| Number seen/Abundance | Date | Location | Comments | Recorded by |
|---|---|---|---|---|
| P | 2003-07-18 | Silecroft, Cumbria |
A number seen stranded in the outgoing tide. | Lynette Gilligan |
| 1 | 2003-07-11 | Constantine Bay - rocky shore with sandy inlets & gullies |
Dead, almost fully transparent. Seen in a pool. | |
| 1 | 2004-07-28 | Porth Ysgarden Off Porth Ysgarden, Tudweiliog |
1 mile offshore. amongst large number of Lions Mane jellyfish or Cyanea lamarckii ? | Pete Wilkinson |
| 4 | 2004-08-01 | Wembury Bay Wembury Bay (NT) Plymouth, Devon |
On surface and deep water | Nick Farman |
| 1 | 2002-08-04 | Wembury Bay Wembury Bay (NT) Plymouth, Devon |
On surface and deep water | Nick Farman |
| 5 | 2004-08-06 | Wembury Bay Wembury Bay (NT) Plymouth, Devon |
Deep water and shoreline | Nick Farman |
| Very common | 2004-08-14 | Padstow Near Padstow - rocks at edge of sandy beach and mouth of River Camel. |
Some washed onto beach, some in shallow water over sand. | Jack Sewell |
| 1 | 2004-08-01 | South Milton Sands South Milton Sands, nr Thurlestone |
Seen 20ft from beach on own bathing around. 6ft in lenght with tentacles. | Martin Frederico |
| 1 | 2004-08-09 | Looe River Looe River, Cornwall |
Seen swimming in river. | Tom Rogers |
| 1 | 2004-09-25 | Porthtowan Porthtowan beach |
decayed on strandline, approx 15 cm diameter | Wendy Henwood |
| 1 | 2004-12-05 | camel estuary 1 mile north of Padstow. Sandy beach along estuary. |
washed up on beach very recently. Still in wash zone | Jack Sewell |
| 1 | 2004-08-08 | Donegal Bay North east coast of Donegal Bay, near Killybegs harbour. |
open water near the shore | Malcolm Houston |
| 1 | 2005-06-29 | Kingswear marina, Dartmouth, Devon |
in marina | Judith Oakley |
| 1 | 2005-07-24 | Portwrinkle bay, Cornwall |
in sea but dead | Judith Oakley |
| 3 | 2005-08-03 | Berry Head, Brixham |
medium sized individuals, about 20cm across | Dan Lear |
| 1 | 2005-08-02 | Far pontoon, Queen Anne's Battery marina |
in marina | Judith Oakley |
| 1 | 2005-08-02 | Far pontoon, Queen Anne's Battery marina |
in marina | Judith Oakley |
| 5 | 2005-07-14 | Ilfracombe Ilfracombe Harbour, Devon |
Only very small specimens seen | Charlotte Bettle |
| 5 | 2005-07-14 | Ilfracombe Ilfracombe Harbour, Devon |
Only very small specimens seen | Charlotte Bettle |
| 1 | 2005-08-08 | Blackstone Rocks Blackstone rocks, Wembury beach |
seen whilst swimming early evening, by rocks on right of beach, bell approx 100-110mm diameter. | Cat Ridout |
| 2 | 2005-08-12 | Blackstone Rocks Blackstone Rocks, Wembury Beach, Plymouth |
Both alive and approx 100m from beach, spotted about 2hrs after low tide. approx bell diameter 1x 130mm and 1x110 mm | Cat Ridout |
| 4 | 2005-08-19 | Blackstone Rocks Blackstone Rocks, Wembury Beach, Plymouth |
One washed up on beach approx bell diameter 10cm, 1 washed up on rocks, one in rockpool and one in sea at swimming depth - not sure of distance off shore exactly, stung swimmer. | Cat Ridout |
| 1 | 2005-08-17 | Weymouth beach opposite Jubilee Clock |
Washed up on the beach in a pool left by the tide. It was about 11cm in diameter. | David O'Daly |
| around 30 | 2005-08-30 | Bedruthan Steps, Cornwall |
Stranded and mostly broken up. | Guy Baker |
| one | 2006-01-20 | Squires Gate Beach at Squires Gate between Blackpool and St. Annes |
Small, about 8 inches diameter. Washed up dead. | Pamela Irving |
| 1 | 2006-07-25 | Between Salcombe Harbour and Start Point |
Alive swimming in open sea | Judith Oakley |
| 1 | 2006-07-25 | Jennycliff Beach, Plymouth |
Stranded dead on shore | Judith Oakley |
| 1 | Dead in stream 20 cm diameter | |||
| 6 | All swimming in marina, one very large specimen. | |||
| 2 | Alive and swimming. Approx One 150mm Dia. other 200mm Dia | |||
| 2 | Both dead and stranded on rocks in rockpools, neither had many tentacles | |||
| 15 | 2006-09-09 | Sandymouth bay Sandymouth bay North Cornwall |
Washed up on beach many had hyperia galba living inside | Steve Trewhella |
| 16 | 2006-09-07 | Sandymouth bay Sandymouth bay. North Cornwall (nr Bude) |
Washed up on shore | Steve Trewhella |
| 1 | 2007-07-27 | kimmeridge beach |
small chunk/dead | Steve Trewhella |
| 2 | Dead | |||
| two | 2007-08-07 | Babbacombe Bay, Torquay |
one midwater - one on seabed | Paul Newland |
| 2007-09-04 | Seen floating alive in a shallow stream between sand banks during low tide. Bell diameter approx 20-25cm. | Ryan Goodall | ||
| 3 | 2008-07-12 | County Mayo Beach between Claggan Point and Corraun Point, Blacksod Bay, County Mayo, ROI |
All dead, adults | Graham McElwaine |
| 2 | 2008-07-30 | Shoreham Beach, opposite Widewater Lagoon. |
one alive one dead, in shallow water (1m deep) off shore. | Janine Barden |
| 1 | 2009-05-23 | Zetland Pier Small pier and surrounding shore diving area. Rocky/sandy bottom which has about 7m of water at high tide and 2m at low. |
Float off slip (open water). About 10cm diameter. | Joe Bater |
| 10000000 | 2009-06-09 | Kocaeli Turkey Gulf of Izmit, Kocaeli Turkey |
This is not a species we used to see in our waters ( we have never seen it before actually),they are all around in the Izmit bay last month, and increasing everyday. Could it be related to marine pollution or what? Some Experts say they have been carried by the overseas vessel\'s and released from the ballasts, and some says it is Just related to sea pollution... | Ercan Poyraz |
| 1 | 2009-06-27 | Freshwater bay, Isle of Wight Shallow waters with stoney beaches and surrounding cliffs |
Seen swimming in the shallows around mid-morning. Approximately 8-10 in diameter with 15-20 long tentacles. My snorkeling buddy actually swam into it head first but luckily was not stung by it! | Matt Dearden |
| 1 | 2009-06-27 | Freshwater Bay, Isle of Wight Freshwater Bay, Isle of Wight. |
Highly active. At the east end of the bay, about twenty metres out from the cliffs, in shallow water over a rock shelf. | Ian Ferguson |
| 1 | 2009-07-03 | Goodrington Sands, Paignton North Sands |
Dead on beach. Approx. 7in diameter bell. | Caroline Northcott |
| 1 | 2009-07-30 | Poppit Sands Poppit Sands at the mouth of the River Teifi near Cardigan, Ceredigion |
Seen in the shallows on the shore. Definately the Compass Jellyfish - have photo that clearly shows the radial markings around a central circle and have cross referenced with jellyfish images on-line. | Pete Kent |
| 20 | 2009-08-13 | Lough Swilly, Co. Donegal, Eire Fahan Marina, Lough Swilly, and in Lough Swilly crossing the Inch Flats towards Rathmullan. Multiple sightings of Compass Jellyfish |
Free moving in marina and in open water, at or near surface in tidal waters with depths from one metre to 20 metres. Tide was flowing out at the time. | Robert Parke |
| 3 | 2010-06-12 | Berry Head, Brixham, Devon deepish water off rocks on coastline |
seen swimming close to rocks | heidi blakesley |
| 2 | 2010-08-10 | llangranog mid wales coast |
compass jellyfish caught at high tide from beach with nets | andrew sigrist |
| 1 | 05/08/2010 | Bigbury - on - Sea In rock pools by beach at low tide |
In rockpool | Jo Foster |
| 10 | 30/06/2011 | Bayble, isle of Lewis Bayble bay Approx 1km north of the bay and approx 100m out to sea. |
floating around kayaks, largest approx 20cm in diameter, smaller ones approx 10cm. | Lucy Blake |
| 100 | 26/07/2011 | County Kerry Ring of Beara, Ring of Kerry and Dingle peninsula |
Numerous in water and washed up on beach, in one section of beach (Coss Strand, Kenmare) counted 86 before giving up. | stephen harrison |
| 2 | 06/08/2011 | Batten Bay Rocky shore at Mt Batten |
In rockpool and on beach, one may have been dead already. | Marlin Beach Rangers |
| 50-100 | 10/08/2011 | Bangor A beach near Bangor pier |
Many washed up on the shore, a few seen pulsating along the Menai strait. Sizes range from 10cm diameter to 25cm. | Rhys Morgan |