abstract
On two surface sections between southern Africa and the Prince Edward Islands during April and May 1987, three of the four surface fronts south of Africa were detected by surface nutrient and temperature measurements. The Agulhas Front and Subtropical Convergence were found to be within their historical limits, while the Subantarctic Front was found north of its historical limit and moved south during the cruise. The presence of the latter front may have been detected at the Prince Edward Islands.