Shotgun sequencing of multiple families of Polychaeta from U.S. Atlantic margin seeps and eDNA metabarcoding sequences of benthic community from Cascadia margin seeps using 18S marker, 2018–2019

Reported here are the geographic sampling information associated with the raw shotgun sequencing data of multiple families of Polychaeta samples collected from cold seep sites off the U.S. Atlantic margin as well as raw 18S amplicon sequencing data from sediment eDNA collected from Astoria Canyon seeps, located on the Cascadia margin, northeastern Pacific Ocean. Also included are GenBank accession numbers for the two Bioprojects containing both of these sequence datasets.