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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 |
| Pellingford Brook, A272 road bridge, near Scaynes Hill | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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. See the latest water quality test results for this location... April 2010This may be a slightly underestimated score, as there were 2 water beetle larvae and one adult that we were unable to identify. We have preserved the specimens and will consult an expert in due course. A notable feature of this sample was the abundance and species variety of Limnephilidae.
This is the first invertebrate monitoring exercise undertaken at this site. We were unsurprised by the low BMWP score in this featureless and apparently straightened section of the stream, about 10m downstream from our chemical sampling point. However, The presence of high scoring cased caddis species would suggest reasonable water quality has pertained for some time. |
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| Location | Pellingford Brook, A272 road bridge, near Scaynes Hill | |
| Date | 28th October 2008 | |
| Grid Reference | TQ 374218 | |
| Notes | Straight channel, relatively even depth with low flow. Silt/clay substrate, heavily shaded. |
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| Also netted in this sample. | 2 sticklebacks (3 spined), profuse water mites. |
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| Biological quality rating | D. Poor biological quality | |
| Water quality rating | Good | |
| Species | Group | BMWP Score |
| Leptoceridae | Cased caddis | 10 |
| Calopterygidae | Damselfly nymphs | 8 |
| Limnephilidae | Cased caddis | 7 |
| Gammaridae | Shrimps | 6 |
| Dytiscidae | Diving beetle larvae | 5 |
| Baetidae | Mayfly nymphs | 4 |
| Erpobdellidae | Leech | 3 |
| Asellidae | Hoglouse | 3 |
| Chironomidae | Midge larvae | 2 |
| Oligochaetae | Worms | 1 |
| Total Score | 49 | |
| ASPT (Average Score Per Taxon) | 4.9 | |
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