Figure 2: Relationships between Hg parameters and bacterial production for lakes dominated by autochthonous versus terrigenous OM.
From: Molecular composition of organic matter controls methylmercury formation in boreal lakes
Relationship between (a) Hg methylation rate constant (km in day−1) and bacterial production, (b) concentration of inorganic Hg (ng g−1) and MeHg concentration (ng g−1) and (c) Hg methylation rate constant and MeHg concentration (ng g−1). The lake sediments dominated by terrigenous allochthonous OM (Lilla Sångaren, Ljustjärn, Svarttjärn, Fälaren, Oppsveten) are represented with red triangles. Lake sediments dominated by autochthonous OM (Strandsjön, Valloxen, Vallentunasjön, Marnästjärn and Lötsjön) are represented by green triangles. The lake Marnästjärn which is highly contaminated by historical anthropogenic inputs of Hg was not included in chart c. Error bars represent one standard deviation.
