Important Plant Areas for algae - Natural History Museum

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