Fernando Lessa

Field notes

Notes from the field, the water and the editing room.

Short dispatches, behind-the-scenes observations and lessons learned while documenting rivers, oceans and the people who depend on them.

The Ribeira de Iguape expedition

June 7, 2026

The Ribeira de Iguape expedition

A five-day descent into the Resurgência de Bombas to document Pimelodella kronei — the Brazilian blind catfish — in its own habitat for the first time.

Field Notes — Arrombado do Taquari, Serra do Amolar, Pantanal

May 1, 2026

Field Notes — Arrombado do Taquari, Serra do Amolar, Pantanal

The Arrombado do Taquari is what happens when a river breaks its own banks and doesn't look back. Decades of upstream land use overloaded the Rio Taquari with sediment until it had nowhere left to go — so it redirected itself into the floodplain, permanently flooding farms and reshaping everything in its path. The ranches are gone. What remains is one of the largest continuous wetland stretches in Brazil, and one of the least documented.