Arrangements have been made with Kluwer Academic Publishers, The Netherlands, to publish refereed publication covering invited as well as contributed papers including posters. All papers submitted will be peer reviewed by at least two referees and the editors. It is essential to restrict the number of pages (free of charge) for each contributor, as described below:

Invited Keynote papers: 15 printed pages, Invited papers: 10 printed pages (8.5" x 11"). Contributed papers: 6 printed pages (8.5" x 11").

Authors exceeding the above page limit will have to pay $50.00 (U.S.) per page to the Society. Please submit your manuscript before September 30, 1990 to Dr. M. Munawar, Symposium Chair/Editor. The instructions for the preparation of the manuscript will be made available during the Symposium. In case you need instructions earlier, please refer to Hydrobiologia 173: 243-262, 1989 for details.