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.
This account could have been included in with the account from Marazion Harbour as the two sites are very close to one another, being separated by a single small rock outcrop, as seen in the image. The rock outcrop ends at the low water mark. The two sites are however quite different, at Marazion Harbour in March 2014 the algae Chondrus crispus, Carragheen or Irish moss, was the predominant and most favoured weed; whereas a short distance away at Top Tieb, the algae Gracilaria gracilis, Slender wart weed, was found to be the most favoured and predominant algae in pools. There were quite limited amounts of Chondrus crispus at Top Tieb, especially the further east one travelled, and because of increased exposure. Gracilaria gracilis favoring sandy condition, which was evident across the area. The two sites can therefore be separated in relation to habitat and level of exposure.
On visiting the site in March 2014 the site was found to have a very high concentration of stauromedusae, especially juvenile specimens of Calvadosia cruxmelitensis.
Marazion Harbour was surveyed on the 18.03.14, with Top Tieb surveyed 19.03.14. The first record on the 18th and last record on the 19th are used here to give a rough distance of the extent of the bloom. The bloom has been estimated to cover approximately 282m of shore. It could have extended over 400m.
Site and habitat images
Lowershore pool containing stauromedusae 19.03.14
Twelve stauromedusae in one small pool 19.03.14
View across lowershore to the Mount 19.03.04
Top Tieb lowershore from Marazion Harbour 19.03.14
Top Tieb, Marazion, records. SW 5193 3040.
19.03.14. Top Tieb, Marazion, Cornwall. 61 specimens. 45 Calvadosia cruxmelitensis, 15 Haliclystus octoradiatus and 1 Craterolophus convolvulus. Lowershore; mostly on Gracilaria gracilis, in stoney and sandy bottomed pools.
Craterolophus convolvulus 1
Juvenile on Gracilaria gracilis in pool at SW 52206 30434.
Calvadosia cruxmelitensis 1
Specimen on Gracilaria gracilis in pool at SW 52081 30444.
Calvadosia cruxmelitensis 2
Specimen on Gracilaria gracilis in pool at SW 52086 30440.
Calvadosia cruxmelitensis 3
Specimen on Gracilaria gracilis in pool at SW 52086 30440.
Calvadosia cruxmelitensis 4
Specimen on Gracilaria gracilis in pool at SW 52154 30433.
Calvadosia cruxmelitensis 5
Specimen on Gracilaria gracilis in pool at SW 52154 30438.
Calvadosia cruxmelitensis 6
Specimen on Gracilaria gracilis in pool at SW 52157 30439.
Calvadosia cruxmelitensis 7
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Calvadosia cruxmelitensis 8
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Calvadosia cruxmelitensis 9
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Calvadosia cruxmelitensis 10
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Calvadosia cruxmelitensis 11
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Calvadosia cruxmelitensis 12
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Calvadosia cruxmelitensis 13
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Calvadosia cruxmelitensis 14
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Calvadosia cruxmelitensis 15
Specimen on Gracilaria gracilis in pool at SW 52160 30436.
Calvadosia cruxmelitensis 16
Specimen on Gracilaria gracilis in pool at SW 52160 30436.
Calvadosia cruxmelitensis 17
Specimen on Gracilaria gracilis in pool at SW 52160 30436.
Calvadosia cruxmelitensis 18
Specimen on Gracilaria gracilis in pool at SW 52163 30437.
Calvadosia cruxmelitensis 19
Specimen on Gracilaria gracilis in pool at SW 52163 30437.
Calvadosia cruxmelitensis 20
Specimen on Gracilaria gracilis in pool at SW 52163 30437.
Calvadosia cruxmelitensis 21
Specimen in pool at SW 52166 30437.
Calvadosia cruxmelitensis 22
Specimen on Gracilaria gracilis in pool at SW 52166 30437.
Calvadosia cruxmelitensis 23
Specimen on Gracilaria gracilis in pool at SW 52167 30438.
Calvadosia cruxmelitensis 24
Specimen on Gracilaria gracilis in pool at SW 52164 30446.
Calvadosia cruxmelitensis 25
Specimen on Gracilaria gracilis in pool at SW 52164 30446.
Calvadosia cruxmelitensis 26
Specimen on Gracilaria gracilis in pool at SW 52206 30434.
Calvadosia cruxmelitensis 27
Specimen on Gracilaria gracilis in pool at SW 52206 30434.
Calvadosia cruxmelitensis 28
Specimen on Gracilaria gracilis in pool at SW 52206 30434.
Calvadosia cruxmelitensis 29
Specimen on Gracilaria gracilis in pool at SW 52206 30434.
Calvadosia cruxmelitensis 30
Specimen on Gracilaria gracilis in pool at SW 52200 30451.
Calvadosia cruxmelitensis 31
Specimen on Gracilaria gracilis in pool at SW 52200 30451.
Calvadosia cruxmelitensis 32
Specimen on Gracilaria gracilis in pool at SW 52200 30451.
Calvadosia cruxmelitensis 33
Specimen on Gracilaria gracilis in pool at SW 52200 30451.
Calvadosia cruxmelitensis 34
Specimen on Gracilaria gracilis in pool at SW 52198 30450.
Calvadosia cruxmelitensis 35
Specimen on Gracilaria gracilis in pool at SW 52198 30450.
Calvadosia cruxmelitensis 36
Specimen on Gracilaria gracilis in pool at SW 52197 30451.
Calvadosia cruxmelitensis 37
Specimen on Gracilaria gracilis in pool at SW 52197 30451.
Calvadosia cruxmelitensis 38
Specimen on Gracilaria gracilis in pool at SW 52197 30453.
Calvadosia cruxmelitensis 39
Specimen on Gracilaria gracilis in pool at SW 52197 30453.
Calvadosia cruxmelitensis 40
Specimen on Gracilaria gracilis in pool at SW 52197 30453.
Calvadosia cruxmelitensis 41
Specimen on Gracilaria gracilis in pool at SW 52197 30453.
Calvadosia cruxmelitensis 42
Specimen on Gracilaria gracilis in pool at SW 52197 30453.
Calvadosia cruxmelitensis 43
Specimen on Gracilaria gracilis in pool at SW 52197 30453.
Calvadosia cruxmelitensis 44
Pale pink specimen in pool on G. gracilis SW 52197 30453.
Calvadosia cruxmelitensis 45
Specimen on Gracilaria gracilis in pool at SW 52197 30453.
Haliclystus octoradiatus 1
Specimen on Gracilaria gracilis in pool at SW 52078 30450.
Haliclystus octoradiatus 2
On Gracilaria gracilis in pool at SW 52082 30443.
Haliclystus octoradiatus 3
Juvenile on Gracilaria gracilis in pool at SW 52156 30439.
Haliclystus octoradiatus 4
Specimen on Gracilaria gracilis in pool at SW 52156 30439.
Haliclystus octoradiatus 5
Specimen in pool at SW 52166 30437.
Haliclystus octoradiatus 6
Specimen on Gracilaria gracilis in pool at SW 52166 30437.
Haliclystus octoradiatus 7
Specimen on Gracilaria gracilis in pool at SW 52166 30437.
Haliclystus octoradiatus 8
Specimen on Gracilaria gracilis in pool at SW 52206 30434.
Haliclystus octoradiatus 9
Juvenile on Gracilaria gracilis in pool at SW 52206 30434.
Haliclystus octoradiatus 10
Specimen on Gracilaria gracilis in pool at SW 52206 30434.
Haliclystus octoradiatus 11
Specimen on Chondrus crispus in pool at SW 52206 30434.
Haliclystus octoradiatus 12
Specimen on Gracilaria gracilis in pool at SW 52200 30451.
Haliclystus octoradiatus 13
Specimen on Gracilaria gracilis in pool at SW 52198 30450.
Haliclystus octoradiatus 14
Juvenile on Gracilaria gracilis in pool at SW 52197 30451.
Haliclystus octoradiatus 15
Specimen on Gracilaria gracilis in pool at SW 52197 30453.
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.
