IMIS

One of the case studies of the soft-bottom monitoring of macrobenthos pilot study is the Long-term Monitoring (LTM) case study. The LTM case study takes place in a long-term sampling location near Norderney Island (part of SGN´s Long Term Ecological Research North Sea Benthos Observatory), where SGN has a 40year time series and is one of the few long-term benthic study sites in the North Sea and the world. Five stations were sampled at water depths between 10-20 m north of the island of Norderney (German North Sea) three times within a year (September 2019, March 2020, June 2020). Each time ten samples were taken by using a Van Veen grab sampler, five of which were preserved in alcohol and the rest five in formaldehyde for the DNA metabarcoding and the traditional monitoring respectively. meer