Research and analysis
C4iv: Regional sea assessments, and the status of coastal water bodies and offshore units for soft sediment invertebrates, 2010 to 2015
Updated 1 December 2025
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| UKMS sub region | Regional Sea | Result type | value |
|---|---|---|---|
| Greater North Sea | Northern North Sea | Regional Sea Assessment results | Above GES target |
| Greater North Sea | Southern North Sea | Regional Sea Assessment results | Below GES target |
| Greater North Sea | Eastern Channel | Regional Sea Assessment results | Above GES target |
| Celtic Seas | Western Channel and Celtic Seas | Regional Sea Assessment results | Below GES target |
| Celtic Seas | Irish Sea | Regional Sea Assessment results | Below GES target |
| Celtic Seas | Minches and Western Scotland | Regional Sea Assessment results | Above GES target |
| Celtic Seas | Scottish Continental Shelf | Regional Sea Assessment results | Above GES target |
| Celtic Seas | Atlantic North-West Approaches | Regional Sea Assessment results | No data |
| Celtic Seas | Shared waters between N. Ireland and Rep of Ireland | Regional Sea Assessment results | Above GES target |
| Greater North Sea | Northern North Sea | Water body classification results (high) | 2 |
| Greater North Sea | Southern North Sea | Water body classification results (high) | 0 |
| Greater North Sea | Eastern Channel | Water body classification results (high) | 1 |
| Celtic Seas | Western Channel and Celtic Seas | Water body classification results (high) | 2 |
| Celtic Seas | Irish Sea | Water body classification results (high) | 5 |
| Celtic Seas | Minches and Western Scotland | Water body classification results (high) | 3 |
| Celtic Seas | Scottish Continental Shelf | Water body classification results (high) | 0 |
| Celtic Seas | Atlantic North-West Approaches | Water body classification results (high) | No data |
| Celtic Seas | Shared waters between N. Ireland and Rep of Ireland | Water body classification results (high) | 0 |
| Greater North Sea | Northern North Sea | Water body classification results (good) | 7 |
| Greater North Sea | Southern North Sea | Water body classification results (good) | 4 |
| Greater North Sea | Eastern Channel | Water body classification results (good) | 1 |
| Celtic Seas | Western Channel and Celtic Seas | Water body classification results (good) | 12 |
| Celtic Seas | Irish Sea | Water body classification results (good) | 16 |
| Celtic Seas | Minches and Western Scotland | Water body classification results (good) | 5 |
| Celtic Seas | Scottish Continental Shelf | Water body classification results (good) | 4 |
| Celtic Seas | Atlantic North-West Approaches | Water body classification results (good) | No data |
| Celtic Seas | Shared waters between N. Ireland and Rep of Ireland | Water body classification results (good) | 3 |
| Greater North Sea | Northern North Sea | Water body classification results (moderate) | 0 |
| Greater North Sea | Southern North Sea | Water body classification results (moderate) | 2 |
| Greater North Sea | Eastern Channel | Water body classification results (moderate) | 0 |
| Celtic Seas | Western Channel and Celtic Seas | Water body classification results (moderate) | 3 |
| Celtic Seas | Irish Sea | Water body classification results (moderate) | 7 |
| Celtic Seas | Minches and Western Scotland | Water body classification results (moderate) | 2 |
| Celtic Seas | Scottish Continental Shelf | Water body classification results (moderate) | 0 |
| Celtic Seas | Atlantic North-West Approaches | Water body classification results (moderate) | No data |
| Celtic Seas | Shared waters between N. Ireland and Rep of Ireland | Water body classification results (moderate) | 0 |
| Greater North Sea | Northern North Sea | Offshore assessment results (high) | 28 |
| Greater North Sea | Southern North Sea | Offshore assessment results (high) | 14 |
| Greater North Sea | Eastern Channel | Offshore assessment results (high) | 1 |
| Celtic Seas | Western Channel and Celtic Seas | Offshore assessment results (high) | 0 |
| Celtic Seas | Irish Sea | Offshore assessment results (high) | 2 |
| Celtic Seas | Minches and Western Scotland | Offshore assessment results (high) | No data |
| Celtic Seas | Scottish Continental Shelf | Offshore assessment results (high) | 0 |
| Celtic Seas | Atlantic North-West Approaches | Offshore assessment results (high) | No data |
| Celtic Seas | Shared waters between N. Ireland and Rep of Ireland | Offshore assessment results (high) | No data |
| Greater North Sea | Northern North Sea | Offshore assessment results (good) | 27 |
| Greater North Sea | Southern North Sea | Offshore assessment results (good) | 51 |
| Greater North Sea | Eastern Channel | Offshore assessment results (good) | 1 |
| Celtic Seas | Western Channel and Celtic Seas | Offshore assessment results (good) | 3 |
| Celtic Seas | Irish Sea | Offshore assessment results (good) | 12 |
| Celtic Seas | Minches and Western Scotland | Offshore assessment results (good) | No data |
| Celtic Seas | Scottish Continental Shelf | Offshore assessment results (good) | 3 |
| Celtic Seas | Atlantic North-West Approaches | Offshore assessment results (good) | No data |
| Celtic Seas | Shared waters between N. Ireland and Rep of Ireland | Offshore assessment results (good) | No data |
| Greater North Sea | Northern North Sea | Offshore assessment results (moderate) | 1 |
| Greater North Sea | Southern North Sea | Offshore assessment results (moderate) | 28 |
| Greater North Sea | Eastern Channel | Offshore assessment results (moderate) | 0 |
| Celtic Seas | Western Channel and Celtic Seas | Offshore assessment results (moderate) | 0 |
| Celtic Seas | Irish Sea | Offshore assessment results (moderate) | 5 |
| Celtic Seas | Minches and Western Scotland | Offshore assessment results (moderate) | No data |
| Celtic Seas | Scottish Continental Shelf | Offshore assessment results (moderate) | 0 |
| Celtic Seas | Atlantic North-West Approaches | Offshore assessment results (moderate) | No data |
| Celtic Seas | Shared waters between N. Ireland and Rep of Ireland | Offshore assessment results (moderate) | No data |
| Greater North Sea | Northern North Sea | Offshore assessment results (poor) | 0 |
| Greater North Sea | Southern North Sea | Offshore assessment results (poor) | 1 |
| Greater North Sea | Eastern Channel | Offshore assessment results (poor) | 0 |
| Celtic Seas | Western Channel and Celtic Seas | Offshore assessment results (poor) | 0 |
| Celtic Seas | Irish Sea | Offshore assessment results (poor) | 0 |
| Celtic Seas | Minches and Western Scotland | Offshore assessment results (poor) | No data |
| Celtic Seas | Scottish Continental Shelf | Offshore assessment results (poor) | 0 |
| Celtic Seas | Atlantic North-West Approaches | Offshore assessment results (poor) | No data |
| Celtic Seas | Shared waters between N. Ireland and Rep of Ireland | Offshore assessment results (poor) | No data |