Rhopilema nomadica, is a species of jellyfish that was previously distributed only to the Indian and Pacific Oceans. Through the Suez Canal, this species arrived in the waters of the Mediterranean in the 1970s, while in the Greek Seas it was first recorded in 2006.

We live in a time where the biodiversity of our oceans is changing, due to climate change, human interventions such as the formation and widening of the Suez Canal, but also due to overfishing, which ultimately creates gaps in ecosystems and favourable conditions for the colonisation and spread of new species.

Rhopilema nomadica jellyfish is a species that has created problems due to population dependence in marine regions of the southern Mediterranean, e.g. in Israel.

It is important that we finally start addressing the factors that cause and strengthen these population explosions, instead of wasting so much publicity on the topic every summer season, to then be forgotten a few weeks later, and remembered again the following summer.