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Table J33: Actions and environmental effects of water projects (according to the
environmental criteria of the International Commission on Large Dams)
(continued).
6. Other:
Characteristics of actions Environmental effects
.
6. Influence on land and water fauna:
• Land fauna
Mammals
Birds
Insects
Reptiles and amphibians
• Water fauna
Economic fish species
Other fish species
Zooplankton
Invertebrates
Microorganisms
Scarce and endangered species
Source: After Anonymous, 1986. Management of the Water Resources of the
Republic of South Africa. Department of Water Affairs. Pretoria. various
pages.
See also: lil Little. T., 1994. Economics and water management: booklet on the
application of economic principles to water management. INR
Monograph No. 12. Institute of Natural Resources. University of
Natal. Pietermaritzburg. 24 p.
Note:
(ii) Mirrilees. R. and Forster, S., 1993. Environmental resource
economics - managing South Africa's environmental resources: a
possible new approach, Department of Environment Affairs. Pretoria.
32 p.
(Hi) Stewart, T.J., Scott, L. and 1I0ni, K., 1993. Scenario based
multicriteria policy planning for water management in South Africa,
WRC Report No. 296/1/93, Water Research Commission. Pretoria.
59 p. + app.
Reservoir-induced earth tremors or earthquakes (and associated landslides),
may be problematic in certain parts of the world (due to pressure exerted
by the great volume of water - detailed seismic risk assessments
notwitHstanding). Data on earth tremors and earthquakes in southern Africa
can be found in annual reports published by the Department of Mineral and
Energy Affairs (Geological Survey, now the Council for Geoscience), Private
Bag X112, Pretoria, 0001. See for example: Graham, G., Brandt, M.B.C.,
Ford, M., Saunders, I. and Brink, L., 1995. Catalogue of earthquakes in
southern Africa and surrounding oceans for 1991 , Seismologic Series of the
Geological Survey No. 26, Council for Geoscience, Pretoria. 22 p. Note that
the first such report (with a slightly different title), was issued in 1969. The
current title was assumed in 1974 (Report No. 6).