Table 1.
Seagrass meadow area data used to calculate historic seagrass loss in the United Kingdom.
| Site name | Site location | Current extent ha | Historic extent ha | m/s-flat area ha | Seagrass area/ha m/s-flat | Reference for m/s-flat area |
|---|---|---|---|---|---|---|
| Spurn bight | Humber estuary | 0.59 | 550 | 4,842 | 0.11 | JNCC, 2018 |
| Lindisfarne | NE England | 679 | 1,046 | 1,571 | 0.67 | JNCC, 2015 |
| Foulness/maplin sands | Thames estuary | 40. | 320 | 8,746 | 0.04 | JNCC, 2005 |
| Fal and helford | Cornwall | 104 | 208 | 645 | 0.32 | JNCC, 2018 |
| River stour and orwell | Thames estuary | 1 | 380 | 2,620 | 0.15 | JNCC, 2018 |
| Exe estuary | Cornwall | 146 | N.D. | 900 | 0.16 | JNCC, 2018 |
| Dornoch firth | East Scotland | 117 | 2,546 | 6,787 | 0.38 | JNCC, 2018 |
| Cromarty firth | East Scotland | 1,200 | 3,241 | 3,766 | 0.86 | JNCC, 2018 |
| Moray firth | East Scotland | N.D. | 1,098 | 2,339 | 0.47 | JNCC, 2018 |
| Plymouth sound | Devon | 92 | N.D. | 2,555 | 0.04 | JNCC, 2018 |
Current and historic extent (where available) and mud-/sandflat (m/s-flat) area were used to determine average seagrass area per hectare (ha) of mud-/sandflat. N.D. = no available data