Farmers brought fish up the mountains of Europe as early as the 7th century Farmers brought fish up the Pyrenean mountains and into the lakes as early as the 7th century, according to international and Australian researchers. The team say lakes in the high mountains of Europe didn't originally have fish, but evidence of humans introducing them to those areas has been found from the 14th and 15th centuries. The researchers studied the sediment core of Lake Redon in the Pyrenes Mountains of Spain and found DNA from fish parasites and fish prey dating back as early as the 7th century, when the region was likely used for sheep farming, suggesting fish were brought there earlier than previously thought. Today, the lake is home to about 60,000 brown trout.
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