Smoked Salmon nailed it.
You have to do things in order if you plan on doing multi-species fishing. If you would like to do salmon, halibut, and tuna without worrying about breaking the regs then you'll need to do them in reverse order. (tuna, halibut, salmon)
If you do them in the other order then you'll have to abide by the rules set forth for salmon for all the other species.
Or at least I think that's right?

