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Image Gallery

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Salt can accumulate on the surface as a crust, or in soil, when evapotranspiration exceeds precipitation.
Source: Reed 2009
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Hardness can damage pipes and fittings.
Source: DRFN 2009.
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Nutrient enrichment can promote algal growth.
Source: Vogel 2010
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Effluent from metal mines must be contained in hydrologically isolated waterbodies.
Source: Vogel 2005
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Discarded barrels that were used to contain Persistent Organic Pollutants (POPs) can become a source of contamination.
Source: ŠiStockphoto/Urbanija 2006
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Dams can alter the naturally occurring temperature regimes.
Source: ARA-SUL 2008
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Tributary of the Upper Olifants Catchment - heavily impacted by industrial effluent.
Source: CSIR 2010
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Source: DWA South Africa 2009
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A woman collects water in Inyankuni, Zimbabwe.
Source: Schaefer 2010
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The Mashatu Tree, Mashatu Game Reserve, Botswana.
Source: Hatfield 2010
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A Lilac Breasted Roller.
Source: Hatfield 2010
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The Bojele River, Botswana.
Source: Hatfield 2010
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All organisms need water, energy, carbon, and nutrients, and most require oxygen to live, grow and reproduce.
Source: Hatfield 2010
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The Limpopo River, at Pontdrif - Botswana/South Africa border.
Source: Hatfield 2010
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Aquatic ecosystems support a wide diversity of life.
Source: Hatfield 2010
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An example of a food web (FPOM= Fine Particulate Organic Matter).
Source: Hatfield 2007
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This figure illustrates energy flows related to the accumulation of biomass in an individual animal. Energy is obtained through food, while energy is consumed or lost in metabolic processes (i.e., respiration) and the excretion of wastes.
Source: NTEAP 2007
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Nile Crocodile, an example of a vertebrate predator.
Source: McCans 2006
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Trypanosoma sp.- the protozoa responsible for African Sleeping Sickness.
Source: Centre for Disease Control 2006
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Water Hyacinth.
Source: Nile RAK 2007
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