Salmon Caviar seems to be mainly used in stores selling Caviar and it sounds more precious. Caviar is the roe of sturgeon, while salmon caviar is the roe of salmon. Although caviar is several times more expensive than salmon caviar, some gourmets consider salmon caviar a good option.
Many companies selling caviar, seafood or other gourmet foods also sell salmon caviar.
Some of the above companies are also importer or exporter. In addition, you can refer to this list . Note that the list includes caviar importers and exporters and thus they may not handle salmon roe. Caviar contains 47 vitamins and minerals. The best way is to use rubber sealed can.