cruise diary, day 5: 20 Aug 2007

6:00 am leave the Maritime Museum Dock in Astoria. Suzanna Brauer has joined us for the day to collect samples to study manganese oxidizers. Michael Wilkin is also joining us for the morning to hook up the ADP interface (Michael left the Barnes on the Forerunner). Coordination with the Forerunner which is doing a trans-south channel transect at the location of the Barnes, and North Channel and South Channel transects. We took CTD cast every 30 min for the whole tidal cycle. We saw some small increase in OBS values, once in mid-water column depth and once at the bottom and sampled each time. The water fractionation technique to separate the free-living bacteria from the whole sample is working fine.