The entire chain of custody includes everything from transporting, trading, processing, and packaging, to selling of fish in restaurants and in food service sectors.
Many retailers and seafood brand owners are becoming increasingly concerned about where their fish products come from and how they have been caught.
Commercial fishing is on the treshold of a major transformation where seafood products become routinably traceable. The opportunity to effectively trace our seafood has emerged with raising public awareness of the fishing crisis, demanding sustainable seafood and better, more responsible markets.
More info here