000			02255nam a2200241 4500
001			UPMIN-00000014642
005			20220921142405.0
040			_aDLC _cDLC _dupmin
041			_aeng
090			_aLG993.5 2007 _bB4 C66
100	1		_aConcepcion, Lance Nathan B.
245	0	0	_aComparative study on the diet of Pterygoplichtys disjunctivus (Webber 1991) and Channa striata (Bloch 1793) in Lake Mihaba, Agusan del Sur / _cLance Nathan B. Concepcion.
502			_aThesis (BS Biology) -- University of the Philippines Mindanao, 2007
300			_a37 leaves
650			_aLake Mihaba _zAgusan del Sur, Philippines.
650			_aChana striata.
650			_aPterygoplichthys disjunctivus.
260			_c2007
520			_aThis study was conducted to compare the diet of P. disjunctivus and C. striata in Lake Mihaba, Agusan del Sur. One of the floodplain lakes in Agusan Marsh Wildlife Sanctuary. Two fishing methods were used: the gill netting method using three to five gill nets with a mesh size of 76 mm and a dimension of 10 mm x 2.5 m from top to bottom. In the hook and line method baits such as earthworms and frogs were used. A total of three to five lines were used, each with a length of 10 m and with 100 hooks. A total of 6 food items were identified in the guts of C. striata and the RI index of these food items was determined. These are the digested material (62.18), fish (18.13), arthropod (5.25), insect (2.90), nematode (3.39) and phytoplankton (5.57). the food item that were identified in the guts of P. disjunctivus were detritus matter (78.63) and phytoplankton (21.34). only phytoplankton is the common food item present in the guts of both fish species with an RI of 5.57 for C. striata and 21.34 for P. disjunctivus. Correlation between water fluctuation and feeding of phytoplankton suggests a strong linea relationship for P. disjunctivus (r=0.61) and a weak relationship for C. striata (0.05) at P=0.05. this means that P. disjunctivus feeds more on phytoplankton when they are abundant at high water making it an important food item for this fish species. Results of the RI values showed no diet overlap between C. striata and P. disjunctivus
658			_aUndergraduate Thesis _cBIO200, _2BSB
905			_aFi
905			_aUP
999			_c673 _d673