What question did this study set out to answer?

To identify and model the primary mechanisms driving dissolved oxygen depletion and deep-water anoxia in the hypolimnia of eutrophic lakes.

August 7, 2012Environmental Science & TechnologyOpen Access

Hypolimnetic Oxygen Depletion in Eutrophic Lakes

View Full Paper

Ask AI

Bookmark

Authors

BMBeat MüllerSwiss Federal Institute of Aquatic Science and Technology LBLee D. BryantUniversity of Warwick AMAndreas MatzingerETH Zurich

Discussion

Member takes

Implication

Observational study reveals hypolimnetic oxygen depletion rates driven by benthic fluxes and water column thickness in eutrophic lakes, highlighting key targets for aquatic restoration.

Key Points

To identify and model the primary mechanisms driving dissolved oxygen depletion and deep-water anoxia in the hypolimnia of eutrophic lakes.
Analyzed long-term observational monitoring datasets collected from 11 eutrophic freshwater lakes.
Modeled hypolimnetic oxygen consumption as a function of organic matter degradation at the sediment surface, molecular diffusion, and the benthic flux of reduced substances.
Areal hypolimnetic mineralization rates ranged from 0.47 to 1.31 g of O2 m⁻² d⁻¹, with a mean of 0.90 ± 0.30 g of O2 m⁻² d⁻¹ across the 11 lakes.
Benthic oxygen demand was driven by a baseline flux of reduced substances averaging 0.37 ± 0.12 g of O2 m⁻² d⁻¹.
Oxygen consumption increased linearly with mean hypolimnion thickness up to approximately 25 m.

Cite This Study

Müller et al. (2012) studied this question.

synapsesocial.com/papers/69de9b9e5e582bd3c5e93d9d https://doi.org/10.1021/es301422r

View Full Paper

Ask AI

Bookmark

Implication

Observational study reveals hypolimnetic oxygen depletion rates driven by benthic fluxes and water column thickness in eutrophic lakes, highlighting key targets for aquatic restoration.

Hypolimnetic Oxygen Depletion in Eutrophic Lakes

Discussion

Member takes

Implication

Key Points

Cite This Study

Hypolimnetic Oxygen Depletion in Eutrophic Lakes

Discussion

Member takes

Implication

Key Points

Cite This Study

Also Consider

Also Consider