We thank everybody who contributed by any means to this project.
Without the generous financial support of the sponsors Balair, Neckermann
and ScubaPro, the present survey could never have been accomplished. We
also thank the resort management and particularly the manager Mr. Mabout
and Gabi for the kind and generous hospitality. Many thanks go to the leader
of the Subaqua dive base, Jochen Gommers, and his team, Alex, Zissi and
Thomas, for their generous support concerning manpower and material even
under the rather unpleasent conditions.
Figure 6: From left to right: the leader of the dive base Jochen Gommers, the dive masters and instructors Thomas, Zissi, Alex and Gabi from the management.