The effects of age and individual size on the Fatty Acids and Elemental Composition of Nemipterus Randalli Russell, 1986 from Mersin Bay, Turkey

Authors : Necla GÖÇMEN, Selmin ÖZER, Deniz AYAS

Pages : 100-113

Doi:/medfar.v1i39443.428833

View : 14 | Download : 18

Publication Date : 2018-09-28

Article Type : Research Paper

Abstract :In this study, the effects of the age and individual size on total lipid content, fatty acids and elemental composition of Nemipterus randalli caught from the Mersin Bay were determined. The lipid content of all age groups was found at similar levels. However, the highest lipid level was determined in the 3+ age group insert ignore into journalissuearticles values(2.85%); while the lowest level was found in the 2+ age group insert ignore into journalissuearticles values(2.75%);. Dominant fatty acids for each age group of N. randalli are palmitic acid insert ignore into journalissuearticles values(c16: 0);, stearic acid insert ignore into journalissuearticles values(c18: 0);, oleic acid insert ignore into journalissuearticles values(c18: 1);, cetoleic acid insert ignore into journalissuearticles values(C22: 1 n11);, eicosapentaenoic acid insert ignore into journalissuearticles values(EPA, C20: 5 n3);, and docosahexaenoic acid insert ignore into journalissuearticles values(DHA, C22: 6 n3);. The highest palmitic acid level was found in 3+ age group insert ignore into journalissuearticles values(20.45%); whereas the highest stearic acid level was found in the 2+ age group insert ignore into journalissuearticles values(15.00%);. The highest oleic acid level was observed in the 3+ age group insert ignore into journalissuearticles values(6.47%); while the highest level of the cetoleic acid was observed in the 2+ age group insert ignore into journalissuearticles values(7.13%);. The highest EPA and DHA were found to be 5.49% and 22.02% in the 1+ age group. Macro elements insert ignore into journalissuearticles values(Na, Mg, P, K);, trace elements insert ignore into journalissuearticles values(Cu, Zn, Fe); and potentially toxic metals insert ignore into journalissuearticles values(Cd, Cr, Pb, As); were investigated in muscle tissue and the levels of Cr, Cu, Cd and Pb were not evaluated since their levels were below the detection limit of the device insert ignore into journalissuearticles values(ICP-MS);. Element level of muscle tissue was changed according to different age groups as K>P>Na>Mg>Ca>Fe>As>Zn, respectively. For 1+ age group Na: 2685.1, Mg: 974.3, P: 11492.0, K: 24557.0, Ca: 348.6, Fe: 27.6, Zn: 8.4, As: 44.6 insert ignore into journalissuearticles values(μg g-1dw);. For the 2+ age group Na: 4959.7, Mg: 1146.9, P: 11362.0, K: 21342.0, Ca: 725.5, Fe: 41.7, Zn: 10.3, As: 39.5 insert ignore into journalissuearticles values(μg g-1dw);. For the 3+ age group Na: 7758.8, Mg: 1539.8, P: 11283.0, K: 19567.0, Ca: 1194.7, Fe: 53.3, Zn: 9.2, As: 275.0 insert ignore into journalissuearticles values(μg g-1dw);.
Keywords : Mersin Bay, Nemipterus randalli, Age, Lipid, Fatty acids