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The Riverfly Partnership

The Riverfly Partnership is a dynamic network of organisations, representing anglers, conservationists, entomologists, scientists, water course managers and relevant authorities, working together to: - protect the water quality of our rivers; - further the understanding of riverfly populations; - and actively conserve riverfly habitats. The Riverfly Partnership is hosted by the Freshwater Biological Association.

Join the Mailing List

 A graphic style envelope featuring the Riverfly Partnership Logo Would you like to receive the newsletter, information about our  conferences, or other Riverfly activities? 

Please CLICK HERE to sign up. 


The link will take you to a registration form where you can select your preferences. 
If you have registered for an ARMI account in the last 6 months, or are about to register for one, there is no need to sign up. You may use the form to update your preferences. 

ARMI Training Event in Cornwall

The first training event of the season has been scheduled for the 14th of February in Helston, Cornwall. It has been organised by the Cornwall Wildlife Trust. 

ARMI training is essential for anyone who would like to become an ARMI monitor or coordinator. The training sessions cover every thing you need to know. This includes the ARMI monitoring method, an introduction to river invertebrates, how to record and interpret your data, and a practical demonstration. 

To see the full details, please see the events page

Happy New Year

The Riverfly Partnership logo of a mayfly is shown alongside a Happy New Year greeting to ARMI volunteers and partners

New Brown Trout Discovered at Loch Laidon

A new type of brown trout has been discovered at Loch Laidon in Perthshire. Researchers used systematic sampling techniques and DNA analysis to identify four types of brown trout living in the loch that are genetically, ecologically and morphologically distinct from one another.  

The deep water, bottom feeder or 'profundal benthivore' is new to science. Similar quartets have been observed in other species such as the Arctic charr, but never for brown trout. The profundal benthivore is paler than the other trout in the loch, and has much larger eyes and mouth.  

The findings present exciting possibilities about the diversity of freshwater lakes in the Northern hemisphere. 

'Findings such as those for Loch Laidon may well be the tip of a biodiversity iceberg in Scottish and other northern lakes, the true size of this iceberg will only become clear once we study more lakes using methods such as those we employed'. - Professor Verspoor

The four brown trout types from Loch Laidon

The study was conducted through the Rivers and Lochs Institute at UHI Inverness College by Professor Eric Verspoor, Mark Coulson, Ronald Greer and David Knox. The paper was published in the journal Freshwater Biology and can be accessed online here.

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