STAUROMEDUSAE UK

An online guide to the Stalked jellyfish (Stauromedusae) found
around the coastal waters of the United Kingdom and Ireland.
Includes notes on their identification, and where and how to find them.

Site profile for The Greeb, Perranuthnoe, Cornwall.
The Greeb, OS Grid. Ref. SW 5334 2929, is a long rock outcrop which extends in a south-westerly direction into Mounts Bay. It is situated approximately half way between St. Michael's Mount and Cudden Point, and so falls within the proposed Marine Conservation Zone boundary. The profile here also includes the National Trust's Boat Cove.

Boat Cove consists of a small but narrow inlet that lies between Basore Point and The Greeb. The reef east of Boat Cove and The Greeb is lower than the surrounding rock outcrops, and has more pools. One series of interconnecting pools can be followed down the shore to the start of The Greeb. There are quite a few suitable algal species within the pools, species include Chondrus crispus, Corallina officinalis, Sargassum muticum, Calliblepharis jubata, Gastroclonium ovatum, Cladostephus spongiosus and Ceramium species. The pools at this site are very exposed, it appears that The Greeb has to a certain extent helped reduce wave impact in specific areas of the site and helped protect intertidal fauna and flora. The algae here was in a reasonable state when surveyed after all the winter 2013/14 storms.

This site, distant view of area surveyed, could be a good site to search in May / June for Haliclystus auricula, and later in July / August for Depastrum cyathiforme because of the rocky nature of the site and the local currents.

Site and habitat images

The Greeb and Cudden Point from St. Michael's Mount
The Greeb from Maen-du Point 13.11.10
The Greeb 13.11.10 -1
The Greeb 09.10.10 -1
The Greeb 09.10.10 -2
The Greeb 09.10.10 -3
Boat Cove and Basore Point 09.10.10 -1
Boat Cove and Basore Point 09.10.10 -2
Boat Cove and Basore Point 09.10.10 -3

The Greeb and Boat Cove records SW 5334 2929.

15.03.14. 20 specimens, 18 Haliclystus octoradiatus and 2 juvenile Calvadosia cruxmelitensis, intertidally on the area of shore between The Greeb and Boat Cove, but mostly in pools that run down the shore before the higher rock outcrop to the east, the interconnecting pools that run down the shore inline with The Greeb itself. Bright sunny day, high pressure. 10.49am low water. 1.1m low. Ref. Cornish Coast tide times 2014. Record by David Fenwick.

Calvadosia cruxmelitensis 1
Juvenile specimen on Chondrus crispus. SW 53330 29289.

Calvadosia cruxmelitensis 2
Juvenile specimen on Chondrus crispus. SW 53312 29385.

Haliclystus octoradiatus 1
Specimen on Bifurcaria bifurcata in pool at SW 53353 29313.

Haliclystus octoradiatus 2
Specimen on Chondrus crispus in pool at SW 53335 29296.

Haliclystus octoradiatus 3
Specimen on Chondrus crispus in pool at SW 53335 29296.

Haliclystus octoradiatus 4
Specimen on Chondrus crispus in pool at SW 53334 29292.

Haliclystus octoradiatus 5
Specimen on Chondrus crispus in pool at SW 53330 29289.

Haliclystus octoradiatus 6
Specimen on Chondrus crispus in pool at SW 53330 29289.

Haliclystus octoradiatus 7
Specimen on Chondrus crispus in pool at SW 53330 29289.

Haliclystus octoradiatus 8
Specimen on Chondrus crispus in pool at SW 53333 29286.

Haliclystus octoradiatus 9
Specimen on Chondrus crispus in pool at SW 53333 29286.

Haliclystus octoradiatus 10
Specimen on Chondrus crispus in pool at SW 53333 29286.

Haliclystus octoradiatus 11
Specimen on Chondrus crispus in pool at SW 53339 29291.

Haliclystus octoradiatus 12
Specimen unusually on Fucus serratus at SW 53339 29293.

Haliclystus octoradiatus 13
Specimen on Chondrus crispus in pool at SW 53305 29332.

Haliclystus octoradiatus 14
Juvenile on Chondrus crispus at SW 53317 29359.

Haliclystus octoradiatus 15
Juvenile on Sargassum muticum at SW 53312 29366.

Haliclystus octoradiatus 16
Juvenile on Chondrus crispus in pool at SW 53318 29369.

Haliclystus octoradiatus 17
Specimen on Chondrus crispus in pool at SW 53312 29385.

Haliclystus octoradiatus 18
Juvenile on Corallina officinalis in pool at SW 53283 29402.

This part of the website is "UNDER CONSTRUCTION", details and text may be unchecked. Adding profiles and records for each site can be quite time consuming, especially during periods of recording.

Stauromedusae Site profile for The Greeb Perranuthnoe Cornwall National Trust uk