The experimental phase of the studies was supported by the German Federal Ministry for Science and Technology which provided the Centre for Marine Tropical Ecology (ZMT) with the means to charter the vessel for the expedition. The assistance of the captain and his officers and crew of R/V P. Kottzov during the cruise is well recognized.
The field work and contributions of the following are acknowledged. Ashley Johnson, Sea Fisheries Research Institute in Cape Town; Christo Whittle, University of Cape Town; Chris Bartholomae, Aina Iita; Anja Risser, National Marine Information and Research Centre in Swakopmund; and Quilinda Fidel and Bomba Bazik Sangolay, Institute de Investigacao Pesqueira in Luanda.
Siegfried Krüger implemented the CTD systems on R/V P. Kottzov for both profiling and towing and kept them running during the cruise. Dietmar Ruess worked laboriously on implementation, calibration, programming, and performing the validation of the towed ADCP measurements. Toralf Heene carried the major load of the CTD data visualization. Birgit Sadkowiak processed the oxygen content of water samples.
Satellite images of SST were kindly provided in an online mode by Scarla Weeks of University of Cape Town. Chris Finch of JPL generously provided the NSCAT data in ASCII format.
We are grateful for the comments and suggestions of V. Shannon and an anonymous referee. V. Mohrholz was supported by the Deutsche Forschungsgemeinschaft (DFG), Grant Nr. LA 1137 1-1.
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