title: A9.: Sample collected on 2021-07-15 at Reykjanes in Iceland
design: DNA was extracted using a modified DNeasy PowerWater Kit protocol involving sonication, bead beating, and syringe-based lysate recovery. Amplification of the 16S rRNA gene v4 region was performed with 515F/806R primers using a 35-cycle PCR, followed by sequencing on a MiSeq platform with dual-indexed multiplexing.