Sunday 17 August 2014

River Sampling - 12 August 2014

We met at 18:30 to sample at our usual site near the cricket nets.

This is what we recorded:

Organisation: Abington Naturewatch
Site name: Cricket Pitch Reach, Abington, Cambridge
River: Granta
Grid ref:
Monitoring Group Coordinator: Rob Mungovan
Date: 12 August 2014
Recorded by: Anne Dunbar-Nobes and Peter Brunning
Cased caddisfly:  Nil
Caseless caddisfly:  Nil
Mayfly Ephemeridae:  Nil
Blue-winged olive: Category B, Estimated number 20
Flat bodied up-wings:  Nil
Olives: Category C, Estimated number 120 (all very small)
Stoneflies: Nil
Gammarus (Freshwater shrimp): Category B, Estimated number 35

River low; overcast, windy, cool evening (6.30pm); three kick-shuffles undertaken within the allotted 3 minutes
  1. stones/rocks on bottom, small amount of weed; 
  2. large stones/gravel shallow area;
  3. in main river flow over stoney bottom.
Note: now the reach is so shady, and recent heavy rainfall has increased the flow and removed the weed and riffles, there is very little variation within our 30 metre stretch – no silty areas or  thick weed beds.
Hatches seen: none
Other fauna: Signal crayfish (5); tiny leech, red hairworms (2)

Non-catches: water snails, fish, beetle larvae


Shrimp (Gammarus)

Signal Crayfish

No comments:

The Aims of Abington Naturewatch

At their meeting on 9 April 2005 the members approved this revised version of the aims of Abington Naturewatch:

  • To monitor and record the wildlife (fauna & flora) within the borders of the Abingtons;
  • To encourage protection of our wildlife, maintain its quality and foster its diversity;
  • To promote awareness of the richness, potential and problems of the natural environment of the Abingtons;
  • To cooperate in improving access to the local natural environment for the benefit of all Abington villagers.

Pat Daunt, Founder

The organisation is informal and communication is by email if possible; members are notified of events from time to time. Contact details are maintained by a small "project team". There is currently no membership fee as costs are covered by voluntary contributions at events.

Members are encouraged to report notable sightings of flora and fauna within the Abingtons to the appropriate sector coordinator and an illustrated record is published annually.

A map of the area covered, with some features noted, is available here:>

For more information or to join, please contact David Farrant on (01223) 892871.

Contributions to our records should be sent to sector contacts or either of the above. Photographs may also be submitted to Andy Merryweather (