riverfly monitoring

Buntingford Watermill Bridge Riverfly Monitoring – December 2022

Site: Luynes Rise, Buntingford, River Rib
Recorders: David Edwards, John Hood
Survey date: 3rd December 2022
Time: 1400hrs
Air temperature:
Water Temperature: 4 degrees
Weather:
Flow: 2
Phosphate: 0.53
Nitrate: 10
Nitrite: 0.15

Cased Caddisfly11
Caseless caddisfly00
Mayfly (Ephemeridae)00
BWO (Ephemerellidae)11
Olives (Baetidae)00
Stoneflies00
Shrimps (Gammarus)402
Score4
Stickleback (1), Water hog louse (100) snails (10), Leeches (10)