Spring 2026 Riverfly Training Day

Chilterns Chalk Streams Project

Learn how to identify and record abundances of freshwater invertebrates as a Riverfly monitor.

Restore Hope

Riverfly monitoring is a citizen science survey that uses the invertebrate life of the rivers as a measure of river health. The survey technique involves kick sampling in the river, then identifying 8 groups of aquatic macroinvertebrates which are indicators of river health. After the training session, you can adopt a designated Riverfly site on any river closest to you to survey on a monthly basis. If you are already connected with your local rivers group, please let us know, if not we can connect you with a local group so you can join in.Learn more about the Riverfly method through the <a href="https://www.colnecan.org.uk/index.php/riverfly-monitoring" title="https://www.colnecan.org.uk/index.php/riverfly-monitoring" target="_blank" data-msys-clicktrack="0" rel="nofollow noopener noreferrer">Chilterns, Hertfordshire and Middlesex Riverfly Hub.</a>

The <a href="https://www.chilternstreams.org/our-work/citizen-science-hub/" title="https://www.chilternstreams.org/our-work/citizen-science-hub/" target="_blank" data-msys-clicktrack="0" rel="nofollow noopener noreferrer">Chilterns Chalk Stream Project</a> have organised the Spring Riverfly monitoring training day for Saturday 18 April, 09:00 - 17:00 at Restore Hope, Latimer Park (HP5 1TU). The training day will roughly follow the below schedule: T heory sessions09:00 - Welcome09:15 - Introduction and context10:00 - The Anglers' Riverfly Monitoring Initiative (ARMI)10:25 - ARMI in practice1 0:45 - Tea/coffee break11:00 - Target groups - life history &amp; ecology12:15 - Lunch Practical Sessions13:00 - Introduction to fieldwork &amp; site selection13:20 - Fieldwork15:00 - Identification16:30 - Summary17:00 - Finish

On the day you will be provided with all the equipment you need and resources for species idenitification, health &amp; safety and so much more. This includes your own Riverfly ID guide, net and bucket. The £35 cost of attendance is a small subsidy towards these costs. All you need to bring is knee-high wellies/waders, suitable clothing and a packed lunch; we'll provide you with tea/coffee and biscuits. Booking will close Monday 13th April but book your spot quickly to secure your place. Please direct any queries to: <a href="https://chalkstreamsvolunteers@chilternsaonb.org" title="https://chalkstreamsvolunteers@chilternsaonb.org" target="_blank" data-msys-clicktrack="0" rel="nofollow noopener noreferrer">chalkstreamsvolunteers@chilternsaonb.org</a>

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Spring 2026 Riverfly Training Day

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Spring 2026 Riverfly Training Day

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