000			02586nam a22001817a 4500
003			OSt
005			20211210085421.0
008			211210b |||||||| |||| 00| 0 eng d
040			_aMMSU _cULS
100			_aCristobal, William S.
245			_aBiodiversity assessment of vertebrates in different tributaries of Paosan River, Dingras , Ilocos Norte / _cWilliam S. Cristobal and Joy Genedine C. Silvano
260			_c2021
300			_axvi, 46 leaves _c28 cm.
500			_aThesis (BS Env’l Sci) – Mariano Marcos State University
504			_aBibliography: leaves 30-31.
520			_a ABSTRACT CRISTOBAL, WILLIAM S. and SILVANO, JOY GENEDINE C., 2021. Biodiversity Assessment of Vertebrates in Different Tributaries of Padsan River, Dingras, Ilocos Norte. Undergraduate thesis. College of Agriculture, Food and Sustainable Development. Mariano Marcos State University, City of Batac, Ilocos Norte 2906. 46pp Adviser, Mr. Elmer Francis A. Morales This study was conducted at different tributaries of Padsan River namely; Station I at Barangay San Marcos, Station 2 at Barangay Medina, Station 3 at Barangay Albano, and Station 4 at Barangay Guerrero from January to February 2021. It aimed to: 1) determine the physico-chemical parameters of the river; 2) determine and document the species diversity of vertebrates caught in the river; 3) determine and document the anthropogenic activities in the different stations, and 4) correlate the physico-chemical parameters to the species diversity of vertebrates in the river. The observational research design was used in the study. This method was used to determine the physico-chemical characteristics and the Fish Aggregating Devices with 4 x 4m size was established in different stations to determine the species in the area. The result of the study showed that physico-chemical parameters had no significant relationship among water quality parameters. But temperature had negative significant relationship to the species diversity at 5% level. A total of eight species caught during the two-sampling period namely, Tilapia (Oreochromis niloticus): Cat fish (Clarias macrocephalus); Goby Fish (Valencienna Avers 1: Mullet (Magilidae): Fel (Anguilla luconensis); Goby fish (Valencienne longis 2). Mud fish (Neochanna); and Croker (Micropterus salmondes). Station 4 is the highest diversity index with a mean of 1.32. The most diverse and warmest temperature among all sampling stations Between the two-sampling periods. The first sampling period has the higher diversity index than the second.
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