riverfly monitoring

Standon A120 Bridge Riverfly Monitoring – October 2023

Site: Standon A120 Bridge, River Rib
Recorders: Nic Bartrop, Toby Spencer
Survey date: 23rd October 2023
Time: 1400hrs
Air temperature:
Water Temperature: 10ºC
Weather:
Flow: 3
Phosphate:0.72
Nitrate: 5
Nitrite: 0

Cased Caddisfly1003
Caseless caddisfly21
Burrowing Mayfly (Ephemeridae)41
BWO (Ephemerellidae)41
Olives (Baetidae)222
Stoneflies00
Shrimps (Gammarus)652
Score10
Bullheads 2, sticklebacks 2, snails (lots), damselfly larvae, non-biting midge 16, water measurer, pond skater, whirly gig 2
riverfly monitoring

Standon A120 Bridge Riverfly Monitoring – September 2023

Site: Standon A120 Bridge, River Rib
Recorders: Nic Bartrop, Toby Spencer
Survey date: 15th September 2023
Time: 1030hrs
Air temperature:
Water Temperature: 12ºC
Weather:
Flow: 3
Phosphate:0.76
Nitrate: 5
Nitrite: 0

Cased Caddisfly392
Caseless caddisfly182
Burrowing Mayfly (Ephemeridae)00
BWO (Ephemerellidae)11
Olives (Baetidae)1203
Stoneflies192
Shrimps (Gammarus)1103
Score13
Bullheads 2, sticklebacks 4, snails (lots)
Uncategorized

Local farmer dredges River Rib

A few years ago, whilst on a walk along Barwick Lane I came across the sight of a tractor operating in the River Rib.

Yes, you did read IN.

Being somewhat acquainted with the rather expensive and lengthy process required before acquiring a licence for such work, I contacted the River Rib CaBA Catchment Co-ordinators (HMWT) who advised that they weren’t aware of any approved works in that area of the River Rib and that this activity should therefore be reported to the EA. This was duly done.

Move forward in time to yesterday and as I drove up Barwick Lane I noticed what looked like piles of chalk along the river bank in a similar area to where I had seen the tractor some years previously.

Last evening I went down for a closer look and discovered that a stretch of riverbed and bank had been apparently scoured over a stretch of 150 metres. To my understanding this is a clear breach of the regulations in place to protect our streams and rivers.

For those keen to understand exactly why dredging rivers and especially chalkstreams is a very bad idea should read Charles Rangeley-Wilson’s blog on the subject, which references the incident on the River Lugg in Herefordshire – Dredging makes flooding worse.

Also worth a read is the Environment Agency blog from April 2023 and a reminder that Mr Price was sentenced to 12 months in prison and fined £600,000 for his actions.

This has now been reported to the Environment Agency, Incident reference 2184855

riverfly monitoring

Standon A120 Bridge Riverfly Monitoring – August 2023

Site: Standon A120 Bridge, River Rib
Recorders: Nic Bartrop, Toby Spencer
Survey date: 30th August 2023
Time: 1000hrs
Air temperature:
Water Temperature: 12ºC
Weather:
Flow: 2
Phosphate: 1.19
Nitrate: 5
Nitrite: 0

Cased Caddisfly552
Caseless caddisfly71
Burrowing Mayfly (Ephemeridae)51
BWO (Ephemerellidae)11
Olives (Baetidae)1603
Stoneflies102
Shrimps (Gammarus)1453
Score13
Bullheads 6, sticklebacks 3, leeches (lots!), snails c. 200, blood worms c.40
riverfly monitoring

Jack’s Field, River Quin Riverfly Monitoring – July 2023

Site: Jack’s Field, River Quin, Braughing
Recorders: Andy Ayres, Pauline Ayres
Survey date: 29th July 2023
Time: 1100hrs
Flow (0-5): 2
Air temperature:
Water temperature: 13degC
Weather:


Phosphate: 0.16ppm
Nitrate (NO3-N): 5 – 10ppm
Nitrite: 0

Cased Caddice352
Caseless caddice81
Burrowing Mayflies (Ephemeridae)
Blue-winged Olives (Ephemerellidae)31
Olives (Baetidae)352
Stoneflies
Shrimps (Gammarus)10004
Score10
FishBullheads8
Sticklebacks0
Minnows0
Trout0
Stone Loaches0
Up-wing fliesCaenidae0
Leptophlebiidae0
DecapodaCrayfish0
IsopodaWater Hoglouse (Asellus)0
MegalopteraAlderflies0
Damselflies0
OtherLeeches25
Beetle larvae (Great Diving)0
Truefly Larvae15
Comments: Kingfisher flew past
riverfly monitoring

Gravelly Lane Ford River Quin Riverfly Monitoring – July 2023

Site: River Quin, Gravelly Lane Ford, Braughing
Recorders: Andy Ayres, Mark Wilkinson
Survey date: 28th July 2023
Time: 1650hrs
Flow (0-5): 2, clear
Air temperature:
Water temperature: 13oC
Weather:


Phosphate: 0.33ppm
Nitrate (NO3-N): 5 – 10ppm
Nitrite: 0

Cased Caddis372
Caseless caddis41
Burrowing Mayflies (Ephemeridae)00
Blue-winged Olives (Ephemerellidae)21
Olives (Baetidae)802
Stoneflies11
Shrimps (Gammarus)11004
Score11
FishBullheads1
Sticklebacks2
Minnows0
Trout0
Stone Loaches0
Up-wing fliesCaenidae0
Leptophlebiidae0
DecapodaCrayfish0
IsopodaWater Hoglouse (Asellus)0
MegalopteraAlderflies0
Damselflies0
OtherLeeches2
Cranefly larvae0
Bloodworms0
riverfly monitoring

Standon A120 Bridge Riverfly Monitoring – July 2023

Site: Standon A120 Bridge, River Rib
Recorders: Nic Bartrop, Toby Spencer
Survey date: 26th July 2023
Time: 0930hrs
Air temperature:
Water Temperature: 12ºC
Weather:
Flow: 2
Phosphate: 1.15
Nitrate: 2.5
Nitrite: 0

Cased Caddisfly212
Caseless caddisfly61
Burrowing Mayfly (Ephemeridae)21
BWO (Ephemerellidae)502
Olives (Baetidae)2103
Stoneflies31
Shrimps (Gammarus)1703
Score13
Bullheads 8, mosquito larvae (lots!), leeches (lots!), snails (lots!), pearl clams (10), riffle beetle larvae (1), non biting midge larvae (10)
riffle beetle larvae – Elmidae
abstraction, pollution, river restoration

North Herts Council Cabinet Panel for Environment focuses on Water

This Wednesday North Herts Council Cabinet Panel for Environment will be holding a meeting via zoom with a focus on water.

The Panel is comprised of Councillors and all meetings are open to the public to attend. The idea is for it to be a forum where climate/environmental issues can be discussed, and gain the ideas, views, and updates of the public, experts, and councillors.

North Herts Council’s Executive Member for the Environment requested that the topic of the July meeting be Water. The council have requested presentations from the Wildlife Trust on some work they are doing within the district, and the water companies on supply and waste water disposal. Friends of the Rib & Quin have been invited to attend and participate in the public discussion.

You can watch a playback of the streamed meeting from the Council’s YouTube channel below.

abstraction, pollution, riverfly monitoring

FORQ at Braughing Wheelbarrow Race

Pauline, Andy and Toby were at the Braughing Wheelbarrow Race on Saturday to talk to visitors about our chalk streams and show young and old the river flies and other invertebrates that live in them. There was also the opportunity to look at the levels of nutrient pollution in the River Quin with samples taken for both phosphate and nitrate testing.