PHOTOS OF BLUE SHARK

 
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Blue Shark Images

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The blue shark, Prionace glauca, is viviparous, bearing live young that have hatched from eggs within the mothers’ body, and the pups are sustained by a yolk sac when they are born. Litters of pups range from four to more than 130, and the number of pups born increases with the age and size of the mother. Gestation is from nine to 12 months and an average litter will be 25 to 50 pups, each approximately 16 to 20 inches long.

Female blue sharks are mature at around five years old, and males at around four years old, and blue sharks are estimated to live around 20 years. During courtship, males will bite the females, and the females have developed skin that is three times thicker than that of males as protection. Individuals can be accurately identified as male or female by the bite scarring on the skin.

Although blue sharks are typically open ocean animals, they can be found in near-shore waters especially in Hawaii. In Hawaii 900,000 sharks were slaughtered from 1991 to 1999, and these were mostly blue, mako, and thresher sharks, taken by long line fishing, for shark fin soup. Long line fishing also indiscrimately kills turtles, marine mammals, and other species as bycatch. The finning industry worldwide takes over one million sharks of various species each and every year.

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Picture of a blue shark, Prionace glauca, eye and small portion of nictitating membrane, open ocean, San Diego, California, East Pacific Ocean

Picture #: 007862

Illustration of a blue shark, Prionace glauca

Picture #: 108985

Image of a blue shark, Prionace glauca, and offshore drift kelp, San Diego, Macrocystis pyrifera, California, East Pacific Ocean

Picture #: 007716

Photo of a blue shark, Prionace glauca, 10 miles off San Diego coast, Southern California, USA, Pacific Ocean

Picture #: 047673

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Picture of a juvenile blue shark, Prionace glauca, with school of jack mackerel, Trachurus symmetricus, San Diego, California, East Pacific Ocean

Picture #: 004680

Stock photo of a blue shark, Prionace glauca, Mexico, East Pacific Ocean

Picture #: 007909

Image of a blue shark, Prionace glauca, San Diego, California, Pacific

Picture #: 019983

Photo of a blue shark, Prionace glauca, San Diego, California

Picture #: 062645

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Picture of a blue shark, Prionace glauca, Rhode Island, North Atlantic

Picture #: 116165

Stock photo of a juvenile blue shark, Prionace glauca, San Diego, California, East Pacific Ocean

Picture #: 004686

Image of a blue shark, Prionace glauca, San Diego, California, USA, eastern Pacific Ocean

Picture #: 089430

Photo of a blue shark, Prionace glauca, California Channel Islands, East Pacific Ocean

Picture #: 008678

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Picture of a blue shark, Prionace glauca, California Channel Islands, East Pacific Ocean

Picture #: 008682

Stock photo of blue shark, Prionace glauca, off San Diego, California, Pacific Ocean

Picture #: 070384

Image of a blue shark, Prionace glauca, California, Pacific

Picture #: 021190

Photo of a blue shark, Prionace glauca, California, Pacific

Picture #: 009685

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Picture of blue shark, Prionace glauca, foreground, and oceanic whitetip shark, Carcharhinus longimanus, Hawaii, Pacific

Picture #: 077197

Stock photo of a blue shark, Prionace glauca, accompanied by pilot fish, open ocean off San Diego, California, Pacific

Picture #: 078392

Image of a blue shark, Prionace glauca, California, Pacific Ocean

Picture #: 081647

Photo of a blue shark, Prionace glauca, Rhode Island, North Atlantic

Picture #: 116166

 

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