Get Involved
Volunteering Opportunities
There are plenty of opportunities for you to get involved in helping to look after the River Sid. For example:
- You can take part in monthly water quality monitoring of the river and its tributaries.
- Join in with monthly riverfly monitoring of small river invertebrates, for example mayfly and freshwater shrimp. Your results from both of these will be fed into the Westcountry Rivers Trust’s database.
- Tight on time? River Watcher is a simple toolkit to encourage engagement with the river in a location of your choice and in a manner that interests you most.
Register your interest using the form at the bottom of this page.
Water Quality Testing
Our volunteers are registered with the Westcountry Rivers Trust Citizen Science Investigation (WRT CSI) and visit their monitoring site monthly.
To understand our watercourses, we record features such as river channel width, water depth, rate of river flow, the character of the river bottom, potential sources of pollution, land use on the adjacent banks, presence of Invasive species such as Himalayan balsam and Japanese Knotweed, wild life present in and around the water e.g. wagtails, dippers, kingfishers, water measurers, fish and otters. We measure 4 parameters to indicate water quality, namely temperature, total dissolved solids (TDS), turbidity and phosphate.
Discover more about the science behind Water Quality Testing and what we test for on our project page:



Riverfly Monitoring
Riverfly monitoring samples the invertebrate life within the river. These are the nymphs and larvae that as adults leave the water as flies to breed, and include groups like mayflies, caddis flies and stoneflies. There are eight species groups that are monitored, (one of these is not a fly at all!) These species are susceptible to pollution and are good indicators of a river’s health.
Monitoring takes place once a month. The sample is taken by a 3 minute sweep of the river, kicking the river bed to dislodge the invertebrates, which flow down into the net. Having taken the sample from the river, the species are counted. Sometimes you might get hundreds of individuals, sometimes none. A score is allocated to each species group, 0 for none present, 1 for upto 10, 2 for u to 100, 3 for upto 1000 and 4 over 1000. An average score for our river is between 10 to 12, 5 is poor and 16 excellent.
Find out more about Riverfly Monitoring, the eight different species we look for, and more on our project page:


River Watcher
- Register your interest – by emailing info@riversid.org and be sure to let us know which stretch of river you’d like to keep watch over (this should be a manageable length up to 250m max, and easy for you to get to).
- Record your findings – we’ve created this easy form for you to log any findings with us. These will be fed into a spreadsheet so we can use the data to compare changes over periods of time. Not sure what to record? Check the ‘What to look for’ section below for a list of things to look out for.
- Report anything exceptional – dead fish and pollution should be reported to the Environment Agency on 0800 080 706. If you’re concerned about something else then drop us an email info@riversid.org
Tips for River Watching
Spend 5 – 15 minutes being still, breathing, listening, and watching. Imagine your thoughts flowing away downstream to help you clear your mind. Ask yourself some questions:
- What can I hear?
- What can I smell?
- Is the breeze warm or cool?
- Is there any wildlife around?
- What plants can I see?
It isn’t always easy to find the time to be in nature, so try to make it a priority, or fit it into your usual routine, perhaps on your walk to work or school, or on a lunch break for example.
What to look for
Let us know about any exceptional changes to your stretch of river. These are the kinds of things you can look out for:
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Wildlife – any sightings are great to have, or if you usually see something but don’t anymore, we’d love to know.
- Plants – large areas of invasive, non-native plant species such as Himalayan Balsam and Japanese Knotweed (We are already aware of the areas south of Sidford). See below for help identifying both plants.
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Pollution – fly tipping, dead fish, excessive algal growth engulfing other river plants. We recommend reporting these directly to the Environment Agency on 0800 080 706. Be prepared to give date, time, location and offer to send them photos.
- Other things – anything you think it‘s worth noting e.g. new barriers in the river such as fallen trees, large areas of bank erosion, new areas of flooding.
Identifying non-native plants

Himalayan Balsam

Japanese Knotweed
Japanese Knotweed has shovel-shaped or heart-shaped bright green leaves with a point tip, displayed in a zig-zag pattern up the stem. In the autumn, leaes can turn golden with red speckles. Stems can look a bit like bamboo with green with reddish-purple speckles. In late summer clusters of small, creamy-white flowers appear. In winter, the dead, brown stems are easy to identify.
Other things to note
Things you may want to notice for yourself, which don’t necessarily need to be emailed to us:
- Changes in flow patterns, the shape of the river or bank sides
- Changes in size and shapes of stone banks
- The slow recolonisation of stone banks with plants after heavy rain.
- Wildlife in, on and around the river.
- The herbaceous plants and trees which grow by the river.
- Seasonal changes
Find out more
Newsletter
Subscribe to the newsletter to stay up to dates with the latest news along the River Sid,
including conservation work, volunteering opportunities, and useful information.