Salmon

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The Atlantic salmon is anadromous: eggs are incubated in fresh water where they hatch, grow up, and then go off to sea where life is more dangerous, but food is more plentiful. After eating enough to get big they return to the river they hatched in and swim back to the spot that smells right, that is, that reminds them of their youth. They don't eat much on this journey and die after reproducing.

This is the salmon of Europe recorded back to the the days of Rome and once prevalent spawning in all the Atlantic rivers on the continent. Today they are mainly found in Scandinavia, where some still spawn in the rivers, but many live on fish farms in the fjords.

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