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A Micro-Analytical Scheme for the Determination of Protein, Carbohydrate, Lipid and RNA Levels in Marine Invertebrate Larvae

A micro-analytical scheme for the determination of protein, total carbohydrate, freereducing substances, total lipid, phospholipid and RNA levels in marine invertebrate larvae is described and discussed. The scheme is designed for use with 1–2 mg dry weight of tissue. Values of 171·0, 15·03, 50·4 and 11·58 μg/mg dry weight of larvae (flesh + shell) are given for the levels of protein, total carbohydrate, total lipid and RNA respectively, in newly released larvae of Ostrea edulis L.