Jack’s Field, River Quin Riverfly Monitoring – October 2022

Site: Jack’s Field, River Quin, Braughing
Recorders: Andy Ayres, Mark Wilkinson
Survey date: 31st October 2022
Time: 1230hrs
Flow (0-5): 1
Air temperature:
Water temperature: 12C
Weather:

Phosphate: 0.14ppm
Nitrate (NO3-N): 5ppm
Nitrite: 0

Cased Caddice	10	2
Caseless caddice	2	1
Burrowing Mayflies (Ephemeridae)	1	1
Blue-winged Olives (Ephemerellidae)
Olives (Baetidae)	25	2
Stoneflies
Shrimps (Gammarus)	150	3
	Score	9

Fish	Bullheads	1
	Sticklebacks	0
	Minnows	0
	Trout	0
	Stone Loaches	0
Up-wing flies	Caenidae	0
	Leptophlebiidae	0
Decapoda	Crayfish	0
Isopoda	Water Hoglouse (Asellus)	2
Megaloptera	Alderflies	0
	Damselflies	0
Other	Leeches	10
	Beetle larvae (Great Diving)	0
	Cranefly Larvae	10

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