27th June 2024 - the Rivercare team once again sampled the River Granta at the road bridge, counting the various creatures found. This month, a number of larger Signal Crayfish were found as well as a Bullhead fish. Good numbers of Olive and Blue-winged Olive larvae were found, many of which were tiny - only around 2mm long! Mayfly larvae and both Cased Caddis and Caseless Caddis larvae were also found, as were large numbers of Freshwater Shrimp. A surprisingly large Cranefly larva - around 4-5cm long, was also found.
Larger Signal Crayfish
Small Signal Crayfish
Bullhead
Blue-winged Olive larvae
Some of the Olive larvae were really tiny - barely visible with the naked eye
Mayfly larvae
Cased Caddis larva
Cased Caddis larvae
Caseless Caddis larva
Mayfly larva
River Limpet
Pea Clams, and unknown water snail
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