We are now facing a real tropicalization of the Mediterranean Sea which is leading to a too rapid and rapid change of this ecosystem, so we are increasingly witnessing an invasion of alien species, explosions of mucilage and toxic algae, a decrease in native fish species, a reduction in fishing and catches and, as can be seen from these images, a proliferation of jellyfish ...

Also this summer we are witnessing the invasion of the Mnemiopsis leidyi or Sea walnut. This year we are in early July and the sea water is slowly warming up as always in summer. Punctually after a short and intense sea storm we witness an invasion of jellyfish, plastic, tree trunks and branches, various floating debris and as now every year also the Mnemiopsis leidyi, the now infamous Sea walnut. ...

Lobsters are increasingly rare. There are many reasons: a larval life that lasts about 20 years, overfishing, the change of one's habitat due to the usual causes, warming of the waters, tropicalization of the Mediterranean Sea, etc. etc. In this isolated patch at about 52/54 meters deep we found them and some, as can be seen from the video, even large ones.

This video made on August 20, 2019 documents the invasion of Mnemiopsis leidyi ...