Salmon that doesn’t spring back to its ‘initial’ condition after a moderate prod probably indicates it’s been frozen for way too very long (and so isn’t technically fresh salmon!). Lastly, quality fresh salmon must have a deep red-orange-pink colour to it whereas the pores and skin really should be shiny https://eduardokrafj.bloguetechno.com/buy-quality-atlantic-salmon-for-dummies-68389732