Checking Floating Pennywort mats on the River Cam

Floating Pennywort is growing all along the banks of the River Cam, in places growing out to mid stream.  Disturbance by livestock grazing the edges and boat activity can dislodge these mats, becoming free floating.  These can lodge on other fixed mats and overhanging trees to block the river surface completely.

We regularly check our section of the river and a short way upstream to recover and remove these mats where possible.  This helps to minimise Pennywort build up along this section of the river and should help to prevent re-colonisation of the New Cut channel next year if the Water Buffalo manage to eradicate it.