As said, yes they are the same. If you are purchasing a package I will assume that you are purchasing eggs, whether they are decapsulated or not. Those would have to be hatched and do provide a good source of protein; however, adult brine shrimp are quite the opposite unless you enrich them. Try brineshrimpdirect.com or just about any lfs
should carry adult brine you can enrich. I would not consider brine, enriched or not, as part of a staple diet.