Buntingford Aspenden Road Bridge Riverfly Monitoring – October 2022

Site: Aspenden Road Bridge, Buntingford, River Rib
Recorders: David Edwards, John Hood
Survey date: 27th October 2022
Time: 1100hrs
Air temperature:
Water Temperature:
Weather:
Flow: 3
Phosphate: 2.50+
Nitrate: 50.0
Nitrite: 0.3

Cased Caddisfly	4	1
Caseless caddisfly	1	1
Mayfly (Ephemeridae)	0	0
BWO (Ephemerellidae)	0	0
Olives (Baetidae)	1	1
Stoneflies	0	0
Shrimps (Gammarus)	0	0
	Score	3
Water hog louse (10), beetle larvae (5), Crane fly larvae (3)