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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 |
| Norlington Stream, Wellingham. | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 surprising absence of any mayfly nymphs in this sample. |
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| Location | Norlington Stream – Wellingham Lane. | |
| Date | 31st March 2008 | |
| Grid Reference | TQ430131 | |
| Notes | Partly shaded, moderate flow, slight turbidity, soft clay substrate with some gravel. No in stream vegetation. |
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| Also netted in this sample. | Several empty Planorbis shells and Sericostoma cases. 1 Dipteran larva ? Stratiomys spp. | |
| Biological quality rating | B. Good biological quality | |
| Water quality rating | Good | |
| Species | Group | BMWP Score |
| Goeridae |
Cased caddis | 10 |
| Molannidae |
Cased caddis | 10 |
| Leptoceridae |
Cased caddis | 10 |
| Philopotamidae | Caseless caddis | 8 |
|
Agriidae |
Damsel nymph | 8 |
| Limnephilidae | Cased caddis | 7 |
| Polycentropodidae | Caseless caddis | 7 |
| Gammaridae | Shrimp | 6 |
| Ancylidae | Limpet | 6 |
| Helodidae | Water beetle larva | 5 |
| Elminthidae |
Riffle beetle (adult) | 5 |
| Simuliidae | Blackfly larvae | 5 |
| Sialidae | Alderfly larva | 4 |
| Asellus | Hoglouse | 3 |
|
Hydrobiidae |
Snail | 3 |
| Lymnaeidae | Snail | 3 |
| Valvatidae | Snail | 3 |
| Glossiphoniidae | Leech | 3 |
| Erpobdellidae | Leech | 3 |
| Chironomidae | Midge larvae - bloodworms | 2 |
| Oligochaeta | Round (Lumbriculus & Tubifex) | 1 |
| Total Score | 112 | |
| ASPT (Average Score Per Taxon) | 5.33 | |
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