riverfly monitoring

Buntingford Watermill Bridge Riverfly Monitoring – October 2022

Site: Luynes Rise, Buntingford, River Rib
Recorders: David Edwards, John Hood
Survey date: 27th October 2022
Time: 1400hrs
Air temperature:
Water Temperature:
Weather:
Flow: 2
Phosphate: 0.42
Nitrate: 2
Nitrite: 0.3

Cased Caddisfly41
Caseless caddisfly201
Mayfly (Ephemeridae)00
BWO (Ephemerellidae)00
Olives (Baetidae)00
Stoneflies2?1
Shrimps (Gammarus)102
Score5
Water hog louse (150) cranefly larvae (4), Leeches (20)
image of riverfly recording sheet