Interannual Variability of Cyanobacterial Blooms in Lake Erie
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After a 20-year absence, severe cyanobacterial blooms have returned to Lake Erie in the last decade, in spite of negligible change in the annual load of total phosphorus (TP), according to medium-spectral Resolution Imaging Spectrometer (MERIS) imagery.Abstract:
After a 20-year absence, severe cyanobacterial blooms have returned to Lake Erie in the last decade, in spite of negligible change in the annual load of total phosphorus (TP). Medium-spectral Resolution Imaging Spectrometer (MERIS) imagery was used to quantify intensity of the cyanobacterial bloom for each year from 2002 to 2011. The blooms peaked in August or later, yet correlate to discharge (Q) and TP loads only for March through June. The influence of the spring TP load appears to have started in the late 1990 s, after Dreissenid mussels colonized the lake, as hindcasts prior to 1998 are inconsistent with the observed blooms. The total spring Q or TP load appears sufficient to predict bloom magnitude, permitting a seasonal forecast prior to the start of the bloom.read more
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Journal ArticleDOI
Record-setting algal bloom in Lake Erie caused by agricultural and meteorological trends consistent with expected future conditions
Anna M. Michalak,Eric J. Anderson,Dimitry Beletsky,Steven Boland,Nathan S. Bosch,Thomas B. Bridgeman,Justin D. Chaffin,Kyung Hwa Cho,Rem Confesor,Irem Daloğlu,Jospeh DePinto,Mary Anne Evans,Gary L. Fahnenstiel,Lingli He,Jeff C. Ho,Liza K. Jenkins,Liza K. Jenkins,Thomas H. Johengen,Kevin C Kuo,Elizabeth LaPorte,Xiaojian Liu,Michael McWilliams,Michael R. Moore,Derek J. Posselt,R. Peter Richards,Donald Scavia,Allison L. Steiner,Edward M. Verhamme,David M. Wright,Melissa A. Zagorski +29 more
TL;DR: It is shown that long-term trends in agricultural practices are consistent with increasing phosphorus loading to the western basin of the lake, and that these trends, coupled with meteorological conditions in spring 2011, produced record-breaking nutrient loads.
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TL;DR: In this paper, recent trends in key eutrophication-related properties, assess their likely ecological impacts, and develop load response curves to guide revised hypoxia-based loading targets called for in the 2012 Great Lakes Water Quality Agreement.
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Journal ArticleDOI
The re-eutrophication of Lake Erie: Harmful algal blooms and hypoxia.
Susan B. Watson,Carol J. Miller,George B. Arhonditsis,Gregory L. Boyer,Wayne W. Carmichael,Murray N. Charlton,Remegio Confesor,David C. Depew,Tomas O. Höök,Stuart A. Ludsin,Gerald Matisoff,Shawn P. McElmurry,Michael Murray,R. Peter Richards,Yerubandi R. Rao,Morgan M. Steffen,Steven W. Wilhelm +16 more
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