📊Riverfly 2025 stats are in! Our 2025 Riverfly data summary brings together monitoring surveys from across the UK, highlighting the incredible work of volunteers protecting our rivers. Dive into the data and read more👇 https://www.riverflies.org/riverflyreports

We're super excited to share with you that the FBA 2026 Annual Scientific Meeting will take place at @edinburghnapier.bsky.social, on Thursday 11 June. Please save the date... we'd love you to join us in #Edinburgh! Interested? Watch this space for more details & a call for #ASM2026 abstracts soon!

Thanks to everyone who stopped by the Riverfly stand at the British Fly Fair International last weekend! Simon (Riverfly Co-chair) and Arron (EA Ecology Contact) did a great job representing the Partnership.

🧪 Citizen science in action! Peter Hanks from the West Cornwall ARMI Hub has built his own sorting table to make Riverfly monitoring easier in the field. Got your own kit hacks or survey tips? Drop them in the comments or send us a photo! 📸 Peter Hanks #Riverfly #CitizenScience #FieldHacks

🧪 Curious about data gaps in freshwater monitoring and how citizen science is helping to fill them? Check out this excellent podcast from the Rivers Trust, featuring Michelle Walker completing a Riverfly sample. 🎧Spotify: open.spotify.com/episode/4q8h...

📊New Thames21 Citizen Science Dashboard! Bringing together Riverfly and water quality data to shine a light on river health across the Thames Basin. 👉 Find out more: www.thames21.org.uk/2026/01/tham...

Our December Data Roundup is here! 👏 Riverfly volunteers submitted 384 surveys across the UK! 🎉 #Riverfly #CitizenScience #Volunteers

Meet Arron Watson, national Ecology Contact coordinator. Arron has been the national EC coordinator since 2019, bringing together all EA regions. He supports volunteers with training days, runs Extended upskill sessions, and delves into the data. #Riverfly #MeetYourEcologyContact #EnvironmentAgency

🪰 #Freshwater Friday - A rare glimpse of a mayfly (Heptageniidae) moulting! This stop-frame sequence shows a Heptageniidae shedding its exoskeleton - captured by our brilliant Riverfly volunteer Hilary. Just one of the many hidden stories happening beneath the water's surface. #CitizenScience

Looking back at 2025 with @riverflies.bsky.social: a year of collaboration, conferences & #citizenscience. 12 months of amazing action for #riverflies & #freshwaters... geographical reach is now larger than ever, with 700+ rivers being monitored by 2000+ volunteers!💙 www.fba.org.uk/fba-voice/th...

Interested in becoming the new Senior Development Manager for the Riverfly Partnership? 📄 The job application deadline is Sunday 18th January - apply now! 💻 https://www.fba.org.uk/riverfly-partnership-senior-development-manager

📍 University of Staffordshire Nature Reserve – Riverfly Monitoring Join us on Monday 19 Jan, 10am–2pm by the River Trent for a hands-on riverfly monitoring session! We’ll be looking at the tiny freshwater invertebrates, perfect for curious minds. Link to sign up in the comments below.

Would you like to make a real impact on freshwater conservation? @riverflies.bsky.social, hosted by FBA, is looking for a Senior Development Manager to support one of Europe's longest-running citizen science programmes. Closing date is 18 Jan. Find out more & apply: www.fba.org.uk/riverfly-par...

📢 Reminder for Riverfly monitors Make sure all your 2025 Riverfly surveys are uploaded and approved on Cartographer. 📊 Data will be downloaded on 15th January and only approved data will be included in the 2025 annual report. Every record counts 💧

✨Riverfly Partnership Calendar 2026 - Now 50% OFF!✨ Our Riverfly Calendar is packed with stunning freshwater invertebrate images from our photography competition. Grab yours now! 👉https://www.fba.org.uk/shop/p/riverfly-partnership-2026-calendar

🎄Merry Christmas from Riverfly HQ!🎅 ✨A huge thank you to all our amazing volunteers, partners, funders and supporters for everything you've done throughout 2025. 💧We hope you have a delightful festive break! We'll see you back out on the river in 2026. 🎁Merry Christmas and Happy New Year!

Our November Data Roundup is here! 👏 Riverfly volunteers submitted a huge 526 surveys across the UK! 🎉 This work is supported by our amazing funders at the Environment Agency and @esmeefairbairn.bsky.social  👉 https://www.riverflies.org/riverflyreports

🚨Before you head out to sample your river - check it's safe!🚨 ✅ Complete a Dynamic Risk Assessment ✅ Check river conditions ✅ Sample with a friend Read more in our RMI Theory Guide 👉 www.riverflies.org/keydocuments/#rmitraining #CitizenScience #StaySafeOutdoors #WinterSampling

📣We're recruiting! The Riverfly Partnership is, hosted by the @freshwaterbio.bsky.social seeking a Senior Development Manager to grow sustainable funding for one of Europe's longest-running citizen science programmes. Passionate about rivers and community science? 👉 www.fba.org.uk/riverfly-par...

🎄Thank you to everyone who took part in our Riverfly Christmas Quiz last week! We loved seeing so many of you test your freshwater knowledge. Now it's time to reveal the answers and this year's winner...👀✨ #RiverflyMonitoring #CitizenScience #ChristmasQuiz #Giveaway

☃️ Day 5 - Christmas Quiz Giveaway🎄 ✨Today's Question: Which family of up-wing flies is known for its flattened body shape that helps it cling to rocks in fast-flowing rivers? ✨ Think you know your Riverfly trivia? Test your knowledge for a chance to win our Riverfly Calendar 2026! 🎁

☃️ Day 4 - Christmas Quiz Giveaway🎄 ✨Today's Question: Stoneflies belong to which order of insects? ✨ Think you know your Riverfly trivia? Test your knowledge for a chance to win our Riverfly Calendar 2026! 🎁

☃️ Day 3 - Christmas Quiz Giveaway🎄 ✨Today's Question: What is the missing word? As larvae, riverflies undergo several ............., which is when they shed their outer layer in order to grow larger.✨ Test your knowledge for a chance to win our Riverfly Calendar 2026! 🎁

Day 2 - Christmas Quiz Giveaway🎄 ✨Today's Question: Complete the name of this stonefly species, named after the colour of its markings, once thought to be extinct in the UK until it was discovered on the River Dee in Wales in 2017: 'Scarce ................. sally' Win our Riverfly Calendar 2026! 🎁

Day 1 - Christmas Quiz Giveaway🎄 ✨Today's Question: Which river is the tenth longest river in the UK, flowing through Northamptonshire, Cambridgeshire and Lincolnshire before reaching The Wash? Think you know your Riverfly trivia? Test your knowledge for a chance to win our Riverfly Calendar 2026🎁

New Riverfly sampling spot! 🏡 We've moved HQ, which means one very exciting thing... a brand new Riverfly sampling location for team Riverfly! 🙌 We can't wait to see what invertebrates turn up and how this new site compares over time. 🐛✨ #FreshwaterMonitoring #CitizenScience #FreshwaterFriday

🎄 The perfect stocking filler for freshwater fans! Our 2026 Riverfly Calendar has found its new home inside our Crafty Critters Shopper bag... and it fits perfectly! This duo makes the ideal Christmas gift.✨🎁 Both available on our website shop - grab yours now! https://www.riverflies.org/

Our October Data Roundup is here! 👏 Riverfly volunteers submitted a huge 809 surveys across the UK! 🎉 This work is supported by our amazing funders at the Environment Agency and Esmee Fairbairn Foundation. 👉 https://www.riverflies.org/riverflyreports

🎺We are accepting expressions of interest to participate in London Rivers Week 2026 (Saturday 23rd May to Sunday 31st June). London Rivers Week is a week-long annual campaign inspiring the public to connect with and appreciate London’s rivers and the projects to restore them.⬇️🧵

Thank you to everyone who joined us at the Riverfly Conference 2025! A big shout out to all of our speakers, and to Steve and Rebecca for brilliantly chairing the morning and afternoon sessions. 👏 Presentation slides are on our website: 👉https://www.riverflies.org/newsblog/riverfly-conference

If you, like us, are in awe of #riverflies, check out the fantastic @riverflies.bsky.social 2026 Calendar! Each month is a celebration of the #freshwater species and habitats all the amazing riverfly #volunteers work to protect. 💙 Get your mandibles on a copy today! www.fba.org.uk/shop/p/river...

We're thrilled to share with you an update from #Lakefly – a new citizen science project to monitor the health of our lakes, in partnership with @naturalengland.bsky.social, empowering volunteers to survey freshwater #invertebrates & provide data about water quality. www.fba.org.uk/fba-voice/la...

Great to see @dorsetwildlife.bsky.social spreading the word about the value of Riverfly monitoring here! www.bbc.co.uk/news/article...

We’re proud to have been part of the CaSTCo (Catchment Systems Thinking Cooperative) project, helping advance collaborative river monitoring across England and Wales. Together, we’ve proven that community data can drive real decisions for river recovery, and this is just the start!

💧Crayfish Guidance! In England's rivers we have both native and invasive non-native species of crayfish. 👀 They are pretty hard to tell apart. Learn what to do and not to do if you come accidentally come across one in your Riverfly sample. 👉231027+Riverfly+Guidance+VB.pdf

🪰 Freshwater Friday - Flat-bodied stone-clingers (Heptageniidae) Larvae in this family of mayflies have a flattened shape, which is perfect for clinging to rocks in fast-flowing streams. If you spot them, it’s a good sign of a healthy river. #FreshwaterFriday #Riverfly #Heptageniidae

✨ Last chance to get your ticket! ✨ 📆 The Riverfly Conference - 14th November, at the Natural History Museum. 🐛 We're thrilled to announce our keynote speaker, Josh Cohen at Leeds University, discussing their project: Riverkin. 👉 https://www.tickettailor.com/events/theriverflypartnership/1670265

🐛 Head over to the DaNES Annual Insect Show 2025 this weekend! 🐛 💧Saturday 8th November for displays, talks and live exhibits at Nottingham Trent University. 👉Find out more here: https://www.facebook.com/events/1088208220163788/ #InsectShow2025 #RiverflyMonitoring

Happy Halloween freshwater fiends! Do you believe in ghosts? Nope. How about ghost ponds?👻 Please allow us to introduce you to a the amazing #GhostPond aficionado @carlsayer.bsky.social for inspiring ponderings on the incredible power of ghost pond resurrections! Check it out: youtu.be/bT1FLPCjEPw

Beware the creepy-crawlies of the river... 👻 This Halloween, we’re shining a spooky spotlight on the creepy-crawly creatures living just beneath the surface - riverfly invertebrates 👀 🎃Mayflies 🎃Stoneflies 🎃Caddisflies Their presence tells us if our waters are clean or haunted by pollution 💀

📊 Our September data roundup is here! 👏 Riverfly volunteers submitted a huge 821 surveys across the UK — thank you for every single one. 💙 This work is supported by our amazing funders at the Environment Agency and @esmeefairbairn.bsky.social. 👉https://www.riverflies.org/riverflyreports

The Big Insect Rescue Plan is here! 🐞 Following last month’s Wild Summit, organisations have joined forces to halt UK insect declines.🐝 Take the short survey before the end of the month. Results revealed in spring 2026! 🌸 👉 https://butterfly-conservation.org/big-insect-rescue-plan

✨ Freshwater Friday spotlight: Damselflies! ✨ Part of our Extended Riverfly family, damselflies are slender, agile hunters that spend most of their lives underwater as larvae. 💦 #FreshwaterFriday #RiverflyPartnership #CitizenScience #Damselflies #FreshwaterInvertebrates

🐟 Spawning season reminder! Salmon and trout are beginning to spawn. 👀 If you spot signs of spawning, do not sample at that site, and let your local coordinator know. 📚 Learn more about identifying redds and the spawning process via the Wild Trout Trust www.wildtrout.org/assets/files...

💧Ever wondered what your RMI scores would look like in a pristine river? 🏞️ 👉 Find out more in the replies below.

📅 The Riverfly Partnership 2026 Calendar is here! Beautiful riverfly photos, £10.99, shipping early November! Every purchase supports citizen science and river health. www.fba.org.uk/shop/p/river... #RiverflyPartnership #CitizenScience #Freshwater

🪶 Want to expand your mayfly ID skills? 📘 Mayfly Larvae (Ephemeroptera) of Britain and Ireland by J.M. Elliott & U.H. Humpesch is packed with keys, illustrations and ecology notes to help you ID those tricky Mayflies and beyond. Available at:🔗 www.fba.org.uk/shop/p/m11rz...

🎥 Riverfly Quiz Time! 🐛 Can you guess this riverfly? 👀 Look closely... those tufted gills on the abdomen are a big clue! 💬 Think you know? Drop your answer in the comments! #Riverfly #FreshwaterInvertebrates #CitizenScience

🐛 Freshwater Friday: Blue-winged Olive 💧 Blue-winged Olive numbers have dipped — but don’t worry! It’s a normal seasonal change. Adults emerge in summer, and their eggs wait until spring to hatch. 🌿 📊 Find out more in our Riverfly reports: www.riverflies.org/riverflyrepo...