Arrrgh, I'm so jealous!
I am happy to have finally found a source here (
Picard) for Pacific wild salmon, since normally the only option available in France is Atlantic farmed salmon. No Copper River, though.
Bon appétit!
the first place i would try is Restaurant Le Saint-Laurent
Corinne et Jean-Philippe Denizet and ask them if they would know where to find crs. at the same time, i would ask them if they could procure it, and prepare it.
Cordeillan-Bages is not that far away, i would ask them also.