Sterols of the lobster (Homarus americanus) and the shrimp (Pandalus borealis)

Summary In this study we have analyzed the sterol compositions of two continental shelf species of crustacea, the lobster (Homarus americanus) and the shrimp (Pandalus borealis). Cholesterol was found to be the most abundant sterol in these two species with smaller amounts of desmosterol, 24-methylcholesterol, 24-ethylcholesterol, 24-methylenecholesterol and 22-dehydrocholesterol. Woods Hole Oceanographic Institution Contribution Number 3494. This work was supported by the Office of Sea Grant of the National Oceanic and Atmospheric Administration, U.S. Department of Commerce. Special thanks are extended to Ms.R. Beebe-Center, who was responsible for a large part of the isolation work described here.