Salmon/Trout lures/ techniques

[DonFisher]

Hey guys, as the salmon/trout season approaches I got a few questions regarding the lures and techniques. Do salmons actually bite the spoons and j13 rapalas? I was once told people use it mainly to hook the salmons just because of the number of fish in the water at that time and it's illegal to keep salmons caught that way. I was also told you can't keep the salmon just for it's caviars and then release them. What if i just want catch and release??? Help >.>

Thx and cheers.