Building a science of biodiversity recovery - Nature

Researchers from the Bazaruto Center for Scientific Studies (BCSS) Ocean Observatory have documented submerged "peat reefs" in the shallow waters of Mozambique's Bazaruto Archipelago, finding that ancient coastal forests - now lying beneath the sea - support marine biodiversity comparable to coral reefs. Published on 12 October in Scientific Reports, the study is believed to be the first ecological research into tropical peat reefs from a biodiversity perspective, with radiocarbon dating placing peat formation between roughly 300 and 5,000 years ago. The reefs, sitting just 2 - 4 metres deep, host no living coral yet shelter dozens of fish species, spiny lobsters, oysters and juvenile reef fish, alongside larger species including sharks, rays and turtles. The findings carry significant implications for coastal conservation and blue economy policy. Some peat samples contain up to 40% organic carbon by dry weight, raising questions about their potential role as legacy carbon stores - though researchers note that the peat reefs' present-day carbon cycling function remains unresolved and requires further dedicated study.

Peat reef habitat fauna, a bluebanded snapper. Researchers from the Bazaruto Center for Scientific Studies (BCSS) Ocean Observatory have documented ancient forests that grew on the Mozambican coast thousands of years ago and have been found beneath the sea, where they now serve as hotspots teeming with marine life similar in biodiversity to coral reefs. The discovery raises the question of how many more of these hidden peat reefs exist around the world's coastlines and how to evaluate them as a carbon store and develop policies to protect them and their biodiversity. The paper in Scientific Reports published by the BCSS Ocean Observatory, working in collaboration with researchers from U.

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