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HomeNotice > It is the first among the world! Baby of black sea turtle was born!

It is the first among the world! Baby of black sea turtle was born!

2017.09.22 Ocean Expo Park

In Ocean Expo Park, Sea Turtles Pool, we succeeded in breeding of "black sea turtle" which was rare kind for the first time in the world in the country in June, 2017!

It is the first among the world! Baby of black sea turtle was born!
It is the first among the world! Baby of black sea turtle was born!

Process until baby birth of black sea turtle

  • Breeding start of 1999 Toshio individuals
  • Breeding start of individual female for 2,009 years
  • Living together start of March, 2015 book kind of the sex
  • Female sexual maturation is confirmed for the first time in March, 2017 by supersonic waves video diagnosis
  • We confirm copulation on May 24, 2017
  • We record the first laying eggs on June 25, 2017

It is the first among the world! Baby of black sea turtle was born!

We performed five times of laying eggs from June through August afterward and produced 262 eggs in total. We confirm incubation for the first time on August 27, and 11 individuals are born to date.
By this breeding success, the days required for maturity start size and ovogenesis of female black sea turtle became clear. Knowledge is poor about propagation of this species life and can expect that knowledge new again is provided by continuing breeding in future.

It is the first among the world! Baby of black sea turtle was born!

Black sea turtle

≪Scientific name >> Chelonia agassizii

The southern part of Peru, the east Pacific around the Galapagos Islands are considered to be main habitat from Mexico bahakariforunia. Carapace and shell are black from gray, and the feature is that constriction is recognized in carapace of hind leg base. In the country, we are rarely discovered in Okinawa Island around the South-West Islands.


Contact information
Ocean Expo Park Management Center
TEL: +81-980-48-2741

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