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Biological Monitoring Working Party
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| Introduction |
BMWP scores for the locations sampled by S.O.C.S. can be viewed below: |
| River Ouse |
| East Mascalls |
| Scaynes Hill - Main river |
| Scaynes Hill - Canal Cut |
| Sheffield Park |
| Barcombe Mills |
| River Uck |
| Hempstead Mill - Uckfield |
| Bevern Stream |
| Stoneywish Country Park |
| Spatham Lane |
| Streat Lane |
| Swansyard Farm |
| Holmans railway bridge |
| Clapper's Bridge |
| North End Stream |
| Cooksbridge |
| Hamsey Road |
| Plumpton Mill Stream |
| Plumpton Mill |
| Ferrings Bridge |
| Longford Stream |
| Cinder Hill, Chailey |
| Ridgelands Lane - Newick |
| Longford Bridge |
| Pellingford Brook |
| Near Scaynes Hill |
| Scrase Stream |
| Lindfield |
| Great Bentley Stream |
| Brook Street, Cuckfield |
| Shortbridge Stream |
| Maresfield, Underhill |
| Shortbridge |
| Norlington Stream |
| Wellingham Lane |
| Lewes Winterbourne |
| Lewes Railwaylands |
| Shortbridge Stream, Shortbridge. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| This sample was taken a short distance from where we perform chemical tests each month on the quality of the water. We intend to carry out biological tests at this site on a regular basis to monitor the long term effects that water quality has on invertebrate life in the stream. See the latest water quality test results for this location...
A very similar score to that of March 2008, good for a somewhat engineered channel. |
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| Location | Shortbridge Stream – Horse & Barge Farm – Shortbridge | |
| Date | 7th April 2009 | |
| Grid Reference | TQ451213 | |
| Notes | Deep glide with silt/gravel substrate, low flow, moderate shading. |
|
| Also netted in this sample. | Water mites | |
| Biological quality rating | C. Fair to good biological quality | |
| Water quality rating | Very good | |
| Species | Group | BMWP Score |
|
Leptophlebiidae |
Mayfly | 10 |
|
Ephemeridae |
Mayfly | 10 |
| Leptoceridae | Cased Caddis | 10 |
|
Goeridae |
Cased caddis | 10 |
| Psychomyiidae | Caseless caddis | 8 |
| Limnephilidae | Cased caddis | 7 |
|
Nemouridae |
Stonefly nymph | 7 |
| Gammaridae | Shrimp | 6 |
| Hydropsychidae | Caseless caddis | 5 |
|
Dytiscidae |
Beetle larva | 5 |
| Haliplidae | Beetle larva | 5 |
|
Erpobdellidae |
Leech | 3 |
| Hydrobiidae | Snail | 3 |
| Chironomidae | Midge larvae - bloodworms | 2 |
| Oligochaeta | Round worms - Tubifex | 1 |
| Total Score | 92 | |
| ASPT (Average Score Per Taxon) | 6.13 | |
March 2008
This section of the stream is of uniform depth and lacks diverse morphology. In view of this, the range of organisms found was limited, but the ASPT was very good. | Location | Shortbridge Stream – Horse & Barge Farm – Shortbridge | |
| Date | 14th March 2008 | |
| Grid Reference | TQ451213 | |
| Notes | Deep“glide” - uniform depth 70 cm average - gravel and clay substrate. Moderate flow and turbidity. Weather overcast. |
|
| Also netted in this sample. | 1 Brown China Moth larva – 1 Water mite Hydrachna spp. | |
| Biological quality rating | C. Fair biological quality | |
| Water quality rating | Very good | |
| Species | Group | BMWP Score |
| Leptophlebiidae |
Mayfly | 10 |
| Ephemeridae |
Mayfly | 10 |
| Sericostomatidae | Cased Caddis | 10 |
| Leptoceridae |
Cased caddis | 10 |
Lepidostomatidae |
Cased caddis | 10 |
| Caenidae |
Mayfly | 7 |
| Gammaridae | Shrimp | 6 |
| Hydropsychidae | Caseless caddis | 5 |
| Gyrinidae |
Whirligig beetle | 5 |
| Simuliidae | Blackfly larvae | 5 |
| Sphaeriidae |
Mussels | 3 |
| Asellus | Hoglouse | 3 |
| Chironomidae | Midge larvae - bloodworms | 2 |
| Oligochaeta | Round worms | 1 |
| Total Score | 87 | |
| ASPT (Average Score Per Taxon) | 6.21 | |
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