Biochemical Studies on Marine Zooplankton V. The Composition of the Major Biochemical Fractions inNeomysis Integer

The earlier investigations (Raymont, Austin & Linford, 1964, 1966) on the brackish-water, semi-planktonic mysid,Neomysis integer(Leach), dealt with the total protein, lipid and carbohydrate fractions, together with chitin and ash. Results showed that a relatively high protein content (mean 71 % dry weight) was typical ofNeomysis; the protein showed very little change throughout the year. Lipid was much lower and more variable (7–15%; mean 13 % dry weight), and carbohydrate was especially low (mean 2.5 % dry weight). Ash and chitin together amounted to some 14 % dry weight (Raymontet al., 1966).