Scottish Invasive Species Initiative (SISI)

The Scottish Invasive Species Initiative (SISI) is an exciting and ambitious 4-year partnership project set up to tackle invasive non-native species alongside rivers and water courses in northern Scotland.

Scottish Invasive Species Initiative

The Scottish Invasive Species Initiative (SISI) is an exciting and ambitious 4-year partnership project set up to tackle invasive non-native species alongside rivers and water courses in northern Scotland. We are one of ten fishery trust/board* partners in SISI and are working to deliver the project across our catchments.

The SISI project area is vast, covering an area of 29,500km2 – over a third of Scotland (an area larger than the country of Wales!) and encompasses Perthshire, Angus, Aberdeenshire, Moray and Highland. View a map of the project area here.

Invasive non-native species (INNS) have a significant negative impact on freshwater and riparian environments – they can be responsible for the decline of native species and increase bank erosion. The aim of invasive species management is to halt and control the spread of invasive species, undertake habitat restoration and encourage the return of native wildlife.

*Update* Revised Biosecurity Plan

The River Dee Trust has also just completed a revised Biosecurity Plan in partnership with the Scottish Invasive Species Initiative (SISI). The Biosecurity Plan combines the Dee and neighbouring Don district and details work that has been undertaken and recommends actions required to address biosecurity issues within the area. The plan duration is ten years and will therefore remain active throughout this period, being updated to accommodate new research or legislative changes.

River Dee and River Don Biosecurity Plan 2021-2030

The target and priority invasive species

The key target species for the SISI project are Giant hogweed, Japanese knotweed, Himalayan balsam, American skunk cabbage, White butterbur and the American mink.

SISI works in partnership with the fishery trusts, to support, train and equip volunteers with the skills and equipment they need to enable control of invasive species at a local level, embedded in the community. The SISI project is funded until October 2021, when we hope that local community control of invasive species will continue - providing a sustainable long-term solution to control.

SISI work is covering five main areas of activity, which we are helping to deliver.

With the help of volunteers, we are pulling out Himalayan balsam and treating Giant hogweed and Japanese knotweed with herbicide.

We need more volunteers to help, so please get in touch if you are interested!

We are building on previous control work by reinvigorating the programme of monitoring and trapping for removal of mink, with the help of a network of volunteers.

We are looking for more volunteers to adopt mink rafts in our area, could this be you?

No experience necessary! We are investing time and support in building a network of enthusiastic volunteers, providing them with skills, training and qualifications (at no cost) such as pesticide application (PA1/PA6) and first aid.

Through delivering education programmes for schools and community groups we can engage people in discovering the importance of the river environment and the impacts of invasive species.

A key part of controlling invasive species (and diseases) is preventing their spread into new areas, so we are all working to promote good biosecurity measures.

The SISI team and getting involved

The SISI project is led by Scottish Natural Heritage (SNH) and is funded by the Heritage Lottery Fund, SNH and by in-kind support from the project partners and volunteers - the total value of the project is some £3.24 million. The project is delivered by both a team of SISI staff employed by the project and by our own fishery trust staff.

At the River Dee, the invasive species management work is being led by Jamie Urquhart, Fisheries Protection Manager

If you are interested in volunteering with any aspect of the SISI project, have a look at the volunteering pages on the SISI website or get in touch directly with Jamie by email or by calling the River Office on +44 (0) 1339 880411

Find out more and keep in touch with SISI

You can find out more about the Scottish Invasive Species Initiative (SISI), the target species, how to get involved and volunteer or keep in touch with progress on the project website and through social media via the links below:


Facebook: Scottish Invasive Species Initiative

Twitter: @SISI_project

Instagram: scot_invasive_sps_initiative

*The ten fishery trusts/boards involved in the SISI project are; Tay District Salmon Fishery Board, Esk Rivers & Fisheries Trust, River Dee Trust, Deveron Bogie & Isla Rivers Charitable Trust, Spey Fishery Board, Findhorn Nairn & Lossie Fisheries Trust, Ness & Beauly Fisheries Trust, Cromarty Fisheries Trust, Wester Ross Fisheries Trust and West Sutherland Fisheries Trust. In addition to these, The University of Aberdeen is an academic partner in the project.

A Million Trees to Save Our Salmon

January 30, 2020

The River Dee Trust has announced plans to plant a million native trees in one of the biggest nature restoration projects in the Cairngorms. The project will recreate areas of landscape that have been lost for 2000 years.

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