Read and download the results of MadMacs

In January 2020, large amounts of water hyacinth (Eichhornia/Pontederia crassipes) were removed from Hartbeespoort dam, South Africa. Learn more about the background of the mass development, and see pictures of the field work and first results here.

In July 2020, the invasive plant Ludwigia was removed in Lake Grand-Lieu, France. Learn more about the macrophyte removal and its impacts on biodiversity here.

In July 2020, Elodea nuttallii was removed in Lake Kemnade, Germany. More information about the field work and first results here.

In September 2020, Sarah Faye Harpenslager, postdoc at Leibniz-Institute of Freshwater Ecology and Inland Fisheries, introduced the MadMacs project in a series of tweets. Learn more about the mass development of aquatic plants here (link to Twitter thread).

In June 2020, large amounts of submerged Juncus bulbosus plants were removed in the Otra river at Rysstad. Learn more about the field work and see the first results here.

Last updated 19.04.2021