The Riverfly Partnership
@riverflies.bsky.social
Working to protect UK river water quality, further the understanding of riverfly populations & conserve riverfly species & habitats.
riverflies.org
Hosted by @freshwaterbio.bsky.social
riverflies.org
Hosted by @freshwaterbio.bsky.social
Reposted by The Riverfly Partnership
🎺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.⬇️🧵
November 26, 2025 at 11:37 AM
🎺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
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
November 25, 2025 at 12:36 PM
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
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
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
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
November 25, 2025 at 12:18 PM
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
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
Reposted by The Riverfly Partnership
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...
Get your mandibles on a copy today!
www.fba.org.uk/shop/p/river...
November 18, 2025 at 4:52 PM
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...
Get your mandibles on a copy today!
www.fba.org.uk/shop/p/river...
Reposted by The Riverfly Partnership
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...
www.fba.org.uk/fba-voice/la...
November 13, 2025 at 7:10 PM
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...
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...
www.bbc.co.uk/news/article...
Citizen science tackles Dorset's invisible river pollution
Hundreds of volunteers for two citizen science projects monitor pollution in Dorset's rivers.
www.bbc.co.uk
November 17, 2025 at 12:15 PM
Great to see @dorsetwildlife.bsky.social spreading the word about the value of Riverfly monitoring here!
www.bbc.co.uk/news/article...
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!
November 12, 2025 at 11:49 AM
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
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
November 10, 2025 at 12:02 PM
💧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
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
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
November 7, 2025 at 12:04 PM
🪰 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
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
📆 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
November 5, 2025 at 12:22 PM
✨ 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
📆 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
💧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
November 3, 2025 at 12:02 PM
🐛 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
💧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
Reposted by The Riverfly Partnership
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
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
October 31, 2025 at 12:39 PM
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
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 💀
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 💀
October 31, 2025 at 12:02 PM
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 💀
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
👏 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
October 29, 2025 at 1:54 PM
📊 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
👏 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
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
October 27, 2025 at 12:45 PM
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
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
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
October 24, 2025 at 11:02 AM
✨ 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
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...
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...
October 22, 2025 at 10:47 AM
🐟 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...
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.
👉 Find out more in the replies below.
October 20, 2025 at 2:01 PM
💧Ever wondered what your RMI scores would look like in a pristine river? 🏞️
👉 Find out more in the replies below.
👉 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
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
October 17, 2025 at 11:11 AM
📅 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
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...
📘 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...
October 15, 2025 at 10:43 AM
🪶 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...
📘 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
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
October 13, 2025 at 11:44 AM
🎥 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
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...
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...
October 10, 2025 at 11:23 AM
🐛 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...
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...
👋 Meet Rachel Spry - our Riverfly Ecology Contact for South and West Yorkshire!
With over three years supporting Riverfly monitors, Rachel’s seen the network grow across Yorkshire. 💧
💬 “It’s wonderful to work in partnership with people who truly care about their local rivers.”
With over three years supporting Riverfly monitors, Rachel’s seen the network grow across Yorkshire. 💧
💬 “It’s wonderful to work in partnership with people who truly care about their local rivers.”
October 8, 2025 at 11:25 AM
👋 Meet Rachel Spry - our Riverfly Ecology Contact for South and West Yorkshire!
With over three years supporting Riverfly monitors, Rachel’s seen the network grow across Yorkshire. 💧
💬 “It’s wonderful to work in partnership with people who truly care about their local rivers.”
With over three years supporting Riverfly monitors, Rachel’s seen the network grow across Yorkshire. 💧
💬 “It’s wonderful to work in partnership with people who truly care about their local rivers.”
In August 2025, our Riverfly monitors submitted an incredible 882 of surveys across the UK. 📊
👏 Thank you to every volunteer who headed out with a kick net last month.
Supported by our funders: Environment Agency and @esmeefairbairn.bsky.social.
👉 www.riverflies.org/riverflyrepo...
👏 Thank you to every volunteer who headed out with a kick net last month.
Supported by our funders: Environment Agency and @esmeefairbairn.bsky.social.
👉 www.riverflies.org/riverflyrepo...
October 6, 2025 at 11:12 AM
In August 2025, our Riverfly monitors submitted an incredible 882 of surveys across the UK. 📊
👏 Thank you to every volunteer who headed out with a kick net last month.
Supported by our funders: Environment Agency and @esmeefairbairn.bsky.social.
👉 www.riverflies.org/riverflyrepo...
👏 Thank you to every volunteer who headed out with a kick net last month.
Supported by our funders: Environment Agency and @esmeefairbairn.bsky.social.
👉 www.riverflies.org/riverflyrepo...
🎟️ Reminder: Tickets are still on sale for the Riverfly Conference 2025!
📍 Natural History Museum, London
📆 Friday 14th November 2025
Join us for a day of talks (in-person or online), research & connecting with the Riverfly community. Don’t leave it too late!
👉 www.tickettailor.com/events/theri...
📍 Natural History Museum, London
📆 Friday 14th November 2025
Join us for a day of talks (in-person or online), research & connecting with the Riverfly community. Don’t leave it too late!
👉 www.tickettailor.com/events/theri...
October 3, 2025 at 10:22 AM
🎟️ Reminder: Tickets are still on sale for the Riverfly Conference 2025!
📍 Natural History Museum, London
📆 Friday 14th November 2025
Join us for a day of talks (in-person or online), research & connecting with the Riverfly community. Don’t leave it too late!
👉 www.tickettailor.com/events/theri...
📍 Natural History Museum, London
📆 Friday 14th November 2025
Join us for a day of talks (in-person or online), research & connecting with the Riverfly community. Don’t leave it too late!
👉 www.tickettailor.com/events/theri...