A303 Bridge – 2014
These results are taken from kick sampling conducted beneath the bridge where the A303 Wincanton Bypass crosses the river Cale; UK grid reference ST71100 27786
| Date | May 14 | Jun 14 | Jul 14 | Aug 14 | ||||
| Target Groups | Number | Category | Number | Category | Number | Category | Number | Category |
| Cased caddis | 9 | a | 75 | b | 22 | b | 18 | b |
| Caseless caddis | 8 | a | 5 | a | – | 2 | a | |
| Mayflies | – | 3 | a | 1 | a | 1 | a | |
| Blue-winged olives | 4 | a | 5 | a | 3 | a | 1 | a |
| Flat-bodies | – | 2 | a | 4 | a | 2 | a | |
| Olives | 50 | b | 62 | b | 135 | c | 50 | b |
| Stoneflies | – | – | – | 5 | a | |||
| Freshwater shrimp | 50 | b | 30 | b | 20 | b | 90 | b |
| Site score | 7 | 10 | 10 | 11 | ||||
| Notes | ||||||||
| Invasive Species | ||||||||
| American signal crayfish | NO | NO | NO | NO | ||||
| Himalayan balsam | YES | YES | YES | YES | ||||
| Japanese knotweed | NO | NO | NO | NO | ||||
| Giant hogweed | NO | NO | NO | NO | ||||
| Floating pennywort | NO | NO | NO | NO | ||||
| American skunk cabbage | NO | NO | NO | NO | ||||
| Other species noted | Leeches | Leeches | Freshwater limpet Bullhead | Bullhead | ||||
| River depth close | 20cm | 20cm | 15cm | 15cm | ||||
| River depth middle | 20cm | 20cm | 15cm | 15cm | ||||
| River depth far | 30cm | 30cm | 20cm | 20cm | ||||
*********************************************************************************************************
| Date | Sep 14 | Oct 14 | Nov 14 | Dec 14 | ||||
| Target Groups | Number | Category | Number | Category | Number | Category | Number | Category |
| Cased caddis | 55 | b | 21 | b | ||||
| Caseless caddis | – | – | ||||||
| Mayflies | 2 | a | – | |||||
| Blue-winged olives | 1 | a | 2 | a | ||||
| Flat-bodies | – | 2 | a | |||||
| Olives | 40 | b | 98 | b | ||||
| Stoneflies | – | – | ||||||
| Freshwater shrimp | 146 | c | 110 | c | ||||
| Site score | 9 | 9 | ||||||
| Notes | ||||||||
| Invasive Species | ||||||||
| American signal crayfish | NO | NO | NO | NO | ||||
| Himalayan balsam | YES | YES | NO | NO | ||||
| Japanese knotweed | NO | NO | NO | NO | ||||
| Giant hogweed | NO | NO | NO | NO | ||||
| Floating pennywort | NO | NO | NO | NO | ||||
| American skunk cabbage | NO | NO | NO | NO | ||||
| Other species noted | Leeches | Leeches, Bullhead | ||||||
| River depth close | 10cm | 10cm | cm | cm | ||||
| River depth middle | 15cm | 15cm | cm | cm | ||||
| River depth far | 15cm | 10cm | cm | cm | ||||
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