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BLUE SHARK Prionace glauca Blue Shark Printout |
Blue sharks grow to be up to 12.5 feet (3.8 m) long.
The blue shark's sleek, tapered body makes it a graceful swimmer. Its elongated caudal fin (tail) provides swimming power as the tail moves side-to-side. These sharks are among the fastest swimming sharks and can even leap out of the water. They are also probably among the fastest fish. Estimates of their speed varies; some say that they can swim at about 60 miles per hour (97 kph), while more conservative estimates are about 22 mph (35 kph). There hasn't been enough experimentation on their speeds to have an definitive answer.
HABITAT AND DISTRIBUTION
Blue sharks are pelagic; they are found in open waters. Like most pelagic sharks, they are found worldwide.
BLUE SHARK ATTACKS
Blue sharks are considered dangerous, and there have been attacks on people.
REPRODUCTION
Blue sharks are viviparous. Litters consist of 4 to 135 pups; the number of pups increases as the size of the mother increases. The gestation period is almost 1 year. Females are mature at 5 years old.
MIGRATION
Atlantic blue sharks migrate across the Atlantic Ocean each year, following the warm Gulf Stream waters on their eastward trip. They travel a circuit from the Caribbean Sea, along the coast of the USA, east to Europe, south to the African coast, and back to the Caribbean.
SOCIAL GROUPS
Blue sharks often form large, all-male or all-female schools (groups) which contain sharks that are about the same size. No one knowns why they do this.
POPULATION COUNT
The blue shark is classified as low risk/near endangered.
BLUE SHARK CLASSIFICATION
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Kingdom Animalia (animals) Phylum Chordata SubPhylum Vertebrata (vertebrates) Class Chondrichthyes (cartilaginous fish) Subclass Elasmobranchii (sharks and rays) Order Carcharhiniformes Family Carcharhinidae Genus Prionace Species glauca |
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BLUE SHARK PRINTOUT
Blue Shark Printout
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