FIG. 1.

Vertical distributions of physical and biological variables at Station 6 in Mono Lake on 20 July 2000. (A) Temperature (°C), irradiance (PAR), excess density (Density), and abundance of bacteria (Bacteria); (B) dissolved oxygen (O₂), ammonia (NH₃), sulfide (S⁻²), and methane (CH₄); (C) relative fluorescence (RF) (arbitrary units), transparency (% T), chlorophyll (Chl), and dissolved organic carbon (DOC). The chlorophyll profile was constructed from a low-resolution cast made on 17 July 2000 and a high-resolution cast to define the chlorophyll maximum taken on 20 July 2000. mgL ⁻¹, milligrams per liter; μE m⁻² sec⁻¹, micro-Einsteins per square meter per second.