River Basin

Agriculutre runoff can impact water quality.

Discarded barrels that were used to contain Persistent Organic Pollutants (POPs) can become a source of contamination.

Mine tailings south of Johannesburg; although often carefully managed degrade over time, releasing acid and radioactive particles into the air and nearby watercourses.

Oxide precipitation facility at Emalahleni, South Africa.

Members of the eMalahleni Water Reclamation Plant Public-Private-Partnership consortium, present at the signing of the cooperation agreement.

Irrigation in the Kalahari relies on groundwater.

Look-up table for fitness- for-use of water.

Orange River at Upington.

The Orange-Senqu River basin is home to a unique array of biodiversity.

The Khubelu River in Lesotho.

The Carbon cycle.

The Senqu River, Lesotho.

The Orange River Mouth, a designated Ramsar wetland.

Despite the significant pressures from developments in the basin, the rivers of the Orange-Senqu River system host rich aquatic communities.

All birds, including this Cape Cormorant, are heterotrophs because they cannot harness the sun's energy.

An example of a food web (FPOM= Fine Particulate Organic Matter).

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.

African Fish Eagle.

Small Mouth Yellowfish (Rubber Lips).

Trypanosoma sp.- the protozoa responsible for African Sleeping Sickness.