Tillingbourne Riverfly Monitoring

Target Groups

We gather from the river a three-minute kick sample and from this we identify and count the following eight groups of invertebrates. In addition we also look out for any other invertebrates species not on this list such as damsel nymphs, hoglouse, beetle larvae, crayfish etc. All of the following photographs are of actual specimens found in The River Tillingbourne during our monitoring sessions.

• Caddisfly Larvae (Cased):

• Caddisfly Larvae (Caseless):

• Up-Winged Fly Larvae (Mayfly - Ephemeridae):

• Blue-Winged-Olive (Ephemerellidae):

• Flat-Bodied (Heptageniidae):

• Olives (Baetidae):

• Stonefly Larvae:

• Crustacians (Freshwater Shrimp - Gammarus):

Other species, not counted but frequently seen at Albury.

Hoglouse

Damsel Nymphs

Crayfish (American Signal)

Water Boatmen

Beetle larvae

Cranefly larvae

Lamprey

Minnow

There are many others not listed.