Systematic Evaluation of Fatty Acid Profiles in Hydrachna processifera, Eylais setosaand Hydrodroma despiciens (Acari, Hydrachnidia) Species by GC-MS Method

Abstract

This study was carried out with Hydrachna processifera (Acari, Hydracnidia), Eylais setosa and Hydrodroma despiciens common in lakes. Fatty acid ratios were evaluated comparatively in terms of species. For this purpose, these species collected from the Karamık lake (AfyonkarahisarTurkey) were analyzed by GC-MS gas chromatography in the laboratory. In the results of the analysis, saturated fatty acids such as myristic (C14:0), palmitic (C16:0), heptadecanoic (C17:0), and stearic acid (C18:0) were observed in high amount. There was a significant difference between species in terms of total saturated fatty acid ratios. The monounsaturated fatty acids palmitoleic (C16:1), oleic (C18:1), and erucic (C22:1) are the most common acids. The major polyunsaturated fatty acids were linolenic (C18:3), eicosatrienoic (C20:3), eicosapentaenoic (C20:5) and docosahexaenoic (C22:6) acid, linoleic (C18:2), gamma-linolenic 3), eicosadienoic (C20:2) and arachidonic (C20:4) acids. At the end of the study, there were considerable differences between the species studied in terms of monounsaturated and polyunsaturated fatty acids in these water mite species. This study also found that the fatty acid composition was different for each species and this is important for the molecular taxonomy of water mites.