Phytoplankton biodiversity estimated for in-water pigment composition using CHEMTAX and for radiometric estimates using PHYDOTax, are presented in ( Table4 ) Estimates of phytoplankton biodiversity ( i.e., dinoflagellates, diatoms, and cyanobacteria) using PHYDOTax is shown for both April and October 2013 in Fig5. In- water CHEMTAX estimates in April suggest a diatom dominated system at all three stations at 52-67% of the population, with cyanophytes composing 18-24% of the community. Cryptophytes are estimated to be present only at the PRM and MO stations at 13% and 20% respectively. These in- water CHYEMTAX population ostimates were compared to the ship-based HyperPro radiometric measurements as a test of how well PHYDOTax was working. The patterns of relative abundance of each taxon were not statistically significant for mose of the stations on either of the dates (Table5). Nevertheless, trends in taxon composition did exist burning the 10 April 2013 collection (Table 4).