Experimental design: samples were collected and processed in 2019 and 2020 (OG; n=50,14). Post-storage samples were reanalysed in 2022 on two replicate sub-samples from each archived sample (RA and RB). Note that 2 samples originally taken in 2019 from group RB failed quality control and were removed from the study.

 
 
  Part of: Warren J, Butler S, Evens N, Hunt L, Kelly M, Newbold L, Read DS, Taylor JD, Walsh K (2024) Influence of storage time on the stability of diatom assemblages using DNA from riverine biofilm samples. Metabarcoding and Metagenomics 8: e129227. https://doi.org/10.3897/mbmg.8.129227