Many are unaware that there are at least 440 different shark species in the world, at least according to experts' estimates so far. Even less well known is the fact of how millions of specimens around the world are currently at risk of disappearing, making the shark belonging to a category of aquatic animals in danger of extinction.
He is about to end up run over, his mother saves him
Many are unaware that at least they exist in the world 440 species of sharks different, at least according to the estimates made so far by experts. Even less well known is the fact of how millions of specimens all over the world are found at the moment at risk of disappearance, making the shark belonging to a category of aquatic animals endangered.
Sharks are threatened by both intensive fishing both from the same activity carried out for a for entertainment purposes only. Every year 100 million sharks they are killed by the hand of man mostly for futile reasons. By comparison, the cases of severe shark attacks targeting humans are far fewer in numbers. The protection of marine predators such as sharks should always be guaranteed, as well as for any endangered species, but this rarely happens, perhaps due to the negative fame which is attributed to them in the common imagination.
Let's try to get to know ten rare species of sharks together, which you may have never seen before, given the rarity of the images that portray them.
1) Angel Shark (Squatina squatina)
It is a species of shark currently considered ad very high risk of extinction. Its presence in the nineteenth century was believed to be abundant along the coasts of Western Europe. Over the last century the number of its specimens has rapidly declined, so much so that the angel shark is considered extinct in the North Sea and the Mediterranean.
2) Daggernose Shark (Isogomphodon oxyrhynchus)
The name of this shark derives from the extension of its snout, which assumes a shape similar to that of a dagger ("Dagger"). It lives in South American waters between Trinidad and Brazil. It is a species considered to be at high risk of extinction. The limited number of copies still living, it is constantly endangered by fishing, as well as by the reproductive difficulties of the species itself.
3) Zebra Squalo (Stegostoma fasciatum or spotted)
The zebra shark represents the only type of specimens remaining belonging to the family called "Stegostomatidae". It is usually sighted betweenIndian Ocean andPacific Ocean. It is considered by the World Conservation Union as a highly vulnerable species. It lives near the coral reef and is fished, mainly in Australia, for commercial purposes, to obtain it meat e liver oil.
4) Great White Shark (Carcharodon carcharias)
The great white shark is probably one of the best known species in terms of extinction risk. It is currently being considered highly vulnerable. Precise data on the number of specimens currently present in the world would not be available at the moment, but its presence, typical of every ocean, would have drastically decreased in recent decades.
5) Squalo Hand (Isurus oxyrinchus)
The mako shark sees the waters of tropical and subtropical seas as its natural habitat. The fame of him is given by the literature, with reference to the work "The old man and the sea", by Ernest Hemingway. In 2010 Greenpeace International placed the shark on the black list of fish caught with unsustainable fishing methods for sale in the food trade circuits.
6) Squalo Elefante (Cetorhinus Maximus)
The presence of the basking shark in ocean waters around the world has dropped dramatically due tofishing activities mainly for food purposes, aimed at the sale of its meat and liver oil, as well as the production of animal feed. This migratory shark species is believed to be at high risk of extinction.
7) Dumb Gulper Shark (Centrophorus harrissoni)
It is a specimen of shark considered particularly rare and ad very high risk of extinction. Its presence is now only identified in the waters of the area of Australia and New Zealand. It is characterized by rather small dimensions, which usually would not exceed one meter. Its infallible sight makes it able to see very well up to hundreds of meters below the sea level.
8) Speartooth Shark (Glyphis glyphis)
Here is a very rare species of shark, considered at risk of extinction and belonging to the family called Carcharhinidae. The last remaining specimensi would be present only in the waters of Australia e New Guinea. In Australia it had been declared highly endangered as early as 1999.
9) Whale Shark (Rhincodon typus)
The whale shark represents the largest shark and fish in general currently existing. It is properly a shark, but its shape, due to its blunt head and flattened back, makes it partly similar to a whale. It is a species considered highly vulnerable, so much so that the Philippines have banned its fishing, sale, export and import since 1998, followed by India in 2001 and Taiwan in 2007.
10) Squalo Bruno (Carcharhinus obscurus)
The brown shark, which finds its natural habitat in warm and temperate waters around the world, is currently in danger of extinction with particular reference to the north-west of the Atlantic Ocean and the Gulf of Mexico. The brown shark's low reproductive rate in North American waters makes it even more endangered than the intensive fishing activity.
Marta Albè
