Invasive Species Control

The River Dee Trust is a partner on two control projects the Scottish Invasive Species Initiative (SISI) and the North East Non-Native Invasive Species (NENNIS) project. These projects cover slightly different geographical areas and timelines but have a broadly similar remit of INNS control, awareness and volunteer engagement.

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. The River Dee Trust is partner to two INNS projects and have employed an Invasive Coordinator to support delivery of these projects detailed below.


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.

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.


NorthEast Non-Native Invasive Species (NENNIS) project

Aims to provide co-ordination by establishing an overarching INNS Forum covering the North East of Scotland including Aberdeenshire and Aberdeen City. The project will employ a Invasive Coordinator establish and run the INNS Forum and to deliver the objectives set out by the project partners.

These will involve the following elements:-
• Prevention and biosecurity to prevent establishment of new INNS within the project area
• Assist organisations/groups with capacity building for survey and monitoring of INNS plants, recruitment of volunteers, control work and other aspects of INNS work. This will involve providing training and will ensure that skills are available to continue this work in the long-term.
• Awareness raising amongst a wide range of individuals and organisations
• Disseminating information on best practice, control techniques, research, funding etc.
• Assistance with access to resources to control INNS including training, chemicals, machinery and funding where this lies outside the scope of existing funded projects.
• To deliver a long-term mechanism, through the INNS Forum, that will ensure that co-ordination and co-operation on the control and monitoring of INNS continues beyond the short-term funded projects for control work.

In relation to the control of INNS, the project will initially focus on the three main problematic plant species giant hogweed, Japanese knotweed and Himalayan baslam, however the Forum will provide an opportunity to consider and share good practice and knowledge in relation all invasive species relevant to the project area.



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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