Friends of the Rib & Quin will be attending ‘A Picnic for Change’ on Hartham Common in Hertford on Sunday 20th August. This year the event is celebrating our local chalk streams and will run from 12 noon.
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 Caddice | 35 | 2 |
| Caseless caddice | 8 | 1 |
| Burrowing Mayflies (Ephemeridae) | ||
| Blue-winged Olives (Ephemerellidae) | 3 | 1 |
| Olives (Baetidae) | 35 | 2 |
| Stoneflies | ||
| Shrimps (Gammarus) | 1000 | 4 |
| Score | 10 |
| Fish | Bullheads | 8 |
| Sticklebacks | 0 | |
| Minnows | 0 | |
| Trout | 0 | |
| Stone Loaches | 0 | |
| Up-wing flies | Caenidae | 0 |
| Leptophlebiidae | 0 | |
| Decapoda | Crayfish | 0 |
| Isopoda | Water Hoglouse (Asellus) | 0 |
| Megaloptera | Alderflies | 0 |
| Damselflies | 0 | |
| Other | Leeches | 25 |
| Beetle larvae (Great Diving) | 0 | |
| Truefly Larvae | 15 |
| Comments: Kingfisher flew past |
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 Caddis | 37 | 2 |
| Caseless caddis | 4 | 1 |
| Burrowing Mayflies (Ephemeridae) | 0 | 0 |
| Blue-winged Olives (Ephemerellidae) | 2 | 1 |
| Olives (Baetidae) | 80 | 2 |
| Stoneflies | 1 | 1 |
| Shrimps (Gammarus) | 1100 | 4 |
| Score | 11 |
| Fish | Bullheads | 1 |
| Sticklebacks | 2 | |
| Minnows | 0 | |
| Trout | 0 | |
| Stone Loaches | 0 | |
| Up-wing flies | Caenidae | 0 |
| Leptophlebiidae | 0 | |
| Decapoda | Crayfish | 0 |
| Isopoda | Water Hoglouse (Asellus) | 0 |
| Megaloptera | Alderflies | 0 |
| Damselflies | 0 | |
| Other | Leeches | 2 |
| Cranefly larvae | 0 | |
| Bloodworms | 0 |
Friends of the Rib and Quin 