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Introduction to the Connectivity of Hills, Humans and Oceans (CoHHO*):
Figure out how they interact with each other
(2) “Nutrients” that nurture living creatures in the sea
Emeritus Prof. Yoh Yamashita
Figure 5. a) Change in dissolved iron (colloidal iron and iron humate) from river to coastal area. b) Change in humic - type fluorescence (indicator of iron humate) (Adapted from the figure of Watanabe et al. 2018). Black circles indicate collected river water, blue circles indicate collected coastal water, crosses indicate below measurement limit. Most of dissolved iron considered as colloidal iron decreases drastically in river mouths (salinity <5), whereas humic - type fluorescent substance (including iron humate) does not deposit and dissipates in the sea.
