Organic Lake is a lake in the Vestfold Hills in eastern Antarctica. It was formed 6,000 years ago when sea levels were higher; it is isolated, rather shallow (7.5m), meromictic, a few hundred meters in diameter and has extremely salty water. It has the highest recorded concentration of dimethyl sulfide in any natural body of water.
Map of Organic Lake, Antarctica
In 2011, a new species of virophage (a satellite virus that impairs the ability of its co-infective host virus to replicate) was discovered in Organic Lake, the Organic Lake virophage. It is a parasite of a phycodnavirus, a large virus that infects algae and belongs to the nucleocytoplasmic large DNA viruses.
References
Organic Lake Wikipedia(Text) CC BY-SA