Here is a little excerpt from one of the paragraphs I highlighte:
A fragment of the fifth left metacarpal analyzed by AMS has an isotopically-corrected age of 8410 +/- 60 B.P. (UCR 3476) (ca 7300 to 7600 B.C.). Amino acids and stable isotopes indicate heavy dependence on anadromous fish.
In other words this guy was dependent on the migrating salmonoids for his food a few thousand years before the Indians showed up on in this area.