Table including the taxonomic assignment (using ecotag), the abundances per site and the sequence of 12S-MOTUs found in sediment and pooled Crangon crangon stomach samples collected from 21 sites in the Netherlands, Portugal and United Kingdom. Ordered in the following columns: (A) Sample_type (B) id, (C) rank, (D) scientific_name, (E) best_identity, (F) superkingdom, (G) kingdom, (H) phylum, (I) class, (J) order, (K) family, (L) genus, (M) species, (N to AH) abundances in the different sites [ES: Eastern Scheldt, WS: Western Scheldt, MI: Minho, AV: Aveiro, ME: Mersey, KE: Kent; 1-4: Replicates], (AI) sequence.