Tillingbourne Riverfly Monitoring

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Monitoring Results
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Total Score (ASI)
Middle Beat Graph
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Earlier Results  < click for >   Later Results
 
River Tillingbourne Date: 19/08/09 11/11/2009 03/02/2010
Albury Park Recorded by:  CRS  CRS  
Middle Beat  

Category

(A-D)

AMI

Score

Estimated

Number

Category

(A-D)

AMI

Score

Estimated

Number

Category

(A-D)

AMI

Score

Estimated

Number
 
                       
Cased caddis B 2 20 A 2 1 B 2 10
Caseless caddis B 2 15 B 2 30 B 2 20
Ephemeridae (Mayfly) A 1 3 B 1 20 B 2 31
Ephemerellidae (Blue Winged Olive) B 2 60 - - - - - -
Heptageniidae (Yellow May Dun) B 2 15 C 2 200 C 3 750
Baetidae (Olives) C 3 120 C 1 200 C 3 600
Stoneflies - - - - - - - - -
Gammarus (Freshwater shrimp) D 4 1500 D 4 1400 D 4 1600
                       
Middle Beat (10) Angler's Monitoring Index:

 

 16  

 

15

     16  
TQ 06524 47771  

Large crayfish (american) lurking in the ranunculus. A single stonefly nymph found upstream later in day - unfortunately not in 3 minute sample.

Water Temp 11.5

PH 7.5

Rather low in cased caddis probably due to time available to count - the goerida are rather small and easy to miss.

Water Temp 13C

 Large numbers of heptageniidae and baetis as well as gammarus. A few hoglouse and damsels.

Water Temp 4.5C
    Notes: