000			01652nam a2200205 4500
001			UPMIN-00000009220
005			20220921140844.0
040			_aDLC _cDLC _d upmin
041			_aeng
090			_aLG993.5 2002 _bB4 M44
100	1		_aMedillo, Achim V.
245	0	0	_aA preliminary study on selected morphological and histological features of Uca sp. (fiddler crab) in mangrove areas of Tambo and San Isidro, Samal Island / _cAchim V. Medillo
502			_aThesis (BS Biology) -- University of the Philippines Mindanao, 2002
300			_a49 leaves
260			_c2002
520			_aFiddler crab (Uca sp.) collected from areas near and away from an industrial zone were examined. Gross morphological examination of the carapace color, carapace integrity and gill color showed no, significant differences between the crabs in the two areas. However, gill lamellae were significantly shorter and lamellae fold membrane significantly thicker in the Brgy. Tambo samples than those in San Isidro. These differences can be necessary adaptations of the crustacean to certain stressors found in the area proximal to an industrial zone. Shorter gill lamellae enable faster gas exchange between respiratory structures and metabolic tissues or organs. On the other hand, thicker lamellae fold membrane is considered a defense mechanism against harmful substances in polluted a defense mechanism against harmful substance in polluted waters. The findings may suggest that Uca sp. can be potential biological indicator in evaluating the quality of the mangrove ecosystems in Davao Gulf
658			_aUndergraduate Thesis _cBIO200, _2BSB
905			_aFi
905			_aUP
999			_c275 _d275