Mozambique’s submerged peat reefs host diverse marine life

Submerged peat reefs off Mozambique support diverse marine communities, according to a study published October 12 in Scientific Reports. Researchers documented the habitat in the Bazaruto Archipelago, where ancient coastal peat now forms marine substrate. ^[1]

The study found that peat reefs support varied marine life, with fish richness comparable to nearby coral reefs. At least 41 small reef fish species and 44 megafauna species were recorded in both habitat types, although the communities differed in composition. The peat reefs are characterized by seagrass, macroalgae and sponges rather than living corals. ^[1]

The findings describe an understudied habitat, but do not establish how much carbon these reefs store across the seascape. Although sampled peat contained up to 40% organic carbon by dry weight, the paper says this does not quantify habitat-wide carbon stocks. The results come from one study area, so the reefs’ broader distribution and ecological role remain uncertain. ^[1]