Figure F30. Productivity indices based on benthic foraminifers at Site 1084 and at two Walvis group sites. A. Number of tests counted for determination of species assemblage. B. Diversity of assemblages, calculated as 1/dominance and expressed as a logarithm. C. Sum percentage of the taxa Bolivina, Bulimina, Globobulimina, and Praeglobobulimina. All counts are by Otto Hermelin (Shipboard Scientific Party, 1998g, 1998h, 1998j). hi div evts = high-diversity events, lo div intv = low-diversity interval, hi prod. = high productivity.