When comparing regional recovery scales, what was the starting population estimate for Baltic seals at the start of the 20th century?

Answer

Over 90,000

The Baltic Sea population began the 20th century with an estimated size exceeding 90,000 individuals before experiencing a severe decline.

When comparing regional recovery scales, what was the starting population estimate for Baltic seals at the start of the 20th century?
populationconservationmammalwildlifeseal