Samples was collected in the inner Oslofjord at 0-2m and 5m. 2L of water was filtered trough a 0.22 Sterivex-filter. DNA- was exstracted using Qiagen DNeasy Power Water Sterivex Kit (Qiagen, Germany)
Taxonomic groups unveiled in the EEC from 77 samples either by pyrosequencing (2011–2013, 47 samples) or by Illumina sequencing (2013–2015, 30 samples).
