Total lipid contents and fatty acid composition of 13 marine fish species namely, "jenahak" (Lutianus agentimaculatus), "kebasi" (Anadontostoma chacunda), "duri" (Arius cumatranus), "tenggiri batang" (Scomberomorus commersoni), "kembong" (Rastrelliger kanagurta), "kintan" or "sebalah" (Psettodes crumei), "kerisi" (Pristipomodes typus), "kerapu" (Epinephelus sexfasciatus), "gelama kling" (Sciaena dussumieri), "malong" (Congresax talabon), "laban" (Cynoglossus lingua), "yu 9" (Scolidon

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... and "bagi" (Aacnthurs nigrosis) commonly found in Pulau Tuba, one of the islands surrounding the popular tourist destination Langkawi in Malaysia were determined. All fish showed a considerable amount of unsaturated fatty acids particularly those with 4, 5 and 6 double bonds. Two physiologically important n-3 polyunsaturated fatty acids (PUFAs), i.e. eicosapentaenoic acid (EPA) and docasahaexaenoic acid (DHA), made up of more than 50% of the total PUFAs. For saturated fatty acids, palmitic was found to be the major one in all types of fish studied. Based on DHA, EPA and arachidonic acid (AA) contents, "gelama kling" was found to be the best source (23, 11 and 7%, respectively) followed by "kerapu" (21, 10, 9%) and "sebalah" (19, 14, 4%).