Baltic Population
Recent studies have shown that the now extinct sturgeon population in the Baltic Sea belonged to the Atlantic sturgeon subspecies rather than to the European variant (A. sturio) as previously thought. The research indicates that this species migrated to the Baltic about 1300 years ago and subsequently displaced the native species.
Because of overfishing and pollution, however, the Atlantic sturgeon was extirpated from the Baltic sea in the beginning of the 20th century. A German-Polish project is now (2009) underway to re-introduce the sturgeon into the Baltic by releasing specimens caught in the Canadian Saint John river into the Oder, a river at the border between Germany and Poland where the species once spawned.
Read more about this topic: Atlantic Sturgeon
Famous quotes containing the word population:
“The paid wealth which hundreds in the community acquire in trade, or by the incessant expansions of our population and arts, enchants the eyes of all the rest; the luck of one is the hope of thousands, and the bribe acts like the neighborhood of a gold mine to impoverish the farm, the school, the church, the house, and the very body and feature of man.”
—Ralph Waldo Emerson (1803–1882)