Seasonal changes in fatty acid profiles of economically important fish species from Arabian Gulf and Shatt Al-Arab River

Sumaya  Haider; Abbas Hantoush; Firas Alkatib

Authors

Sumaya Haider Basrah Governorate Agriculture Directorate
Abbas Hantoush Chemistry and marine pollution, Marine Science Center, University of Basrah https://orcid.org/0000-0002-2957-2825
Firas Alkatib Department of Ecology, College of Science, University of Basrah https://orcid.org/0000-0001-6989-6376

Keywords:

Fatty acids, GC-MS, Marine fishes, Freshwater fishes, Omega-3, Northwest Arabian Gulf, Shatt Al-Arab River

Abstract

The present investigation aimed to compare fatty acid levels in three species of fish muscle from the Shatt Al-Arab river (Cyprinus carpio, Oreochromis aureus, Planiliza abu) with three species from the Arabian Gulf (Pampus argenteus, Epinephelus coioides, Otolithes ruber). Fat content was extracted by organic solvent extraction, and fatty acids were estimated using Gas Chromatography/Mass Spectrometry (GC-MS) (Calculated from the total amount of fatty acids) for the period from August 2018 to May 2019. The proportion of saturated fatty acids (SFA) ranged from 56.967% in P. argenteus during winter to 23.783% in C. carpio during spring. The percentage of monounsaturated fatty acids (MUFA) ranged from 50.771% in C. carpio during winter to 12.908% in O. aureus during winter. The ratio of polyunsaturated fatty acids (PUFA) ranged from 31.777% in O. aureus during spring to 2.608% in C. carpio during autumn. Also, omega-3, EPA, and DHA were identified for fish species and were found to be higher in marine species compared to freshwater fish.

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