Uncharted Caribbean Depths Reveal Hidden Fish and Ecosystems

A major scientific expedition is set to explore the Caribbean's deep water for the first time. The 'Beyond the Reef' mission, part of the UK's Blue Belt programme, will map over 5,000 square kilometres of seabed around Anguilla, Turks and Caicos, and the Cayman Islands. These water remain largely unstudied, leaving gaps in knowledge about key fish species and sustainable fishing practices.

Fishing plays a vital role in the economies, tourism, and daily lives of these island communities. Yet little is known about the distribution and numbers of commercially important species like grouper, snapper, and tuna. This lack of data makes it difficult to balance economic needs with marine conservation.

The expedition, led by deep-sea ecologist Dr. James Bell from CEFAS, will survey uncharted areas of the seafloor and open water. Scientists will study fish populations, current fishing methods, and the impact of tools like Fish Aggregating Devices (FADs). These devices, used in Anguilla and the Cayman Islands, can unintentionally attract sharks, raising concerns about bycatch.

Researchers also hope to uncover new species and ecosystems, as these deep water have never been systematically explored. The findings will support efforts to design better conservation strategies and reduce bycatch risks. By filling critical knowledge gaps, the mission aims to help the territories manage their water more sustainably.

The expedition's results will provide the first detailed picture of the region's deep-sea life. This information will guide policies to protect marine wildlife while supporting local fishing industries. Accurate species data could also improve safety measures for fishermen and reduce unintended harm to vulnerable species.