Alkershi, Akram. K.M. Contribution of size fractions of planktonic algae to primary organic productivity in the coastal waters of cochin south west coast of India - Kochi Dept. of Marine Science - CUSAT 2002 - 133p. Thesis (Ph.D), CUSAT, 2002 Subjects--Index Terms: Marine plants, Algae Plankton Joseph. K.J. Universal Decimal Class. No.: 639.64:574.583 / AKR