Important Plant Areas for algae - Natural History Museum

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17 Hayling Island/ Solent/ Portsmouth, Hampshire 34 Lilstock, Somerset 35 Walney Island, South Cumbria, Cumberland (might be deleted) WALES 45 The Inland Sea, Caernarvon 47 Pennar Gut, Caernarvon SCOTLAND 51 Loch Ryan/ Stranraer, Wigtown 57 Coll, Inner Hebrides 61 Rockall, Outer Hebrides 63 St. Kilda, Outer Hebrides SU683017 (centre of Langstone Harbour) Part of SAC D An area of consolidated boulder gravel, saltmarshes, seagrass and manmade habitats including a large marina. The site is potentially threatened by introduced species. An unusual diversity of algae occurs in the various harbours. Algal epiphytes in the marina. Alien algae were first recorded in the Solent area: Sargassum muticum, Undaria pinnatifida, Grateloupia turuturu, Solieria chordalis, Sarcodiotheca gaudichaudii. ST1644 SSSI D A series of Jurassic limestone ledges. Reasonably diverse flora given location up the Bristol Channel. Site of recent research into green endophytes of Chondrus crispus (Bown et al., 2003). SD184665 (centre of Walney Island) SSSI D A large rock in vast area of mud. There are historical records. It is the type locality for Dictyota dichotoma (Hudson) J.V. Lamouroux. There are Zostera communities on one side and Sabellaria communities on other side. There are very rich algal communities on scars nearby, e.g. Roa Island. SH275795 SSSI D The Inland Sea is a permanent water body between Anglesey and Holy Island. It has two restricted man-made in and out flow points and never dries to a channel at low water. The shores of the Inland Sea are a mixture of sheltered bedrock, mud and saltmarsh. It appears to be a site with southern species, e.g. Griffithsia devoniensis, Gracilaria bursa-pastoris (the most northern record for this species). SM943030 SAC D Exceptionally rare habitats supporting particularly unusual biotope combinations and/or species assemblages; where the actual biotopes or assemblages may not in themselves be of the overriding importance, but the physical condition which they represent is the primary importance. NX056662 NX06-61 NM200570 D? A site with a long history of study and unusual assemblages. It is reported to be the most northerly record for Spyridia filamentosa in the UK. 57°35’48’’N, SSSI D? Isolated granite rock in sea. There are few collections although some at 13°41’19’’W BM. Alaria esculenta has been reported from 33 m depth. NF090990 SAC, D An isolated site with a good range of habitats from sheltered to exposed. It World is reported to be the most northern limit of Carpomitra costata. The site Heritage appears to be understudied for the algae. Site Chondria coerulescens 64 Dunvegan, Skye NG255468 SAC D Lithothamnion corallioides (qv note in Irvine & 25
65 Loch na h'Airde, NG393163 D This site has unusual algal assemblages. Skye 66 Ord, Skye NG616132 D This site has unusual algal assemblages. 69 Stenness/Skaill, Kirkwall, Orkney SAC This area has a good diversity of habitats, communities and species. Loch Stenness is an inland tidal, saline lake with unusual algal communities. Skaill has a long history of study with good historical collections to early 19th C. There are collections from Kirkwall, but the site has changed and some habitats are lost. Fucus distichus is around the southern end of its range here. 70 Otterswick, HY690428 D The site has unusual algal assemblage. There are old collections in BM. Sanday, Orkney 72 Aberdeen NJ7964- NJ7262 73 Elie to Anstruther, Fife Coast between NO491001- NO564036 D This area has not been localised to any particular site. It covers Gardenstown in the north to the tidal limit of the North Esk estuary in the south. There are historical records (see Wilkinson, 1979). D An area of rocky reef, pool and lagoons. There are very good historical collections in mid to late 19 th C. Comparisons of recent and old studies suggest that the flora is stable and that the diversity of species is similar to those that were found in Edinburgh in the past but are now lost. 74 Isle of May, Fife NT655994 SAC D High A site with a good diversity of habitats. 76 Lamberton Beach, Scottish Borders NT9758 D Rocky shore site with a long history of study. NORTHERN IRELAND 79 Rathlin Island, Co. Antrim 80 Barr Hall Bay, Co. Down 81 Kearney Point, Co. Down SAC = D133518 J6146 J6451 SAC; SSSI/ ASSI; NNR High An area of intertidal and subtidal rock, including rocky reefs with caves. There is Zostera marina. Chamberlain, 1994) Antithamnionella floccosa Prasiola furfuracea Compsothamnion gracillimum Cruoria cruoriaeformis Desmarestia dresnayi Pringsheimiella scutata Rhodymenia delicatula Schmitzia hiscockiana 26
Page 2 and 3: CONTENTS 1.0 SUMMARY ..............
Page 4 and 5: LIST OF ABBREVIATIONS AONB Area of
Page 6 and 7: 2.0 IMPORTANT PLANT AREAS Juliet Br
Page 8 and 9: 3.2 UK ALGAL DIVERSITY Hardy & Guir
Page 10 and 11: inventory when more data become ava
Page 12 and 13: vii) Threatened or rare marine alga
Page 14 and 15: Table 4.1 Sites nominated as Europe
Page 16 and 17: 7 Great Yarmouth, Norfolk 9 Thames
Page 18 and 19: 22 Kimmeridge Ledges 23 Weymouth, D
Page 20 and 21: Pringsheimiella scutata 33 Ilfracom
Page 22 and 23: 52 Lamlash Bay, Arran, Argyll NS030
Page 24 and 25: 82 Strangford J589496 Lough, Co. Do
Page 28 and 29: 4.32 Determining a list of ‘rare
Page 30 and 31: specimen in specimen in BM BM Litho
Page 32 and 33: Hincksia secunda (Kützing) P.C. Si
Page 34 and 35: Table 4.5 Assessment of the proport
Page 36 and 37: 4.4 DISCUSSION This is the first ti
Page 38 and 39: 4.5 RECOMMENDATIONS • A number of
Page 40 and 41: Information from report on UK stone
Page 42 and 43: 5.41 Criterion A - threatened speci
Page 44 and 45: Table 5.4 Sites nominated as Europe
Page 46 and 47: Table 5.6 Potential UK IPAs (areas/
Page 48 and 49: 6.0 ACKNOWLEDGEMENTS We wish to exp
Page 50 and 51: 8.0 APPENDIX - FRESHWATER ALGAE 8.1
Page 52 and 53: Cosmarium logiense 0 + Cosmarium ni
Page 54 and 55: Cosmarium phaseolus elevatum, minus
Page 56 and 57: Staurastrum elongatum 4 + Staurastr
Page 58 and 59: Cosmarium boeckii 36 + Cosmarium br
Page 60 and 61: Staurastrum spongiosum perbifidum 1
Page 62 and 63: Records contact: David Williamson;
Page 64 and 65: Grid ref: NY351011 Status: unknown
Page 66 and 67: No. of potential UK Red List desmid
Page 68 and 69: published (Duthie, 1965) hence its
Page 70 and 71: Site description A small freshwater
Page 72 and 73: Status: Ownership: Qualifying crite
Page 74 and 75: 39. Wicken Fen, Cambrideshire Grid
Page 76 and 77:
9. REFERENCES Anand, P.L. 1937. A t
Page 78 and 79:
Jewson, D. H., Lowry, S. F. & Bowen
Page 80 and 81:
Woodhead, N. & Tweed, R.D. 1954. Th
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Important Plant Areas for algae - Natural History Museum

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