000			03110ntm a2200277 i 4500
003			OSt
005			20231021150021.0
007			ta
008			230822s2019 |||a|||| bm|| 00| 0 eng d
040			_aTUPM _beng _cTUPM _erda
050			_aBTH GF 41 _bN47 2019
100	1		_aNeric, Christian O.
245	1	0	_aWater quality, freshwater mollusks and fish fauna in Morong Riverine Ecosystem, Rizal Province, Philippines / _cChristian O. Neric, Nerika Jane DJ. Serrano.
264			_aManila : _bTechnological University of the Philippines, _c2019.
300			_axi, 117 pages : _billustrations ; _c28 cm. + _e1 CD-ROM (4 3/4 in.)
500			_aThesis (Undergraduate)
502			_aCollege of Science -- _bBachelor of Science in Environmental Science, _cTechnological University of the Philippines, _d2022.
504			_aIncludes bibliographical references.
520	3		_aThe study focused on the water quality and the abundance of freshwater mollusk and fish fauna in Morong Riverine Ecosystem in the Province of Rizal. Five sampling periods from the months of April to August 2018 were considered. The anthropogenic activities and perception of the locals in the protection and conservation of the river were also studied. Human-induced activities includes fishing, agriculture and irrigations. The physico-chemical parameters such as temperature, pH, turbidity, dissolved oxygen, conductivity, salinity, resistivity, nitrates and phosphates were measured. The results showed that the physical, chemical and biological condition of Morong River did not conform to the DEN Standards for Class C waters Fresh Surface Waters while pH passed the standard. Freshwater mollusks identified are Semisulcospira sp., Pomacea sp., Filopaludina martensi sp., Mercenaria sp., and Unio sp. The most abundant freshwater mollusk was Semisulcospira sp. (Suso) and has the highest species importance value (2129). The least abundant freshwater mollusk was Unio sp. which has the lowest species importance value (2.653). Pearson r correlation showed that all the parameters have no significant relationship with abundance of freshwater mollusk. The Fish fauna collected were Oreochromis sp., Pterygoplichthys sp., Glossogobius sp., and Siluriformes sp. The most abundant fish species was Pterygoplichthys sp., (Janitor Fish) and has the highest species importance value (139.0). The least abundant species were Glossogobius sp., and Siluriformes sp. which has the lowest species importance value (1.030). Statistical relationship showed that, depth (r=-,655, p=.040), and total coliform (r- .690, p-.027) has a significant relationship with fish diversity, other parameters have no significant on fish diversity. Protection of morong riverine ecosystem should be maintained to conserve its freshwater mollusks and fish fauna present in the river.--Author's Abstract
650			_aWater quality _zMorong, Rizal Province, Philippines
650			_aMollusks _zGeographical distribution
650			_aFishes _xEcology
650			_aMorong, Rizal Province, Philippines.
700	1		_aSerrano, Nerika Jane DJ.
942			_2lcc _cBTH COS _n0
999			_c28077 _d28077