POTENTIAL OF ENDEMIC AND NATIVE FISH FROM MANINJAU LAKE, WEST SUMATRA, INDONESIA AS A NUTRITIONAL SOURCEDjamhuriyah S. Said, Novi Mayasari and Tjandra Chrismadha
Lake Maninjau, West Sumatra, Indonesia is one of the 15 nationally priority lakes and has an economic and ecological function i.e., a habitat of biodiversity such as several native fish species. However, the lakeâs status is hypertrophic, that is influence to the biodiversity of the lake. Some of the native fish species in the lake that are used by the surrounding community as nutritional resources and economic reasons. That are Asang (Osteochilus vittatus), Bada (Rasbora maninjau), Rinuak (Gobiopterus brachypterus), and Supareh (Barbodes binotatus). A study to determine the nutritional content and amino acids of these fish has been conducted in July 2018 and June 2019. Proximate and amino acid analysis were carried out at Bogor Agricultural University (IPB) Laboratory. The results showed that the protein content of Asang, Bada, Rinuak, and Supareh were 50.23; 60.13; 62.38; and 54.23 % dry weight and the fat content of each fish were 21.08; 14.03; 8.44; and 10.01% dry weight respectively, while the number of amino acids in a row is 15.85; 13.50; 14.18% and 15.17% w/w. The Total Essential Amino Acid (TEAA) were 6.67; 5.72; 8.46 and 6.40% w/w which is equivalent to 42.08; 42.37; 59.66 and 42.19% of the total amino acids examined. Total Non-Essential Amino Acid (TNEAA) were 9.18; 7.78; 5.72 and 8.77 % w/w which is equivalent to 57.92; 57.63; 40.34 and 57.81% of the total amino acids. These results indicate that all of the fish have a high nutritional value. The existence of these fish are essential in meeting the dietary needs of the community and helping the economy. Therefore, its presence in its natural habitat (Lake Maninjau) needs to be maintained.