This article was originally published in Eos.
New Zealand straddles the boundary of two tectonic plates and as a result is in a constant state of upheaval. As mountains rise and fall, rivers are split, diverted, and joined. In some cases, they have even reversed flow.
A geologist, a biologist, and an ecologist recently put their expertise together to simultaneously trace the movement of fish and gold through the country’s rivers. The results point to hidden riches, and the team’s approach has informed research around the world.
