UPV Digital RepositoryUPV-DRUniversity of the Philippines Visayas
 

UPV Theses and Dissertations

Permanent URI for this communityhttps://hdl.handle.net/20.500.14583/10

Browse

Filters

2001 - 200922010 - 20171

Settings

AGROVOC Keyword: search.filters.agrovoc.environmentSDG: search.filters.sdg.SDG 14 - Life below water

Search Results

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    Floristic composition and diversity of mangroves in selected sites in the province of Antique, Panay Island, Philippines.
    Balinas, Lucelle V. (Division of Biological Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2006-03)
    Mangroves in the Philippines are in constant danger due to innumerable disturbances in the environment. The study endeavored to assess the floristic composition and diversity of the mangroves in the province of Antique through transect and ocular survey in the randomly selected sites throughout the province. Diversity in the region is high with the presence of 3 1 true mangrove species represented by 16 families and 14 genera. The species include Acanthus ebracteatus, A. ilicifolius, and A. volubilis from Family Acanthaceae, Avicennia alba, A. marina. A. officinalis, and A. rhumphiana from Family Avicenniaceae, Camptostemon philippinensis from Family Bombaceae, Lumnitzera littorea and Lumnitzera racemosa from Family Combretaceae, Excoecaria agallocha from Family Euphorbiaceae, Pemphis acidula from Family Lythraceae, Xylocarpus granatum and Xylocarpus moluccensis from Family Meliaceae, Aegiceras corniculatum and Aegiceras floridum from Family Myrsinaceae, Osbornia octodonta of Family Myrtaceae, Nypa fruticans of Family Palmae, Bruguieria cvlindrica. B. gymnorrhiza, and B. sexangula, Ceriops decandra, C. tagal, Rhizophora apiculata. R. mucronata and R. stylosa from Family Rhizophoraceae, Scyphiphora hydrophvllaceae from Family Rubiaceae, Sonneratia alba, S. caseolaris and S. ovata from Family Sonneratiaceae, and Heritiera littoralis from Family Sterculiaceae . The Shannon Index of Diversity used to determine the measure of diversity in the area is correlated with Pielou's Equitability Index for Evenness. The measures of indices showed that diversity and evenness of the mangal area in the province are directly related, with values of 0.73232 and 0.51163, respectively. Caluya showed the highest diversity index of 1.0132, which consisted of 28 species from 13 families and 15 genera, while Bugasong has a relatively low diversity of 0.0486, denoted by 6 species from 4 families and 4 genera. In general, the high variations in the geomorphology of coastal areas in Antique provided a wide range of substrata for colonization of mangroves that contributed to the high species diversity.
  • Thumbnail Image
    Item
    Valuing the conservation of sea turtles in Brgy. Lawi, Jordan, Guimaras: An application of discrete choice experiment method
    Aborka, Rio Rina B.; Gange, Gay Margaret A. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2017-06)
    To increase the population and remove the endangered status of sea turtles in Brgy. Lawi, Jordan, Guimaras, an effective and sustainable conservation program is a must. Using discrete choice experiment valuation method, this study determined the residents’ preferred conservation scheme for sea turtles in Brgy Lawi and estimated the conservation value for these creatures. A total enumeration of 204 residents was employed in the study. Improvements in listing status and the establishment of conservation facilities were the identified attributes of conserving sea turtles in the area. Results show that the establishment of conservation facilities with souvenir shop attribute level was mostly preferred. Income and age significantly affect the choice of the residents for improvements in a conservation scheme. Also, results show that the residents have positive attitudes towards conserving sea turtles and are willing to pay for it. The inclusion of an eco-tourism scheme, such as the addition of a souvenir shop that would open opportunities and generate income while still promoting the protection and conservation of sea turtles in the area is thus recommended. For further studies, the research recommended to include more attributes that could capture a wider scope of characteristic from the resource or good being valued.
  • Thumbnail Image
    Item
    Fish farming and the fish community: The case of Victorias, Negros Occidental
    Apawan, Maylanie D. (Division of Social Sciences, College of Arts and Sciences, University of the Philippines Visayas, 2001-04)
    The rapid expansion of aquaculture in the past decades has brought about some economic benefits, but it has also resulted in various social and environmental problems. This observation points to the need to look at aquaculture development beyond conventional measures emphasizing economic benefits; there is a need to focus on the interplay of social, economic, and environmental factors in looking at aquaculture development. This study looks at the social, economic, and environmental impacts of aquaculture on small fishers in three coastal villages in Victorias, Negros Occidental and examines the responses of small and subsistence fisherfolk to the growth and proliferation of fish farming. The study points out the social and environmental issues usually arise as a consequence of conflicts between fish farmers and small fishers in the use of land and water and also because of the effluent charge and chemical residues coming from fishpond operations. When contextualized within a larger set of social and ecological issues, these conflicts have wider implications, especially when these involve unequal distribution of costs and benefits among different stakeholders.