Grilled Cheese

ExploreLog inSign up

The Riverfly Partnership

@riverflies.bsky.social

175 Following410 Followers

Working to protect UK river water quality, further the understanding of riverfly populations, and conserve riverfly species & habitats.
riverflies.org
Hosted by @freshwaterbio.bsky.social

PostsRepliesMedia
@riverflies.bsky.socialOct 9, 2026, 11:43 AM

Being a citizen scientist this month means potentially skipping a survey๐ŸŸ

Some Riverfly groups take a pause now but if you are still out sampling, watch your step. It's spawning season.

๐Ÿ“ข Spotted a Redd? Don't step in! Take a ๐Ÿ“ท & alert your coordinator immediately.

๐Ÿ“ท @wildtrouttrust.bsky.social

@riverkennet.bsky.socialSep 23, 2026, 10:08 PMReposted by @riverflies.bsky.social

After the discovery of a second Demon shrimp on the Holy Brook, ARK are raising awareness of the importance of Check Clean Dry:
www.bbc.co.uk/news/article...
@riverflies.bsky.social

@riverflies.bsky.socialSep 22, 2026, 2:46 PM

*Please note - things will vary a lot between sites and regions, but, very generally, these are patterns you might see*

#AutumnEquinox #TheRiverflyPartnership

Photo Credits: David Warriner, Jeff Pearce, Dave Lewis.
3/3

@riverflies.bsky.socialSep 22, 2026, 1:16 PM

Late summer and early autumn can naturally bring lower numbers and diversity at some monitoring sites, and you may spot smaller larvae in your sampling trays - don't forget your magnifying glasses! ๐Ÿ”Ž

@riverflies.bsky.socialSep 22, 2026, 1:16 PM

๐Ÿ‚ The autumn equinox is here. As the days become shorter and temperatures begin to drop, our rivers are changing too โ€“ for riverflies, this is also a time of seasonal transition.

Autumn is arriving. So do riverflies change with the seasons?Earlier in the summer, you might find some large larvae in your sample. Spring and summer peak times for many species to emerge as adults, so those larger are nearly ready to go. You might be lucky enough to spot one emerging from your sampling tray!As autumn arrives, riverfly numbers and diversity may naturally be lower at some sites. Many species have already emerged, while others are present as eggs or very small larvae. So your autumn sample may look quite different from one taken earlier in the year.Seasonal change is part of the picture when we interpret what we find in our rivers.
@riverflies.bsky.socialSep 22, 2026, 8:36 AM

Spotted again by an eagle-eyed Riverfly monitor!

@riverflies.bsky.socialSep 18, 2026, 10:20 AM

Riverfly surveyors: if you spot signal crayfish, killer/demon shrimp, or zebra mussels โ€” don't touch or move it. Photo it, note the spot, report via iRecord/INNS Mapper, then Check Clean Dry your kit.

@theriverstrust.bsky.socialSep 18, 2026, 8:25 AMReposted by @riverflies.bsky.social

Big River Watch has begun! To join the UK & Ireland's biggest visual survey of river health: ๐Ÿ“ฑ Download the free Big River Watch app ๐ŸŸ Enjoy time by a river recording what you see ๐Ÿ“† Submit your surveys by the end of 24th Sept We can't wait to see your observations on our live Big River Watch map!

@mikewilsonuk.bsky.socialSep 16, 2026, 3:26 PMReposted by @riverflies.bsky.social

#Riverflies are โ€˜canaries of the riverโ€™. Monitoring #Riverfly populations is a great way to evaluate river health. Completed my training with the Tweed Foundation. My journey began when listening to Robert Macfarlane talk about his book, โ€˜Is A River Aliveโ€™, last August. @riverflies.bsky.social

@riverflies.bsky.socialSep 16, 2026, 3:36 PM

Welcome and congratulations on becoming a Riverfly Monitor! @robgmacfarlane.bsky.social has inspired a fair few people to seek out Riverfly training days since his tour last year โ˜บ๏ธ

@tweedguardians.bsky.socialSep 7, 2026, 9:28 AMReposted by @riverflies.bsky.social

๐Ÿ“ขA spot has opened up on the Tweed Foundation's next riverfly training course

๐Ÿ“† Tuesday 15 September 10am-5pm in Norham

๐ŸŒ You can find out more details on our website (rivertweed.org.uk/tweed-founda...)

๐Ÿ“ง If you would like to join please send me an email [email protected]

@riverflies.bsky.socialAug 27, 2026, 8:39 AM

Craving more freshwater news in between our bi-monthly Riverfly Partnership newsletters? Our host organisation, the FBA, sends theirs out monthly โ€“ you can read the latest issue here ๐Ÿ’ง

Terms of UsePrivacy PolicyCommunity StandardsHelpGet the app

Grilled Cheese is a product of Village Compute

Version devBuilt at: 2026-10-11 02:37:10 EDT