Karthikeyan P Competitive Interactions of Hydrogen and Aluminium Ions in Modifying Trace Metal Availability to An Estuarine Clam - - Kochi School of Marine Science, CUSAT 1995 - 180 p. Guideline ; Jacob Chacko ISBN: ISSN: Subjects--Index Terms: Oceanography - Fisheries Dewey Class. No.: 551.468.6(282.253C)