Comparison of Fatty Acid Compositions in Birds Feeding in Aquatic and Terrestrial Ecosystems
M. I. GLADYSHEV1,2, O. N. POPOVA3, O. N. MAKHUTOVA1, T. D. ZINCHENKO4, L. V. GOLOVATYUK4, Yu. A. YURCHENKO3, G. S. KALACHEVA1, A. V. KRYLOV5, N. N. SUSHCHIK1,2
1Institute of Biophysics, SB RAS, 660036, Krasnoyarsk, Akademgorodok, 50/50
2Siberian Federal University, 660041, Krasnoyarsk, Svobodny ave., 79
3Institute of Systematics and Ecology of Animals, SB RAS, 630091, Novosibirsk, Frunze str., 11
4Institute of Ecology of the Volga River Basin, RAS, 445003, Togliatti, Komzinа str., 10
5I. D. Papаnin Institute for Biology of Inland Waters, RAS, 152742, Yaroslavl Oblast, Borok
Keywords: полиненасыщенные жирные кислоты, птицы, водные экосистемы, наземные экосистемы, polyunsaturated fatty acids, birds, aquatic ecosystems, terrestrial ecosystems
Abstract
Fatty acid (FA) contents and compositions in pectoral muscles of 18 species of birds from Novosibirsk, Volgograd, and Yaroslavl oblasts were studied. Three groups of birds that had significantly different FA compositions were distinguished based on multivariate statistical analysis: Passeriformes, Columbiformes, and a group of waterfowl and waterbird species (Charadriiformes, Anseriformes, Podicipediformes, and Ciconiiformes). The highest content of physiologically important docosahexaenoic fatty acid (22:6 n- 3, DHA), which is considered as a marker of aquatic food, was surprisingly found in the biomass of Passeriformes which are terrestrial feeders, rather than in the biomass of waterfowls and waterbirds. It was suggested that Passeriformes species have an ability to synthesize large quantities of DHA from short-chain -3 fatty acids, which is rare among animals.
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