Camalote removal work completed on the stretch of the Guadiana River between Villanueva de la Serena, Medellín beach, and Baden de Valdetorres.

The section of the Guadiana River between Villanueva de la Serena, Medellín beach and the Valdetorres speed bump is, after the pre-eradication work carried out this summer by the Guadiana Hydrographic Confederation, without the apparent presence of water hyacinth. The 35 km of this section are added to the 75 km of the lower sections that include the urban area of Mérida, the Montijo reservoir and the whole river downstream of the Talavera speed bump, passing through Badajoz and up to the Alqueva reservoir.

The monitoring of the river by means of land and air surveillance (flights and drones) and remote sensing to see the state of the biological invasion has made it possible to know the situation of this area of the river which has gone to green alert level. However, there are distributed brigades that daily monitor the area. Although there are still another 70 km of the river covered with a large amount of water hyacinth, the risk of this invasive plant entering Portuguese lands is far from over and the clean-up forecasts for next winter are very optimistic.

During these last months with the increase of temperatures and putting in full vegetative activity of the plant, the works of action of the Hydrographic Confederation of the Guadiana have been centered in the surveillance and control of the subsections of river without apparent plant and in the control and defense of strategic points and infrastructures, in this action has participated the ACECA project that is co-financed with FEDER funds through the program INTERREG V A Spain-Portugal (POCTEP) 2014-2020, project that leads the Hydrographic Confederation of the Guadiana.

At the moment they work in the river 6 teams of heavy machinery and around 100 people who are in charge to contain, to watch or to maintain the zones affected by the invasive plant camalote. At present, the 70 km of river most affected by the presence of large plant patches are the sections between the Valdetorres and Miralrío (Mérida) speed bumps and between the Torremayor and Talavera speed bumps. With the drop in temperatures, work on the integral cleaning of the river will be intensified once again in the pending sections, always maintaining the inspection of those with no apparent presence of the plant. This surveillance is being reinforced and will last several years.