Fatty acid biomarkers to indicate organic food source of mudskipper species Boloepthalmus boddarti and Periopthalmus gracillis in Setiu Wetlands

Abstract

Study of fatty acid biomarker was done in order to investigate the organic food source of Mudskipper species, Boleopthalmus boddarti and Periopthalmus gracillis in Setiu Wetlands. Both species are dominant species of mudskipper in Setiu Wetlands. Analysis was done to find and compare both species organic food source and sediment with fatty acids markers Data obtain shows that B. boddarti (0.077 g g- 1 dry wt.) has the highest total lipid content, followed by P. gracillis (0.057 g g- 1 dry wt.). Sediment has the least total lipid content (0.009 g g- 1 dry wt.). In P. gracillis tissues, 15 F As component found and in B. boddarti tissues there 18 component of F As. In fatty acid composition, SAFA (saturated fatty acid) are the mainly fatty acid found in tissues 1 3.503 g g- dry wt. in P. gracillis, 2.168 g g- 1 dry wt. in B. boddarti and sediment samples 1.866 g g-1 dry wt. MUFA (monounsaturated fatty acid) also occur in high 1 level content with 1.140 g g- dry wt. in P. gracillis , 0.950 g i 1 dry wt. in B. boddarti and 0.278 g g- 1 dry wt. in sediment. PUFA (polyunsaturated fatty acid) is the least fatty acid classes found with only 0.012 g g- 1 dry wt. in P. gracillis, 0.102 g 1 g- dry wt. in B. boddarti and 0.184 g g- 1 dry wt. in sediment.