Maryport Harbour

Site of Special Scientific Interest · 54.7140, -3.5084

Condition (Natural England)

Unfavourable Recovering (2)
UnitFeatureConditionArea (ha)Assessed
NY029363 Unfavourable Recovering 3.61 2015-11-24
NY030362 Unfavourable Recovering 3.61 2015-11-24

Climate exposure

This is about exposure to a nationwide pressure this habitat type carries — not a verdict on this site's own management.

Coastal

Coastal habitats are exposed to sea-level rise and storm erosion. Where hard sea defences sit behind them, there's nowhere landward to retreat to — a squeeze that keeps compressing the habitat no matter how well it's managed.

Geology & landscape

Landscape processes: Coastal

Description

Description This site lies on the west coast of Cumbria between the town of Maryport and the sea wall, adjacent to the harbour. It comprises two discrete blocks of grassland and ruderal vegetation and is the only Cumbria locality for the national rare purple or yarrow broomrape Orobanche purpurea. The established grassland on the sea wall adjacent to Stenhouse Dock is dominated by a range of grasses and herbs including false oat grass Arrhenatherum elatius, Yorkshire fog Holcus lanatus, red fescue, cock's foot, common rest harrow Ononis repens, yarrow, common knapweed and yellow rattle. Two Cumbrian rareties, common broomrape Orobanche minor and pyramidal orchid Anacamptis pyramidalis are important constituents of this grassland. The land south of Elizabeth Dock by contrast supports a much more open ruderal community which has evolved on an artificial substrate of coal washings, spoil, slag and soil. Herbs dominate the sward and grasses are generally uncommon. Dominant species include rest harrow, common knapweed Centaurea nigra, kidney vetch Anthyllis vulneraria, wild carrot Daucus carota, wild mignonette Reseda lutea, yellow rattle Rhinanthus minor and the clovers Trifolium dubium and Trifolium repens. Yarrow Achillea millefolium is present throughout the sward and it is upon this plant that the nationally rare purple broomrape is parasitic. Maryport Harbour provides the most northerly known site for this species which otherwise has a southern distribution. This is also an important site for the small blue butterfly because of the abundance of its food plant, kidney vetch. The small blue has suffered a decline in several parts of the country and in Cumbria is now restricted to only three sites.

Species mentioned

English name
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Latin name
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IUCN / Red List Type Family
false oat grass Arrhenatherum elatius LC grass poaceae
Yorkshire fog Holcus lanatus LC grass poaceae
yarrow Achillea millefolium LC herb asteraceae
pyramidal orchid Anacamptis pyramidalis LC herb orchidaceae
lady's fingers (kidney vetch) Anthyllis vulneraria NT herb fabaceae
black knapweed Centaurea nigra LC herb asteraceae
wild carrot Daucus carota LC herb apiaceae
common rest-harrow Ononis repens VU herb fabaceae
common broomrape Orobanche minor LC herb orobanchaceae
purple broomrape Orobanche purpurea Not listed in GB list herb orobanchaceae
wild mignonette Reseda lutea NT herb resedaceae
yellow-rattle Rhinanthus minor DD herb orobanchaceae
lesser trefoil Trifolium dubium LC herb fabaceae
white clover Trifolium repens LC herb fabaceae