|Dr. Cochlan (SFSU-RTC) with former student, Brian Bill (NOAA-NWFSC),|
enriching seawater for a domoic acid experiment.
|Kathryn Ferguson and Brian Bill hard at work.|
|Kathryn Ferguson, Hollings Scholar, FSU/NOAA-NWFSC|
|These are the samples before the diluted hydrochloric|
acid (HCl) is added to each.
|Brian uses this special pipette to add 0.1mL to each sample.|
|After the HCl (diluted hydrochloric acid) is added,|
the samples change colors (indication of chemical change).
The lighter blue or clearer indicates high amounts of
domoic acid. This one is off the charts.
|The plate goes into machine that reads the optical density of each sample.|
|Analysis of the plate gives Brian the standard curve.|
|Making a plate for domoic acid analysis|
|Standard curve used to determine |
production of domoic acid.
|For quick analysis of the general|
abundance, a phytoplankton net tow is
used to make collections.