Portugal archipelago expedition studies marine ecosystems

The Madeira Ocean 2026 expedition began on 2 October and is due to continue until 28 October.

More than 10 vessels are involved in the work, which ranges from coastal waters to deep-sea environments at depths of up to 1,000 metres.

The regional government says the teams are gathering information about marine biodiversity, the condition of habitats and the pressures affecting the ecosystems.

Their work combines scientific diving with drones, acoustic mapping, underwater cameras and remotely operated or autonomous vehicles.

Protected areas

Researchers are working both inside and outside protected marine areas.

Comparing the different sites should help them understand how biodiversity varies and how human activities affect the marine environment.

The findings are intended to support conservation decisions and a long-term monitoring programme, so changes in species and habitats can be followed over time.

The expedition also brings together scientific teams from Portugal and other countries, including the National Geographic Pristine Seas programme and the Fundação Oceano Azul.

Natural heritage

The Madeira government says the research will help build a clearer picture of the region’s natural marine heritage and provide information for future decisions about its protection and management.

RTP described Madeira Ocean 2026 as one of the largest scientific expeditions organised in Portugal.

The regional government has also stressed that people who live and work at sea, including fishing communities, hold valuable knowledge about local waters and should be part of the wider conservation effort.