Abington Naturewatch: River Sampling

Monday, 7 July 2014

River Sampling - 2nd July 2014

We sampled in the usual place near the cricket nets from about 6:30 pm. The weather was fine and the river very low. We found mayfly larvae plentiful and also found other fauna including fish and small crayfish.

This is what we recorded for the Riverfly records:

Cased caddisfly: Nil

Caseless caddisfly: Nil

Mayfly Ephemeridae: Nil

Blue-winged olive: Category A, Estimated number 6

Flat bodied up-wings: Category A, Estimated number 2

Olives: Category B, Estimated number 50

Stoneflies: Nil

Gammarus (Freshwater shrimp): Category B, Estimated number 60

Hatches seen: none

River very low; fine, dry weather, warm evening; 3 kick-shuffles undertaken within the allotted 3 minutes (1. gravel on margin of fools watercress, 2. gravel close to water crowfoot area, 3. 30 sec kickshuffle close to bank + 30 sec sweep in main river)

Other fauna: Signal crayfish (3 large, 3 small); Demoiselle larva (1); 10 tiny minnows/sticklebacks

No comments:

Post a Comment

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: http://maps.google.co.uk/maps/ms?ie=UTF8&hl=en&msa=0&msid=213774935674882866424.00000111dca2be9f06ab8&z=13>

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 (amerryweather61@gmail.com)