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The Garden Route National Park says the cause of a red-brown discoloration of the water in the Knysna estuary will be determined through analysis of water samples.
Spokesperson, Nandi Mgwa-dlamba, says reddish-brown currents were identified in the Knysna estuary at Leisure Isle, Lake Pleasant at Sedgefield, Lake Brenton, and at the
Heads over the weekend.
She says retired marine and aquatic scientist, professor Brian Allanson, believed the change in water colour could be attributed either to decreased salinity or red tide.
Mgwadlamba says Knysna marine rangers collected samples from various points in the estuary and these would be analysed to determine the cause of the water discoloration.
