Assessing and addressing the re-eutrophication of Lake Erie: Central basin hypoxia
- Scavia, Donald
- David Allan, J.
- Arend, Kristin K.
- Bartell, Steven
- Beletsky, Dmitry
- Bosch, Nate S.
- Brandt, Stephen B.
- Briland, Ruth D.
- Daloğlu, Irem
- DePinto, Joseph V.
- Dolan, David M.
- Evans, Mary Anne
- Farmer, Troy M.
- Goto, Daisuke
- Han, Haejin
- Höök, Tomas O.
- Knight, Roger
- Ludsin, Stuart A.
- Mason, Doran
- Michalak, Anna M.
- Peter Richards, R.
- Roberts, James J.
- Rucinski, Daniel K.
- Rutherford, Edward
- Schwab, David J.
- Sesterhenn, Timothy M.
- Zhang, Hongyan
- Zhou, Yuntao
DOIAbstract
AbstractRelieving phosphorus loading is a key management tool for controlling Lake Erie eutrophication. During the 1960s and 1970s, increased phosphorus inputs degraded water quality and reduced central basin hypolimnetic oxygen levels which, in turn, eliminated thermal habitat vital to cold-water organisms and contributed to the extirpation of important benthic macroinvertebrate prey species for fishes. In response to load reductions initiated in 1972, Lake Erie responded quickly with reduced water-column phosphorus concentrations, phytoplankton biomass, and bottom-water hypoxia (dissolved oxygen <2mg/l). Since the mid-1990s, cyanobacteria blooms increased and extensive hypoxia and benthic algae returned. We synthesize recent research lead...
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