I know that steelhead are referred to as 1 salt, two salt, etc to determine how old they are. However, I've heard conflicting reports on what "salt" stands for. One person told me that a 2 salt fish is a fish that is in the saltwater for 2 years. A 3 salt is one that remains for 3 years, etc. Another guy told me that a 2 salt means that the fish has gone out to saltwater twice and that a 3 salt means it's been out to saltwater 3 times, etc. Which one is correct?