Swimmers and beach visitors along the Suffolk coast have been issued a warning to remain vigilant following reports of compass jellyfish sightings. These distinctive creatures, which are native to UK waters and commonly observed during the summer months, have recently been seen in areas including Felixstowe, Southwold, and Aldeburgh.
Dr Adam Kennerley, a marine scientist based in Lowestoft, explained that compass jellyfish can grow to approximately 30cm across and possess long, trailing tentacles used to capture small fish and plankton. He likened them to 'sea nettles,' a descriptor that hints at their stinging capability. Dr Kennerley strongly advised the public against touching them, noting that while stings can be quite painful, the severity of symptoms can vary between individuals. Most people describe the sensation as a sharp burning or nettle-like sting, with symptoms typically subsiding within a few hours.
It is thought that the recent spell of high temperatures may have encouraged the jellyfish to move closer to the shore. However, Dr Kennerley reassured the public that there is no need for panic. Instead, he recommended maintaining a watchful eye and actively avoiding any contact with the jellyfish while in the water. He also encouraged people to appreciate their presence from a safe distance, highlighting their unique beauty.
Compass jellyfish are easily identifiable due to their striking brown and orange colouration, complemented by V-shaped markings across their bodies that resemble the points of a compass, hence their name. Dr Kennerley emphasised that while they should be enjoyed visually, direct interaction should be avoided to prevent stings.
In the event of a sting, basic first aid is recommended. The initial step should be to rinse the affected area with cold seawater to help cool it down. Any remaining tentacle fragments should be carefully removed without direct skin contact. If the stinging sensation persists, Dr Kennerley advised applying warm water, rather than cold, to alleviate the discomfort. These simple measures can help manage the immediate effects of a compass jellyfish sting.