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Wise Coastal Practices for Sustainable Human Development Forum
Posted By: Michael J. Risk
Date: Wednesday, 7 June 2000, at 11:05 a.m.
In Response To: Conservation and Tourism: we will be honoured to accept. (Sibylle Riedmiller)
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I respond to Ms. Sybille Riedmiller's contribution on Chumbe Island, Tanzania/Zanzibar.
Those who are interested in the ecological status of the reefs off Zanzibar in general, and Chumbe in particular, should consult several papers in the scientific literature. I am travelling now, and do not have access to a library, but here are leads to several relevant papers:
Risk et al., in the Ginsburg-edited Health Hazards and History volume on coral reefs of the world, 1995 or thereabouts.
Heikoop et al., L&O 1999.
Dunn, J. J. 1996. Status of the reefs of Zanzibar. MSc thesis, McMaster Univ.
As these references make clear, the reefs off Zanzibar are shallow Holocene veneers, never really well-developed, which are already under serious threat from land-based sewage sources.
I worked on the reefs of Chumbe Island for several years. In my professional opinion, there should be no tourism developments on that island, of any sort, for any reason.
Mr. Michael J. Risk Biology and Geology Department, McMaster University.
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