How are our jellyfish really doing? That's what researchers at the University of Gothenburg want to find out by getting the general public to help, reports Vetenskapsradion in Sveriges Radio.
According to the researchers, who hope that bathers and others will send in their jellyfish reports via, for example, Artportalen, there is a concern about the status of the animal group.
Among other things, moon jellyfish with more than four rings occur. Jellyfish also seem to die prematurely.
I'm quite worried, actually, because they don't seem to be doing well. They dissolve and start swimming strangely already in early June, says marine biologist Christin Appelqvist to SR.
They should actually, in this free-swimming stage, be until September-October. They should eat and reproduce, but they die already now.