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Undergraduate Special Problem

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14583/30

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Committee Chair: search.filters.chair.Nievales, Marie Frances J.SDG: search.filters.sdg.SDG 12 - Responsible consumption and production

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    Community structure of holothuroids in selected seagrass beds in Taklong Island National Marine Reserve, Guimaras, Philippines
    Calaguing, Aldwyn C. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2018-06)
    Sea cucumbers are beneficial to mankind commercially as food and medicinal commodity. Overexploitation and illegal catch of these organisms even within Marine Protected Areas (MPAs) caused stock depleting and even local extinction of some populations in the country. Monitoring and regular assessment of their population is a must for their proper management and protection. This study investigated the status of holothuroid community within 4 selected seagrass meadows in Taklong Island National Marine Reserve (TINMR), Nueva Valencia, Guimaras. Holothuroid composition and estimates of density, frequency and distribution were determined through plot method. Species identification was based on gross morphology and spicule analysis. There were 40 individuals collected identified as 5 species, namely, Holothuria atra (n = 18), Holothuria pulla (n = 1), Holothuria scabra (n = 5), Bohadschia vitiensis (n = 2) and Synapta maculata (n = 13). The first 4 belonged to Order Aspidochirotida and the last belonged to Order Apodida. Their distribution and community structure in TINMR are likely influenced by the physical and chemical environment, seagrass community poaching, and cryptic behavior.
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    A study of the gut contents of compressed tubby (Canthigaster compressa) from Talibon, Bohol and Palompon, Leyte, Philippines
    Caduada, Laymart A. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2017-06)
    The Philippines has one of the longest coastlines and is among the top producers of fisheries products in the world. The industry however is threatened by unsustainable fishing practices and dwindling resources. Proper fisheries management is hindered by an extensive lack of biological information on resource populations. Studying fish feeding habits based on gut content analysis could provide insights on fish feeding patterns and trophic interactions in aquatic food webs and enhance our understanding of exploited resources. The study compares the composition of the gut contents of Canthigaster compressa caught by sled trawl in seagrass beds in Talibon, Bohol and Palompon, Leyte. Sixty eight specimens from Talibon and 80 from Palompon were examined. Chyme made up 70-76% of the total gut contents in both areas. A total of 23 prey items were observed. Diet composition in Palompon was more diverse as compared to Talibon. Gut contents changed with size/age, with an apparent increase in the proportion of seagrass/algae as fish size increased. This suggests that the tubby shifts to a more herbivorous diet as they grow older. The amount of forams in the guts also decreased with size which could be attributed to a shift in habitat from seagrass to coral reefs. The results also show that crustaceans are more abundant in Palompon than in Talibon which could mean that Palompon has a richer seagrass-associated crustacean population. Further studies about the abundance of crustaceans in the fish diet in Palompon and Talibon is encouraged as it could be useful in assessing the ecological conditions of the areas.
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    Phytosociological study of Isla Patay Moro in Taklong Island National Marine Reserve, Nueva Valencia, Guimaras, Philippines
    Bela-ong, Andrea Lucyle (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2017-06)
    Small islands may contain unique plant composition compared with larger islands due to size, isolation and exposure. Unfortunately, information on small island flora in the tropics is limited considering that these islands are now subjected to impacts of climate change and increased anthropogenic pressure. In addition, these islands are also subjected to invasion of non-native species that may alter the overall ecology of the islands. There is lack of basic information on what constitute a typical flora of small islands. Thus, a phytosociological study was conducted in Isla Patay Moro, one of the many small islands within Taklong Island National Marine Reserve, Nueva Valencia, Guimaras, Philippines from December 2016 to April 2017 in an attempt to provide relevant information. Specifically, it described, identified and classified the flora present in the islands as well as described the community structure in terms of species composition, stand height, stand basal area, importance value and species diversity and evenness. The flora of the island is dominated by trees and shrubs and a few vines. A total of 30 species were identified representing 19 families. The most common and dominant species was Streblus asper with an importance value of 57.80. The total sampled area of the islands was 600 m2 and the total stand basal cover of 20,450.17m2/ha. The species diversity of the islands was 1.17 and 0.87 by Shannon and Simpson diversity indices, respectively, implying low species diversity. The stand height of the flora ranged from 2.2 to 8.47 meters. Presence of exotic species, Lantana camara, Leucaena leucocephla were also found. This study may serve as a baseline for further researches and the results may aid in the development of floristic conservation activities particularly for the presence of invasive or non-native species that may alter the natural flora in the future leading to ecological instability of the island. This is the first systematic survey of higher vascular plants on the island.
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    Association of topography and demographic & socioeconomic characteristics to the compliance of mothers to reproductive health services in Maasin, Iloilo
    Azarraga, 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)
    Reproductive health is a state of complete physical, mental and social well-being in all matters relating to reproductive functions and processes. This study was conducted in the 50 barangays of Maasin, Iloilo with the purpose of determining if factors such as topography (highland or lowland) and demographic & socioeconomic characteristics (age, parity, highest educational attainment, occupation, and household asset index) have significant association with the utilization of reproductive health services such as prenatal care, family planning and delivery care. A total of 356 mothers (160 from lowland barangays and 196 from highland barangays) from the municipality were interviewed using a survey questionnaire. Statistical tools such as Chi-square, Fisher’s Exact Test, T-test and logistic regression were used to analyze the data. Using the results from the surveys, it was found that majority of the mothers from highland barangays had 6 or more children, low educational attainment, and low household asset index. Only educational attainment was known to be significantly associated (p-0.003) with compliance to prenatal care services. Parity was the only factor that was significantly associated (p=0.036) with compliance to family planning services. For delivery care services, age (p=0.047), parity (p=0.001), educational attainment (p=0.002) and occupation (p=0.003) were found to have significant association with topography, because mothers (31-49 years old) who are from highland barangays, who are unemployed, with low educational attainment and who have 6 or more children are more likely to deliver through non-facility based service. Results of this study showed that the rural health unit of Maasin has achieved a good coverage of prenatal care and family planning services since the values were not found to be statistically significant between highland and lowland barangays. However, the RHU still needs to restructure their projects to cater those mothers in highland barangays who still opt for non-facility based deliveries as it is statistically significant when in relation to topography.