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The bull shark is diadromous, meaning they can swim between salt and fresh water with ease, [40] as they are euryhaline fish—able to quickly adapt to a wide range of salinities. Thus, the bull shark is one of the few cartilaginous fishes that have been reported in freshwater systems.
While the majority of sharks are solely marine, a small number of shark species have adapted to live in freshwater. The river sharks (of the genus Glyphis) live in freshwater and coastal marine environments. The bull shark (Carcharhinus leucas), can swim between salt and fresh water, and are found in tropical rivers around the world.
Bull shark Historically responsible for an incident in Matawan, New Jersey in 1916 that inspired the film Jaws, [14] this species is known to be more and aggressive than the larger great white, which cannot survive in fresh water. [15] Bull sharks can swim up freshwater rivers and are present in the area from May–September.
Ocean sharks are used to a salt water environment, and the Seine is fresh water, which would dehydrate and eventually kill them, as the Dartmouth Undergraduate Journal of Science points out.
“Young bull sharks are common inhabitants of low salinity waters — rivers, estuaries, subtropical embayments — and often appear in similar videos in Florida water bodies connected to the sea ...
Shark bites are common in Volusia County, with blacktips and bull sharks mostly to blame. But the bites are rarely fatal. Here is what we know.
Sharks are found in all seas. They generally do not live in fresh water, with a few exceptions such as the bull shark and the river shark which can swim both in seawater and freshwater. [99] Sharks are common down to depths of 2,000 metres (7,000 ft), and some live even deeper, but they are almost entirely absent below 3,000 metres (10,000 ft).
Unconfirmed, probably a bull shark: Attacked while swimming in a canal 10 miles (20 km) north of St. Augustine, Florida, Rives' leg was severely bitten. The Jacksonville papers initially and erroneously reported this as a barracuda attack. He died in the hospital after attempts to save him were unsuccessful. Neil Womack