3 years time series data at Feitsui Reservoir

Water samples were collected biweekly at 2-m depth from the Feitsui Reservoir (121.34E at 24.55N) in northern Taiwan from March 2014 to October 2017. In total, we collected 76 samples in GoFlo bottles over 2.5 years. We filtered 1 L of water through a 0.2-um-pore polycarbonate filter (Millipore, Bedford, MA, USA) to retain prokaryotic organisms. After filtering, we immediately stored the 0.2-um-pore-size filters in liquid nitrogen and then preserved them at -20 C in our laboratory until further molecular analysis could be conducted.