Russian Osetra Caviar was once prominent in the Caspian Sea. Before over-fishing, Russian Sturgeon (species: acipenser gueldenstaedtii) flourished in the Caspian Sea. Today, they are classified as critically endangered. So, the only way to have Russian Osetra Caviar is by farming. Aquafarms can use several farming methods. Marshallberg Farm is the only producer using a method ranked a Best Choice for sustainability by Seafood Watch. Therefore, Osetra from Marshallberg Farm is the only sustainable option in the United States. There is also a farm in Germany that produces sustainable Osetra caviar. However, imported caviar can take months to reach the consumer. Even good imports switch hands and are repacked by distributors. Like any perishable product, the fresher option is to buy Russian Osetra Caviar direct from a local producer. You can feel good about supporting sustainable, family-owned Marshallberg Farm here in the USA.