Sample 1, mainly gravel bottom with weed and decaying leaf detritus
1 demoiselle damselfly nymph (see photo)
1 caseless caddis fly larva -- distinctively yellowy-green (see photo)
1 freshwater hoglouse (see photo)
1 leech
c. 10 freshwater shrimps, various sizes
c. 5 small hairworms
1 flatworm (grey)
Various other small nymphs -- too small for easy identification
Sample 2, rocky bottom, less weed than sample 1
No nymphs
1 very long hairworm (c. 150mm -- see photo)
Lots of small, thin red hairworms
c. 10 shrimps
Tiny watermites
Sample 3, gravel/sandy bottom, closer to bridge
1 small fish (c. 3 cm long -- see photo). Possibly a minnow or baby trout.
1 burrowing mayfly nymph, Ephemera vulgata (c. 2 cm long -- see photo)
Various other small nymphs -- too small for easy identification
No shrimps
A shoal of tiny fish was seen close to bridge, probably minnows.
On large submerged stones removed from river for inspection, ramshorn snails and freshwater limpets observed.





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