Dogtooth tuna

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 (75 to 98 in) in males and a weight of 130 kilograms (287 lb) ...

Invasion of the Sea walnut Mnemiopsis leidyi

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 ...

Big herd of Sand steenbras

Sand steenbras (Lithognathus mormyrus) belongs to the class Osteichthyes, subclass Actinopterygii, order Perciformes, suborder Percoidei, family Sparidae. It is a beautiful elegant silver-colored fish with six very dark and highlighted vertical bands and an equal number of narrower and less ...

SOS marine warming

With the arrival of summer the coastal mucilage caused by marine warming promptly returns. Nobody can deny that the warming of our planet Earth is now evident even to those who still harbor doubts and uncertainties. Climate change is present at all levels of our ecosystems: from tropical forests to the oceans. sos riscaldamento dei mari ...

Lined Surgeonfish Acanthurus lineatus

Acanthurus lineatus, the Lined Surgeonfish, is a member of the family Acanthuridae, the surgeonfishes. Other common names include blue banded surgeonfish, blue-lined surgeonfish, clown surgeonfish, pyjama tang, striped surgeonfish, and zebra surgeonfish. This species reaches about 38 centimeters in length. ...

Ricciola – Amberjack

In summer the amberjack (Seriola dumerili) approaches the coast from the open sea where it spends the winter. Both large and small specimens, after reproduction, only think about looking for food by practicing real raids among schools of gregarious fish such as mullet, garfish, crognoli, pilchards and pilchards.....

Blue Crab invasion

Blue Crab, Callinectes sapidus, or Atlantic blue crab, is a species of crab native to the waters of the western Atlantic Ocean and the Gulf of Mexico and introduced internationally. Callinectes sapidus is of considerable culinary and economic importance in the United States, particularly in Louisiana, the Carolinas, the Chesapeake Bay, Delaware and New Jersey ...

Big mediterranean Barrel jellyfish

Big mediterranean Barrel jellyfish, Rhizostoma pulmo, commonly known as the barrel jellyfish, the dustbin-lid jellyfish or the frilly-mouthed jellyfish, is a scyphomedusa  in the family Rizostomatidae. It is found in the northeast Atlantic, and in the Mediterranean sea, Black Sea and Sea of Azov. It is also known from the southern Atlantic off ....

Ferdau's trevally

Blue trevally (Carangoides ferdau), also known as the banded trevally, barred trevally, Ferdau's trevally or Forskaal's jackfish, is a common, widespread species of pelagic marine fish classified in the jack family Carangidae. The blue trevally is distributed throughout the tropical and subtropical waters of the Indo-Pacific and central Pacific regions ...

Basket star in appointment to reproduce

In many years of scuba diving I have never encountered so many Basket star all at once. Surely there are precise reasons to justify this concentration. The reasons can be various, the most logical ones lead me to think that it is an appointment to reproduce and that in these rocks there are optimal conditions, of currents and plankton, ...

Young Yellowmouth barracuda

Young yellowmouth barracuda, Sphyraena viridensis, or yellow barracuda is a predatory ray finned fish from the family Sphyraenidae, the barracudas, which is found in the warmer waters of the western Atlantic Ocean and the Mediterranean Sea. It is often confused with the European barracuda Sphyraena sphyraena. ...

Palelipped surgeonfish

Acanthurus leucocheilus, also known as the Palelipped surgeonfish or the white-spine surgeonfish is a species of tropical fish It is used commercially in aquariums. Is a species of marine ray-finned fish belonging to the family Acanthuridae, the surgeonfishes, unicornfishes or tangs. This fish is found in the Indo-Pacific region. ...

High risk scuba diving

Deep scuba diving using compressed air is definitely to be considered a high-risk dive. All international diving organizations recommend limiting diving with compressed air to -40 meters of depth to avoid incurring what is called nitrogen narcosis. Compressed air is denser as the depth increases, and consequently greater breathing effort is required which could lead to breathlessness ...

Picarel fish Spicara smaris

Spicara smaris, (Zerro in Italy) one of the picarels, is a species of ray-finned fish native to the eastern Atlantic Ocean, the Mediterranean Sea and the Black Sea. It grows to a maximum length of about 20 cm; females are usually smaller than males. Spicara smaris was removed from the family Centracanthidae and placed ...

Noah's Ark seashell

Noah's Ark seashell, Arca noae, is a species of bivalve mollusc in the family Arcidae. It is found in the Mediterranean Sea from low tide mark to a depth of 100 metres. The seashell of Arca noae grows to about 10 cm in length. but the ones we found did not exceed 3, 4 centimeters. ...

Variable-lined fusilier

Variable-lined fusilier, Caesio varilineata, or thin-lined fusilier, is a species of pelagic marine ray-finned fish, a fusilier belonging to the family Caesionidae. It is found in the Indo-Pacific region. Caesio varilineata was first formally described in 1987 by the American ichthyologist Kent E. Carpenter ...

Marine worm Filograna implexa

During an underwater dive in a submerged reef completely colonized by gorgonians of Paramuricea clavata, I came across Filograna implexa. I was at a depth of between 61 and 65 meters. The cliffs of Gorgonie are submerged oases rich in biodiversity; inside them fish, crustaceans, juveniles, ...

Red-tuft Protula

Red-tuft Protula (Protula tubularia) lives throughout the Mediterranean Sea in small tubes at depths that can vary from 10 meters to over 100 meters.It is a very common annelid throughout the Mediterranean and therefore we can easily find it among the Posidonia oceanica ...

Do octopuses grow tentacles again ?

Do octopuses grow tentacles again ? The answer is yes! and in the video we see how this octopus is growing back its three tentacles in front of its eyes. The octopus is both a predator and a prey and it often happens that when fighting groupers, conger eels, moray eels and other predatory fish, ...

Giant Trevally

Giant Trevally (Caranx ignobilis), also known as the lowly trevally, barrier trevally, ronin jack, giant kingfish, or ulua, is a species of large marine fish classified in the jack family Carangidae. The Giant Trevally is distributed throughout the tropical waters of the Indo-Pacific region, with a range stretching from South Africa in the west to Hawaii in the east ...

Great Cormorant

Great Cormorant (Phalacrocorax carbo), (Linnaeus, 1758) is a species of bird in the shag family. It is a large bird with black body and a hook beak. There is however a large variation in size in the wide range of species. Cormorants of various weights have been reported, but the average weight is around 2.6 to 3.7 kg. The length can range from 70 to 102 cm ...

Bigfin reef squid

Bigfin reef Squid, Sepioteuthis lessoniana, commonly known as the glitter squid or oval squid, is a species of loliginid squid. It is one of the three currently recognized species belonging to the genus Sepioteuthis. Studies in 1993, however, have indicated that bigfin reef squids may comprise a cfyptic species complex. ...

Diving near Gorgona island

We planned this scuba dive in the area between Livorno and Gorgona Island. We are over 12 nautical miles from Livorno and about 6 miles from Gorgona, in the Tuscan Archipelago. In this area the seabed rises from over 100 meters deep to 48 metres. It is an area that we know well in the part between 48 and 54 meters deep, ...

School of grey Mullet grazing

Flathead grey mullets  it is a fish able to withstand wide variations in salinity, in fact we find it regularly in marine waters, fresh or brackish waters. Extremely adaptable to all environments; we often find it at the mouths of rivers, in lagoon areas where sea water mixes with fresh water from the hinterland and inside bays and harbors. ...

Garfish

Garfish (Belone belone) belongs to the Osteichthyes class, to the subclass Actinopterygii, to the superorder Teleostei, to the Synentognathi order and to the Belonidae family. It has a very elongated and compressed body, the dorsal zone is dark blue and fades in the blue on the flanks which are silvery; The belly is yellowish in color. Its length can exceed 80 cm and 1 Kg of weight ...

Orange-lined Triggerfish

Orange-lined Triggerfish (Balistapus undulatus) is a demersal triggerfish. Although Balistapus is a monotypic genus, it is closely related to the genus Balistoides. The Orange-lined Triggerfish has a dark brown to dark green body with orange lines that start behind the head and cover the rest of its body. Their maximum body size is about 30 centimeters ...

Giant Barrel jellyfish

Barrel jellyfish is a very beautiful jellyfish! and this one in the video is really big, probably the diameter exceeds 50/55 cm, as can be seen from the proportions of the undersigned's hand. It is one of the classic jellyfish of the Mediterranean Sea, perhaps the most common to encounter.. ...

Umbraculum mediterraneum or Umbrella slug

I saw this beautiful specimen of Umbraculum mediterraneum during a dive in a Mediterranean coral reef at a depth of over 70 meters. In many years of diving I had never come across this nudibranch. It is an adult specimen of rather large dimensions, in fact it is well over 20 cm in length. ...

Young Titan triggerfish

In this video you can see a Titan Triggerfish in its juvenile phase during which, if possible, it tries to stay safe inside a lair that it has probably excavated. However, if it catches signs of danger, it runs away to find a safer refuge in the coral reef. The shape is characteristic of ...

Mediterranean jellyfish

Mediterranean jellyfish, Cotylorhiza tuberculata, is a species of jellyfish, of the phylum Cnidaria, also known as the Mediterranean jelly. It is commonly found in the Mediterranean Sea, Aegean Sea, and Adriatic Sea. It can reach 40 cm in diameter. It seems that this jellyfish's sting has very little or no effect on humans. ...

Cuckoo Wrasse male

Cuckoo wrasse (Labrus mixtus), belongs to the class Osteichthyes, subclass Actinopterygii, order Perciformes, suborder Percoidei, family Labridae. The cuckoo wrasse is a protogynous hermaphrodite, and females can change sex into males, a process which takes around seven months. In this short and interesting video ...

Spotted Eagle Ray

Spotted Eagle Ray, (Aetobatus narinari), is a cartilagionus fish of the eagle ray family, Myliobatidae. As traditionally recognized, it is found globally in tropical regions, including the Atlantic, pacific and Indian Oceans. Spotted eagle rays are most commonly seen alone, but occasionally swim in groups. They are ovoviviparous ...

Female Cuckoo Wrasse

Female Cuckoo Wrasse, (Labrus mixtus), belongs to the class Osteichthyes, subclass Actinopterygii, order Perciformes, suborder Percoidei, family Labridae. The cuckoo wrasse is a species of wrasse  native to the eastern Atlantic Ocean from Norway to Senegal, including the Azores and Madeira. It is also found in the Mediterranean Sea ...

Dash-and-dot goatfish in Mediterranean Sea

We met the Dash-and-dot goatfish,  Parupeneus barberinus, in Mediterranean sea of ​​Cyprus while snorkelling among the rocks of the island. We did not expect to have this meeting in the Mediterranean because it is a tropical fish present in all tropical seas and in particular in the Indian Ocean and the Pacific Ocean. ...

Ship wreck “DIMITRIOS P” to Creta

During a holiday on the island of Crete we went to the nearby island of Gramvousa starting from the port of Kissamos. The passion for underwater video shooting brought us to this place with white sandy beaches, wild and rocky but with a crystal clear sea typical of the Mediterranean Sea. We knew that there is the rusty wreck of ship wreck “DIMITRIOS P”  ...

Gilt-head bream

Gilt-head bream or sea bream is a fish that usually lives in open water, in this video we see a specimen in a hole, probably looking for molluscs and crustaceans on which it feeds.  Often very wary of the diver from whom they keep their distance, in summer it is easy to find specimens, even large ones, among the swimmers ...