I learned that scientists switched from measuring in lux (the amount of illumination) and started measuring light power only since the 1980's! Today, light power is mostly expressed as PAR, but some authors still seem to refer to the precursor, µE's. (An obvious salute to Einstein.)
Great article! It basically wraps up the side-effects of carbon dosing and algae blooms and how they affect corals negatively.
Chaeto and turf algae allow the highest density of epiphitic toxic dino's of any sudied algae. (See Table 1.) Even more interesting to me is Appendix A where a variety of macro aglae are listed, along with notes on palatability to some known grazers.