This is the first full directory of the Network of Tropical Aquaculture Scientists (NTAS) published since the Network was established in 1987. The contents of this directory were culled from the responses of a questionnaire which was sent out to 579 members in April 1992. This directory comprises a list of those questionnaire respondents who wish to continue their membership plus newly enrolled members up to 30 May 1993. It also includes a detailed description of research interests, based on 90 descriptors provided in the questionnaire plus 15 descriptors given by members.