000			02709nam a22002657a 4500
003			OSt
005			20240921155150.0
008			240921s2019 ph ||||| abm| 00| 0 eng d
040			_aTUPM _beng _cTUPM _erda
050			_aBTH GF 41` _bG37 2019
100			_aGarcia, Lyra Marie B.
245			_aWater Quality, Habitat, and Food preference of Duhol (Hydrophis semperi, Garman 1881) in Morong River, Rizal Philippines / _cLyra Marie B. Garcia, James Leister C. Ventura.
264			_aManila : _bTechnological University of the Philippines, _c2019.
300			_a86 pages : _billustrations ; _c28 cm. + _e1 CD-ROM (4 3/4 in.).
336			_2rdacontent _atext
337			_2rdamedia _aunmediated
338			_2rdacarrier _avolume
500			_aThesis (Undergraduate)
502			_aCollege of Science -- _bBachelor of Science in Environmental Science, _cTechnological University of the Philippines, _d2019.
504			_aIncludes bibliographical references and index.
520	3		_a"The study focused on the water quality, habitat and food preferences of Duhol (Hydrophis semperi) during the months of April to August 2018. The physico-chemical and biological properties of water was determined in terms of temperature, turbidity, total dissolved solids, salinity, conductivity, resistivity, dissolved oxygen, pH. Phosphate, nitrate, and coliform count. Composite sampling was used in the collection of Duhol. Survey and interview were administered to the respondents to determine their anthropogenic activities and their perception on the protection and conservation of the river. Based on the findings, the most common anthropogenic activities near the river are excreting domestic waste, fishing and aquaculture practices. Results of physic-chemical properties of water showed that the dissolved oxygenn and nitrate were low during the five months sampling period, while phosphate were relatively high and exceeded the standard set by the DENR for class C waters. Total coliform count was high in all months which shows that the water of poor quality. A total of 89 Duhol were caught during the five months sampling period. The abundance of Duhol is highly correlated with dissolved oxygen (r=0.708) and turbidity (r=0.74) while, temperature, nitrates, salinity, conductivity, resistivity and total dissolved solids have a very low correlation and total coliform have a slight correlation followed by the phosphate with a moderate correlation. Conservation efforts must focus on protecting Morong Riverine ecosystem to guarantee the continuous existence of Duhol species in the area." -- Author's Abstract
700			_aVentura, James Leister C.
942			_2lcc _cBTH COS _n0
999			_c28930 _d28930