementation and Nutrition Education activities.Item Mangrove community structure in Makato River, Makato, AklanBejemino, Liza Marie P. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2004-04)Mangroves are plants that thrive in habitats with very limited conditions for plant life. They are usually found in intertidal zones and along tropical and subtropical coasts. A lot of mangrove forests were destroyed due to overexploitation mainly by human activities. This study was the first to be conducted to provide the community structure of mangroves in Makato River. This study will establish the importance of mangrove communities as well as provide necessary information for the proper management of the mangrove community. The study aims to assess the community structure of mangroves in Makato River, Makato, Aklan. It specifically aims the following: (1) determine selected physical and chemical factors; (2) identify and classify true mangrove species present in the area; and (3) describe the community structure in terms of Stand Basal Area, Stems per Hectare, Relative Density, Relative frequency, Relative Dominance, Importance value, Shannon Index of Diversity, Zonation Pattern and Seedling and Sapling Density. There was a total of 22 true mangrove species belonging to nine families found in the study conducted in the mangrove community in Makato River, of the municipality of Makato, in the province of Aklan. The nine families are Family Avicenniaceae which is represented by Avicennia alba, Avicennia marina, Avicennia rumphiana and Avicennia officinalis, Family Rhizophoraceae which is represented by Bruguiera cylindrica, Bruguiera gymnorrhiza, Bruguiera parviflora, Bruguiera sexangula, Rhizophora apiculata, Rhizophora mucronata , Rhizophora stylosa and Ceriops decandra, Family Sonneratiaceae which is represented by Sonneralia alba and Sonneratia caseolaris; Family Meliaceae which is represented by Xylocarpus granatum and Xylocarpus moluccensis; Family Myrsinaceae represented by Aegiceras corniculatum. Family Euphorbiaceae represented by Exoecaria agallocha, Family Sterculiaceae represented by Heritera littoralis , Family Palmae represented by Nypa fruticans , and Family Rubiaceae represented by Scyphiphora hydrophyllacea. The salinity in the area ranges from 0-35 ppt. Water and soil temperature ranges from 24 C to 27 C while the water and soil pH is relatively neutral, ranging from 6.81 to 7.04. The stand basal area for the whole sampling area is 1370.838 m2/ha2. Avicennia officinalis has the highest basal area with 235.896. Nypa fruticans has the highest stems per hectare in the whole sampling area with 12500. There is an average of 6472.727 stems per hectare. Nypa fruticans has the most number of individuals having the highest relative density of 27.572. Herritiera litloralis is considered to be the least dense species with only 0.074. The frequently encountered species in the sampling site in Makato River is Nypa fruticans with 11.36%. Herritiera litloralis is the least occurring species with 0.61 %. The most dominant species found in the sampling site in Makato River is Nypa fruticans with 17.989. Bruguiera gymnorrhiza is the least dominant species with 0.009. The most important species in the mangrove community in Makato River is Nypa fruticans having an importance value of 56.923. The least important species is Heritiera litloralis with an importance value of only 0.916. The mangrove community in Makato River, Makato, Aklan is considered to be a diverse area having an index of diversity of 0.999. The zonation pattern is distinct in the three stations with station 1 as the freshwater zone dominated by Nypa fruticans and species which prefer low salinity such as Xylocarpus spp., Exoecaria agallocha and Heritiera littoralis. Station 2 which is considered as the middle zone is dominated by Avicennia sp., Bruguiera gymnorrhiza, Bruguiera parviflora, Aegiceras corniculatum which prefer moderate salinity. Station 3 or the seaward zone is dominated by species that prefer high salinity such as S. caseolaris, A. marina and R. stylosa. The species with the most number of seedlings is Avicennia marina with 0.2777 while the species with the least number is Xylocarpus muloccensis with 0.0016. Avicennia officinalis has the highest number of saplings with a density of 0.4092 while the least are Sonneratia alba, Bruguiera parviflora and Aegiceras corniculatum with a density of 0.0032 each.Item Comparative analysis of the gut content of Scylla de Haan, 1833 (Crustacea: Decapoda: Brachyura: Portunidae) collected from the rivers of poblacion Sapian, CapizBautista, Florey Jane O. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2013-04)The natural diet for various sizes and both sexes of the mud crab Scylla sp. collected from the river located at Brgy. Poblacion Sapian Capiz, Philippines was determined. Gut content analysis was conducted for the mud crabs ranging from 30- 109.99 mm carapace width. Results showed that predominant food of mud crab Scylla sp. consists of crustaceans such as shrimps and crabs as well, fish, mollusk, sand shells, unidentified egg, and even plants. Most of the gut content however, consists of chyme due to heavy mastication and presence of the gastric mills that digest the food. There is no ontogenetic shift or difference in the diet as well as diet difference between male and female crabs. The results were discussed in relation with the species’ feeding patterns and the effect of the diet on the maturation of the crab:Item Analysis of the gut contents of largehead hairtail, Trichiurus lepturus (Linnaeus, 1758) in Surigao Del SurBarros, Andrea Philine R. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2019-06)The traditional gut content analysis is one of the methods used which investigates feeding interactions, specifically those belonging to the aquatic food webs. The ribbonfish, Trichiurus lepturus is an economically important fish, and due to its high demand to other south-east Asian countries especially in the Philippines, there is a targeted fishery for this resource. However, the catch of this species in the country has declined recently. Since feeding habits are fundamental to understanding the ecology of a community, this study aimed to analyze the gut contents of Trichiurus lepturus. A total of 66 guts were examined in the study. The size ranged from 101-505 mm in total length. They fed mostly on fishes including Encrasicholina sp., and shrimps such as Acetes, Penaeus, and Lucifer. Moreover, there was an occurrence of cannibalism but only larger individuals. Microplastics were also evident in most of the size classes.Item Techie nanay: Makabagong nanay para sa ligtas na buhayAzarraga, Alyssa Faye N.; Brazas, Jodelyn M.; Bordon, Jenn Margarette B.; Dofitas, Adrian Bernard A.; Gadong, Joshua Vincent Y.; Matinong, Kathleen Erica D.; Paguidopon, Cyril L.; Tabanar, Bianca Ysobel S.; Tantuan, Liza Beth F.; Temelo, Jason Andrei C.; Ynzon, Samuel P. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2017-06)Maternal mortality is an alarming problem in the Philippines and is usually caused by non-facility based deliveries (NFBD). In 2013, the DOH reported that the province of Iloilo has the highest maternal mortality rate in Western Visayas, and Maasin is located in this province. Among the 50 barangays of Maasin, Brgy. Abay was chosen due to its high cases of NFBD. This study was conducted to improve the knowledge, attitude and practices (KAP) of women of reproductive age (WRA) towards maternal health and reduce the cases of non-facility based deliveries among pregnant women of Brgy. Abay, Maasin, Iloilo. The KAP of the WRA was improved through a series of lectures in a span of 4 weeks. In order to improve maternal health in Brgy. Abay, the team introduced a smartphone application called iNanay for the use of pregnant women and launched a web server database in the Rural Health Unit (RHU). Both components help in pregnancy monitoring. For the project sustainability, the mothers elected a core team called “KaakABAY”. Smartphones were given to 6 pregnant women in Brgy. Abay and they were taught by the KaakABAY about the features of the application. Since no delivery took place within the six-week immersion, the effectivity of the iNanay app was solely evaluated by tracking the attendance of the pregnant women to their prenatal check-ups that were scheduled within the time of immersion.Item Survival and metamorphosis of the mud crab Scylla tranquebarica larvae fed with Brachionus plicatilis and Artemia naupliiBallescas, Ella Anne M. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2004-03)Despite the growing corpus of research on cultural nationalism, the state's role in producing cultural nationalism in a post-colonial and non-western setting and the phenomena from a bottom-up perspective continues to be little explored. This study examines the conditions under which national political leaders pursued policies to protect the cultural heritage of the country's indigenous cultural communities for the aims of political nationalism. From a top- down perspective, the study looks at the context, intent, content, state's implementation and caveats of the Indigenous Peoples Rights Act of 1997. While from the bottom-up perspective, the study looks at how the Bantoanon indigenous community mobilizes and organizes to navigate through state bureaucracy and ‘reappropriate’ the state's nationalism to meet their cultural goals. To examine the phenomena, the study on the textual analysis of existing written primary and secondary sources supplemented with oral interviews of key informants and a review of available literature. It finds that at the national level, political motives partly animated the support of political leaders for indigenous cultural heritage protection policies; that the state used heritage protection policies to pursue its political purposes; and that the support for political leaders for indigenous cultural heritage protection policies was premised on the condition that it did not interfere with the state's interests and diminish the state's rights. While at the Bantoanon indigenous cultural communities level, it finds that despite the caveats embedded in the country's heritage protection policies, the indigenous cultural community could mobilize and assert its rights, thus enabling it to ‘reappropriate’ the state's political institutions to meet its own cultural objectives. This thesis, therefore, argues that the relationship between the two parties under IPRA is mutually beneficial, with both the state and indigenous cultural communities finding some utility in the law.