Large numbers of long, large, furry-looking jellyfish that may grow up to 10 metres in length have been spotted around Malta and Gozo, according to the Conservation Biology Research Group.
Known as the grand siphonophore, the jellyfish’s colonial structure is tapered, resembling a rope which may vary in length between 1 to 10 metres. It may be found close to the water surface and is known to deliver nasty stings.
Like the notorious Portuguese man of war (Physalia physalis), the grand siphonophor is not one organism but actually consists of hundreds of polyps.
Its upper part is very translucent and is composed of a small float and several sets of swimming bells. Below are hundreds of salmon-coloured, specialised and differentiated polyps, serving various purposes including nutrition, reproduction and protection.
This large siphonophore lives in all oceans and in the Mediterranean too. Large numbers are being recorded around the Maltese islands, the conservation group reported.
Jellyfish data are being compiled as part of a collaborative Mediterranean-wide research project coordinated by the Mediterranean Science Commission.
To forward any sighting reports of gelatinous creatures or for any further information, send an e-mail to the national contact person, Adriana Vella, at: JellyWatchMalta@gmail.com.