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The beauty of the underwater world is that the distribution of life and various species is distributed 360° along the entire water column, even if not exactly uniformly. Marine biologists divide marine life into three macro-categories based on where they live and how they move, or rather into three marine biological categories: Plankton, Nekton and Benthos ...

After about seven years we returned to dive on the wreck of the Duckypoo plane, an excellent US F4 derived from a Lockheed P-38F, shot down and then sunk just off the coast of Cecina (LI), by German anti-aircraft during a reconnaissance in June 1944, during the Second World War. Diving on the Duckypoo wreck intotheblue.it ....

The Dogtooth tuna, Gymnosarda unicolor, also known as white tuna, is a species of pelagic marine fish which belongs to the family Scombridae. The dogtooth tuna can reach a length of 190 to 248 centimetres in males and a weight of 130 kilograms. The average length commonly observed is around 40 to 120 centimetres. They have 12 to 14 dorsal soft rays and 12 to 13 anal soft rays. The lateral line is undulates strongly.

Symbiosis is quite frequent in the underwater world and in recent days we have witnessed one of the most classic forms of symbiosis in our Mediterranean Sea, that between the Hermit Crab (Pagurus bernhardus) and the Hermit Crab Anemone or Actinia (Calliactis parasitica). We are exploring a seabed composed of a coral wall that varies from 46 to 49-50 meters deep ...

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. ...