Abstract
The composition of lipids and fatty acids (FAs) in mussels Mytilus edulis exposed to various concentrations of nickel salt under reduced salinity of seawater (15‰) has been investigated. Alterations of the lipid composition in mussels in response to reduced salinity and the exposure to Ni have been observed. It is noted that changes in the content of phosphatidylserine and cholesterol and in phospholipid unsaturation in the gills and hepatopancreas of mussels under low salinity, most likely, indicate the development of pathological processes and activation of lipid peroxidation. Under normal salinity (25‰), similar changes in the lipid composition of the mussels studied have been observed at the initial stages of the experiment; however, by the end of the experiment, the phospholipid unsaturation is shown to be restored and the content of phosphatidylcholine increases.
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