Figure 2
From: The chemical succession in anoxic lake waters as source of molecular diversity of organic matter
Concentrations of dissolved organic carbon (DOC, upper row), and iron (Fe, lower row) in the north temperate lakes Croche (left) and Cromwell (right). Panels named “epi” show samples taken monthly in epilimnetic (mixed surface) waters individually and summarized as box-plots (background, representing interquartile range and median). Panels named “hypo” show samples taken from the hypolimnion. Colors indicate uninterrupted redox condition during residence in either water layer. Lines show linear models for the temporal development in the oxic or anoxic portion of the hypolimnion.
