The Atlantic salmon is the only salmon native to the ocean whose name it bears. Salmon bones have been found in caves of Stone Age humans in southern Europe and elders in Switzerland still remember stories their elders told them about salmon spawning as far up the tributaries of the Rhine as Zurich. Sadly, the industrial revolution damaged their habitat before the critical role of watershed preservation was understood. Though there are still some streams and rivers that support fragile runs of wild Atlantic salmon, there is no commercial fishery in the United States. The genes of Atlantic salmon and their cousins, Salmo trutta, however, are now the mainstay of the farmed salmon industry in Norway, Canada, Chile, and other countries that permit marine aquaculture.