Canadian pondweed Julia Stubbs Partridge Freshwater and Wetlands - PowerPoint PPT Presentation

Experimental shading to control Canadian pondweed Julia Stubbs Partridge Freshwater and Wetlands Advisor

Canadian pondweed Recorded from at least 300 km squares in Scotland. Contributes to unfavourable condition in 62 designated sites..

Jute Why jute? • biodegradable (avoids need to remove material at the end of the trial) • made from renewable resources

Loch Libo Relatively small and accessible No other significant pressures Owned and managed by a single owner (SWT)

Loch Libo – setting up the trial Selection of location with the loch: • direct access was difficult – reducing interference • easy access by boat from the other end of the loch • the south-western bay could be sub-divided into ‘experimental’ and ‘control’ areas that were very similar

Loch Libo – setting up the trial

Loch Libo – setting up the trial

Loch Libo – setting up the trial

Loch Libo – running the trial 305 gsm 550 gsm

Loch Libo – running the trial

Loch Libo – the results

Loch Libo – the results

https://www.nls.uk/e-monographs/2013/557.pdf Thank you