Lipids and fatty acids from Ulva intestinalis from estuaries of the Caspian basin (Elton Region)

The fatty-acid composition of total lipids from eurybiotic species of green alga Ulva intestinalis from saltwater and estuaries of the Caspian arid zone basin (Elton Region) was studied. It was shown that the relative content of trienoic acids increased and the relative content of long-chain acids decreased as the salinity of the water increased. A feature of the phospholipid composition of U. intestinalis estuary populations was the presence of phosphatidylcholine in plants growing in water with salinity 10.0–11.6 g/L and its absence in algae at higher salinities (28.5–31.2 g/L).