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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 |
| 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 |
| Great Bentley Stream |
| Brook Street, Cuckfield |
| Shortbridge Stream |
| Maresfield, Underhill |
| Shortbridge |
| Norlington Stream |
| Wellingham Lane |
| River Ouse, Scaynes Hill, Old Canal Cut | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
This sample was taken a short distance downstream 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.
Not a good result in view of the reasonable water flow. |
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| Location | River Ouse – main river, Scaynes Hill. | |
| Date | 1st December 2006 | |
| Grid Reference | TQ385244 | |
| Notes | Moderate to good flow. Gravel substrate and unshaded. |
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| Also netted in this sample. | - |
|
| Biological quality rating | ||
| Water quality rating | ||
| Species | Group | BMWP Score |
| Ephemeridae | Mayfly | 10 |
| Gammeridae | Shrimp | 6 |
| Polycelis | Flatworm | 5 |
| Elminthidae | Riffle Beetle - larva | 5 |
| Baetidae | Mayfly | 4 |
| Glossophoniidae | Leech | 3 |
| Asellidae | Hoglouse | 3 |
| Erpobdellidae | Leech | 3 |
| Chironomidae | Midge larvae | 2 |
| Oligochaeta | Tubifex worms | 1 |
| Total Score | 42 | |
| ASPT (Average Score Per Taxon) | 4.2 | |
December 2005
The low score probably reflects the uniformity of the conditions and the lack of aquatic vegetation as well as the
indifferent
quality of the water. | Location | River Ouse – main river, Scaynes Hill. | |
| Date | 13th December 2005 | |
| Grid Reference | TQ385244 | |
| Notes | Slow flowing, stoney substrate. No shade and no aquatic plants apart from some pieces of Pond Weed picked up in the net. |
|
| Also netted in this sample. | - |
|
| Biological quality rating | ||
| Water quality rating | ||
| Species | Group | BMWP Score |
| Ephemeridae | Mayfly - Ephemera vulgate | 10 |
| Agriidae | Demoiselle - Calopteryx virgo | 8 |
| Polycentropidae | Caddis - Polycentropus lavomaculata | 7 |
| Gammeridae | Shrimp | 6 |
| Hydropsychidae | caddis larvae | 5 |
| Elminthidae | Riffle Beetle Elmis aenea | 5 |
| Piscicolidae | Fish leech | 4 |
| Glossophoniidae | Leech | 3 |
| Asellidae | Hoglouse | 3 |
| Chironomidae | Midge larvae | 2 |
| Oligochaeta | Tubifex worms | 1 |
| Total Score | 54 | |
| ASPT (Average Score Per Taxon) | 4.9 | |
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