Variations in relative abundances of the OTUs related to a. Minidiscus comicus, b
Minidiscus spinulatus, c
Minidiscus variabilis, d
Thalassiosira curviseriata, e
Thalassiosira cf. profunda, and f
Thalassiosira sp. at the SOMLIT-Astan station during the period 2009–2016. Note that metabarcoding data corresponding to 25 sampling dates (mainly between 2014 and 2015) were removed from the dataset (see “Material and methods”).