Presentation - National Water Research Institute

Irradiated kelp produced H 2 O 2 (75
nM) with substantial increase in
solution color, suggesting
photochemical production from
kelp-derived CDOM.
Dark control for senescent kelp was
30 nM, consistent with a direct
contribution (~40% of
photochemical production) from
decaying tissues.
H 2 O 2 photochemical production
rate from kelp ~5 nM h -1 , on the
order of CDOM production rates
previously measured in coastal and
oceanic waters.
No significant production from
seagrass