The result was an explosion of cyanobacteria, which had never been prevalent in Hartbeespoort Dam prior to this. Create New Account. Carbon tax laws effective from June, Infrastructure News Round Up|27 November 2020, Infrastructure News Round Up | 20 November 2020, Infrastructure News Round Up | 23 Oct 2020, Infrastructure News Round Up | 09 October 2020, Infrastructure News Round Up | 11 September 2020, Infrastructure News Round Up | 04 September 2020, Infrastructure News Round Up | 28 August 2020, Infrastructure News Round Up | 21 August 2020, Infrastructure News Round Up | 07 August 2020. According to the Hartbeespoort Dam Rehabilitation Steering Committee, the invasive plant, which doubles in size every two weeks or so, covers 40 per cent of the dam. Because the plants will regrow at a rapid rate after winter, we will limit the reinfestation of water hyacinth by releasing more insects to maintain control. The facts are : 1) The METSI A ME programme managed by Rand Water on behalf of Department of Water and Sanitation (DWS), which was aimed at cleaning up the dam in general was suspended at the beginning of the year. Hartbeespoort Dam is a hypertrophic impoundment in South Africa, with large blooms of the potentially toxic blue-green alga Microcystis aeruginosa and an extensive anaerobic zone of up to 40% of the total volume during summer months. Hartbeespoort Dam: Oh dear! The hanging roots of the plant feathery and purplish-black in color. Any stray pieces on the dam were removed manually. With the Hartbeespoort Dam plagued by the dreaded water hyacinth we look at ways to monetise this plant in a country with high unemployment and where access to finance for entrepreneurs without existing assets or revenue is virtually nonexistent. Then blue-green Microcystis algae turned the dam into a massive bowl of pea-soup. Thereafter, the department will consider poisoning the invasive plant. Thereafter, the department will consider poisoning the invasive plant. Clearing the water hyacinth is an extremely costly endeavour, one that is being undertaken almost entirely by … There has been a long history of control of this weed including herbicide application, mechanical and manual removal and biological control. The Hartbeespoort community has come together in an effort to clean up the famous Hartebeespoort Dam. Massive growth of water hyacinth deteriorating the water quality of Hartbeespoort Dam. Accessibility Help. The Hennops River, which converges with the Hartbeespoort Dam, has also been contaminated for some time. Hartbeespoort Dam, South Africa – Mintirho Foundation, Coca-Cola Beverages South Africa’s (CCBSA) foundation, has invested R25m in Hya Matla Organics, an innovative start-up whose core business is turning water hyacinth into viable commercial products such as fertiliser and animal feed. Water hyacinth in Hartebeespoort Dam. Further nutrients are being released from lake sediments adding to the phosphate excess. First water hyacinth choked the surface. Eutrophication in the Hartbeespoort Dam has manifested itself through the excessive algae bloom and water hyacinth infestation. Hyacinths Removal Project – Hartbeespoort Dam Since April 2017 in Excess of 500 000 tons of Wet-Weight Hyacinths have been successfully removed from Hartbeespoort dam by various harvesting teams. We take our hats off to the men who gave the Hartbeespoort community something to be proud of. SA Water’s world-leading smart network technology detected over half of all water main breaks in Australia, Infrastructure News Round Up | 25 September 2020, Businesses be warned! The vast majority of Hartebeespoort dam’s surface can now be mistaken for a lush green field in that the water hyacinth has multiplied and is so dense that it no longer resembles the dam that is once was. Further nutrients are being released from lake sediments adding to the phosphate excess. “Water hyacinth in Hartbeespoort is a serious problem for us and sometimes we can’t operate,” observes Tidimalo Makhubalo, a manager and senior skipper with Harties Watersports Centre, which runs ferry boats, speedboats, jet-skis and luxury cruises for … However, there may be a way to harness these alien invaders to empower local communities and start a circular economy. Photo: NSRI Four-month-old vulture trapped in hyacinth rescued from Hartbeespoort Dam 2) As part of the programme, a barrier was in place at the bridge over the Magalies river.This kept most of the hyacinth off the dam. This is due to the large size of the dam, the rapid growth rate of the weeds, and the ongoing water quality crisis.”, Miller said it is possible that the insect populations may have declined as a result of the decrease in water hyacinth due to the effectiveness of the biological control programme. Containing selected areas of hyacinth on the dam to keep water clean, 2. Log In. The Hyacinth problem at Hartbeespoort has been linked to deterioration of water treatment infrastructure upstream of the 20 square kilometre dam, as well as the termination of a government weed clearing programme. In April 2017, it was estimated that just over 30% of the dam’s surface was covered by the plant. It prefers warmer climates and has board, thick, and glossy leaves that are 10-20 cm across. ... Water Hyacinth in the Hartbeespoort Dam … Goal: The Water Hyacinth growth is out of control. Massive growth of water hyacinth deteriorating the water quality of Hartbeespoort Dam Hartbeespoort Dam has been renowned for its poor water quality since the mid twentieth century. Invasive hyacinth plants are harvested at Hartbeespoort Dam … Hyacinths Removal Project – Hartbeespoort Dam Since April 2017 in Excess of 500 000 tons of Wet-Weight Hyacinths have been successfully removed from Hartbeespoort dam by various harvesting teams. “Since 2018, the CBC has been involved in the Hartbeespoort Dam’s water hyacinth management by sending regular shipments of biological control insects from our facility in the Eastern Cape and from smaller facilities set up in schools surrounding the dam to increase the size of the beneficial insect populations on the weeds. Hartbeespoort is the collective name of a few smaller towns situated around the Hartbeespoort Dam, including the towns of Meerhof, Ifafi, Melodie, Schoemansville and Kosmos. [12] [13] [14] The Dam suffers severe eutrophication, in 2003 resulting from high concentrations of phosphates and nitrates in the Crocodile River, the major inflow. Photo: NSRI Four-month-old vulture trapped in hyacinth rescued from Hartbeespoort Dam Water hyacinth is frequently branded as the world’s worst aquatic weed due to its invasive potential, negative impact on aquatic ecosystems, and the cost it necessitates to control it. Abstract. The NSRI rescue craft Rotary Endeavor was launched and we responded to the scene The Hartbeespoort Dam Rehabilitation Steering Committee has, during this phase of the removals, received little to no support from the Department of Water Affairs, which has given the committee until December this year to make an impact. First water hyacinth choked the surface. Log In. However, the reality is that hazardous waste is an everyday thing | http://ow.ly/lFOH50CHvAD. Short facts: -Shape of the dam wall is found nowhere else in South Africa.-250 000 bags of cement were used for the dam wall.-At full capacity, the dam fills to 205 million cubic meters of water. However, much of the success can be attributed to a small planthopper called Megamelus scutellaris which, like the water hyacinth, is native to South America. Rescuers free 4-month-old vulture from dense hyacinth at Hartbeespoort Dam. 2) As part of the programme, a barrier was in place at the bridge over the Magalies river.This kept most of the hyacinth off the dam. [12] [13] [14] The Dam suffers severe eutrophication , in 2003 resulting from high concentrations of phosphates and nitrates in the Crocodile River, the major inflow. This weed is said to double its size in the space of five days. Although the water hyacinth can be managed using biological control, the total eradication of the weed on the Hartbeespoort Dam is unlikely. He added that water tests showed a high E. coli bacteria level in the dam’s water. or. However, over time, this posed a new problem: the plants began to anaerobically digest, releasing biomass nutrients into the water. https://kormorant.co.za/2020/12/17/new-remediation-plan-for-hbp-dam Any stray pieces on the dam were removed manually. Hartbeespoort Dam: Oh dear! The dam was our headquarters and between us, we spent thousands of happy hours on it, unaware of the deadly danger in its water. Press alt + / to open this menu. Water hyacinth is an invasive non-native weed from South America, that has been on Hartbeespoort Dam since the mid-1960s. There has been a long history of control of this weed including herbicide application, mechanical and manual removal and biological control. Yearly, phosphate input is around 200 tons. Danielle Petterson | Apr 8, 2019 | News, Water, Water quality, Water sources | 0 comments. The results of two surveys conducted nationwide in November by the South African Geomatics Institute (SAGI) are the latest in a number of surveys conducted over the past year with Built Environment professionals in the private sector, that confirm how government is not doing enough to fast track dev... READ THE FULL ARTICLE FOR FREE ON PAGE 14 OF OUR DIGIMAG. Arthur Crewe, NSRI Hartbeespoort Dam station commander, said: At 10h45, Thursday, 24 December, NSRI Hartbeespoort Dam duty crew were activated following eye-witness reports of a vulture appearing to be trapped in dense Hyacinth on Hartbeespoort Dam near to the Randburg Bridge. On the Hartbeespoort Dam, six different biological control agents contributed to the successful management of water hyacinth this past summer. Arthur Crewe, NSRI Hartbeespoort Dam station commander, said: At 10h45, Thursday, 24 December, NSRI Hartbeespoort Dam duty crew were activated following eye-witness reports of a vulture appearing to be trapped in dense Hyacinth on Hartbeespoort Dam near to the Randburg Bridge. Biological control, which is the use of safe and specific insects or fungi to control invasive species, has been a successful and sustainable method of managing weeds on land and in the water in South Africa for over 100 years. The hyacinth! Every time I returned, I saw how it was deteriorating. All reviews water hyacinth beautiful area crocodile river boat cruise day trip tunnel dam harties hawkers pretoria algae fishing attractions weekends smudgemommy wrote a review Apr 2019 Shannon, Ireland 230 contributions 36 helpful votes Every time I returned, I saw how it was deteriorating. “Water hyacinth in Hartbeespoort is a serious problem for us and sometimes we can’t operate,” observes Tidimalo Makhubalo, a manager and senior skipper with Harties Watersports Centre, which runs ferry boats, speedboats, jet-skis and luxury cruises for … This figure excludes the totals removed by the various estates, shoreline owners and working for water teams around the dam. The 95-year-old Hartbeespoort Dam has been plagued by water hyacinths since the 1970s. The CBC will provide scientific and infrastructure support to the Harties Foundation to ensure the sustainable control of the water hyacinth on the dam, and will also investigate other places and organisations to manage more mass-rearing facilities with support from the Department of Environment, Forestry and Fisheries.For queries please contact CBC at cbcinfo@ru.ac.za. Cleaning Hartbeespoort Dam by turning invasive hyacinth into commercial products Coca-Cola has invested R25 million in Hya Matla Organics - a startup which turns water hyacinth … The 95-year-old Hartbeespoort Dam has been plagued by water hyacinths since the 1970s. Water hyacinth is a category 1 invasive species and it is deemed to be the most problematic aquatic weed. Email or Phone: Password: Forgot account? The Hartbeespoort Dam Rehabilitation Steering Committee has, during this phase of the removals, received little to no support from the Department of Water Affairs, which has given the committee until December this year to make an impact. “As a result, there is less food for the insects at present and we should expect a significantly reduced population of biological control agents going into the warmer months. Schoemansville is named after General Hendrik Schoeman, a Boer General in the Anglo-Boer War, who owned the farm that the Hartbeespoort Dam was built on. The NSRI rescue craft Rotary Endeavor was launched and we responded to the scene Clearing the water hyacinth is an extremely costly endeavour, one that is being undertaken almost entirely by … Join the Department of Cooperative Governance and Traditional Affairs (COGTA), in association with the Development Bank of Southern Africa (DBSA) for a webinar, unpacking and deliberating on themes critical to the DDM implementation | Register here: ow.ly/Y9wG50CNQf8 ... See MoreSee Less, Share on FacebookShare on TwitterShare on Linked InShare by Email, The results of two surveys conducted nationwide by the South African Geomatics Institute (SAGI) are the latest in a number of surveys conducted over the past year with Built Environment professionals in the private sector, that confirm how government is not doing enough to fast track development ... See MoreSee Less, Government is not doing enough to fast track development, shows survey | Infrastructure news, Join the Department of Cooperative Governance and Traditional Affairs (COGTA), in association with the Development Bank of Southern Africa (DBSA) for a webinar, unpacking and deliberating on themes critical to the DDM implementation | Register here: http://ow.ly/HW1950CNQf7, SURVEY: Government is not doing enough to fast track development http://ow.ly/TVFF50CHGrm, Zutari develops electro-desalination water treatment solutions for industry | http://ow.ly/1WmI50CHBC7, INSIGHT | Eastern Cape a growth engine for construction http://ow.ly/tyE750CHAvV, For most, the term hazardous waste conjures up images of toxic sludge, depleted uranium or the ubiquitous green slime. The dam up to that point had been clogged by hyacinths … The aerial total phosphorus and total nitrogen loading rates are in the order of 20 g/m 2 /y and 128 g/m 2 /y respectively. A vulture trapped by hyacinth and fishing line in the Hartbeespoort Dam was saved by the NSRI. What is water hyacinth? Hartbeespoort Dam water quality is hyper-eutrophic due to continuous inflow of excess phosphate from sewage and via sediments. However, there may be a way to harness these alien invaders to empower local communities and start a circular economy. - See 242 traveler reviews, 186 candid photos, and great deals for Hartbeespoort, South Africa, at Tripadvisor. Magalies Park, Hartbeespoort Picture: Water Hyacinth Problem In Hartebeespoort Dam - Check out Tripadvisor members' 2,664 candid photos and videos. Hartbeespoort Dam [Photo Credit: Centre for Biological Control] The Centre for Biological Control (CBC) at Rhodes University began a campaign to inundate the Hartbeespoort Dam (HBD) with the water hyacinth planthopper Megamelus scutellaris, a biological control agent of water hyacinth (Pontederia crassipes), between 2018 and 2020.. The Deputy Minister of the Department of Water and Sanitation last week announced a new remediation plan for the Hartbeespoort Dam during a visit to Hartbeespoort. The dam up to that point had been clogged by hyacinths … Hartbeespoort Dam [Photo Credit: Centre for Biological Control] The Centre for Biological Control (CBC) at Rhodes University began a campaign to inundate the Hartbeespoort Dam (HBD) with the water hyacinth planthopper Megamelus scutellaris, a biological control agent of water hyacinth (Pontederia crassipes), between 2018 and 2020.. Proteas settle on ‘meaningful gesture’ to … The hyacinth! According to the Hartbeespoort Dam Rehabilitation Steering Committee, the invasive plant, which doubles in size every two weeks or so, covers 40 per cent of the dam. All reviews water hyacinth beautiful area crocodile river boat cruise day trip tunnel dam harties hawkers pretoria algae fishing attractions weekends mrabotha wrote a review Sep 2020 Vanderbijlpark, South Africa 188 contributions 11 helpful votes Harvesting is considered to be able to produce organic fertilizer. Originally a native of the Amazon basin, the weed has spread throughout tropical, subtropical and some warmer temperate regions of the world since the late 1800s. On the Hartbeespoort Dam, six different biological control agents contributed to the successful management of water hyacinth this past summer. Sign Up. Originally a native of the Amazon basin, the weed has spread throughout tropical, subtropical and some warmer temperate regions of the world since the late 1800s. Eichhornia crassipes (water hyacinth) in the Hartbeespoort Dam, South Africa, using remote sensing data. 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