Cape Town Invasives News

On-going efforts bear fruit

On-going efforts bear fruit

The Kader Asmal aquatic weed control and river clean-up programme on the Black River started in February 2012. The initial phase of the programme was to remove the dense water hyacinth infestation. About 80% of the Black River was covered with dense water hyacinth mats, preventing the water from flowing and light from penetrating the water column. The river was divided into six reaches and floating booms separated the reaches. It took three teams, a total of 40 workers, four months of intensive labour to manually remove the water hyacinth. A long-boom excavator was used in one of the reaches and a team of workers made sure that the water hyacinth plants, that were left behind were removed. Since February 2012, evidence of the hard work could be seen in flamingos returning to the river and paddlers on their way to the end point of the Peninsula Paddle. During this winter’s heavy rains the Black River flowed freely and no damage was caused as a result of flooding.