A comprehensive update on the distribution of lionfish (Pterois miles) in the Mediterranean Sea was conducted by documenting 16 newly confirmed photographic records from southern Italy, collected through a national alert campaign supported by three Italian ministries. The campaign, titled Attenti a quei 4! (“Beware of those 4!”), also led to the detection of other invasive species, although lionfish were the most frequently re...

Within the Svalbard archipelago, Kongsfjorden is an important marine ecosystem that is recognised as one of the main representative Arctic glacial fjords. Prokaryotic organisms are key drivers of important ecological processes such as carbon fluxes, nutrient mineralisation, and energy transfer, as well as sentinels of environmental pollution, especially in sediments, that are a repository of contaminants. In some areas of the...