On their way back from a day of fishing, fishers shared information on where, how, when and how much they spent to catch fish as well as the amount and the species caught. Researchers present at the daily landings collect information to quantify and identify the fish, take biometric measurements and photos of all captured fish, and systematize the data, allowing researchers to identify which fish came from which vessel. Image courtesy of Igor Hister Lourenço.

Amazon fishers help scientists map dam harms to Madeira River stocks

Ancestral fishing knowledge is now obsolete after dams broke the river’s rhythm, scrambling ancient fishing spots.

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