Deposits of fibrous sediment, which include fiberbanks and fiber-rich sediments, are known to exist on the Swedish seafloor adjacent to coastally located former pulp and paper industries. These deposits contain concentrations of hazardous substances that exceed national background levels and contravene national environmental quality objectives. To recover additional genomic data from this family, we analyzed two incomplete metagenomic bins that we extracted from a bulk metagenome of the Janssand tidal sediment. Actinomycetes are a crucial resource for the invention of natural products with therapeutic properties. oceani suggest that this family is heterogeneous and covers a broad physiological spectrum ranging from facultative sulfur- and hydrogen-based chemolithoautotrophy to obligate hemorganoheterotrophy. This could provide adaptations to various biogeochemical settings and possibly explains their success in marine sediments worldwide. Thus, it is imperative to unravel their in situ activity and function in carbon, sulfur and nitrogen cycling in diverse types of marine sediment.
