abstract
This paper summarizes South Africa’s participation in SIBEX II in the south Indian Ocean (48 - 64°E) during February – March 1985. The two basic objectives of the cruise were to provide a temporal comparison of oceanology in the region with earlier results from an Australian survey and to undertake meso/fine-scale studies of various processed associated with krill (Euphausia superba) swarm dynamics. Unfortunately, survey work had to be permanently curtailed as a result of rudder damage to the ship concerned (the R/S Africana). A review of data collected is given and an attempt is made at their interpretation.