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The sand tiger shark (Carcharias taurus), grey/gray nurse shark, spotted ragged-tooth shark, or blue-nurse sand tiger, is a species of shark that inhabits subtropical and temperate waters worldwide. It inhabits the continental shelf , from sandy shorelines (hence the name sand tiger shark) and submerged reefs to a depth of around 191 m (627 ft ...
The pelagic food web, showing the central involvement of marine microorganisms in how the ocean imports nutrients from and then exports them back to the atmosphere and ocean floor. A marine food web is a food web of marine life. At the base of the ocean food web are single-celled algae and other plant-like organisms known as phytoplankton.
Sand sharks, also known as sand tiger sharks, gray nurse sharks or ragged tooth sharks, are mackerel sharks of the family Odontaspididae. They are found worldwide in temperate and tropical waters. They are found worldwide in temperate and tropical waters.
A freshwater aquatic food web. The blue arrows show a complete food chain (algae → daphnia → gizzard shad → largemouth bass → great blue heron). A food web is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.
Bigeye sand tigers can reach a length of about 3.6 metres (12 ft) and smalltooth sand tigers of about 4.1 m. They are large-bodied sharks with long, conical snouts, broad-based dorsal and anal fins, and an asymmetrical caudal fin with a strong lower lobe. Their teeth are large, with prominent narrow cusps. [3]
Nurse shark (Ginglymostoma cirratum) Will occasionally visit artificial reefs. Sandbar shark (Carcharhinus plumbeus) Common near Sandy Hook. Growing presence nearer to New York City. [19] Sand tiger shark (Carcharias taurus) New York Harbor is an important nursery for the babies. [citation needed] Scalloped hammerhead (Sphyrna lewini).
Carcharias is a genus of mackerel sharks belonging to the family Odontaspididae (sand sharks). Once bearing many prehistoric species, all have gone extinct with the exception of the critically endangered sand tiger shark.
The bigeye sand tiger (Odontaspis noronhai) is an extremely rare species of mackerel shark in the family Odontaspididae, with a possible worldwide distribution.A large, bulky species reaching at least 3.6 m (12 ft) in length, the bigeye sand tiger has a long bulbous snout, large orange eyes without nictitating membranes, and a capacious mouth with the narrow teeth prominently exposed.