Latest count raises hopes for the future of the endangered big cats.
Worldwide tiger populations have plummeted from 100,000 a century ago to less than 7,000 today.
According to the World Wildlife Fund, tigers could be extinct in the wild within a decade.
The Siberian or Amur Tiger is one of the rarest in the world, with only around 500 left in the wild in Russia. But poaching, disease, and habitat loss from intensive logging and development continues to threaten populations.
Al Jazeera’s Robin Forestier-Walker reports.