Results 251 to 260 of about 17,394 (311)

The political economy of shallow lakes

open access: yes, 2007
Shallow lakes display hysteresis in their response to phosphorous loading. Gradual increases in the nutrient content of the lake can appear to have little effect on the oligotrophic state of the lake until a point at which the lake suddenly flips to a eutrophic state.
Salerno, Gillian   +2 more
openaire   +2 more sources

Alternative stable states in large shallow lakes?

open access: yesJournal of Great Lakes Research, 2014
Many lakes worldwide are experiencing great change due to eutrophication. Consequently, species composition changes, toxic algal blooms proliferate, and drinking water supplies dwindle. The transition to the deteriorated state can be catastrophic with an
Annette B G Janssen   +2 more
exaly   +2 more sources

Alternative equilibria in shallow lakes

Trends in Ecology & Evolution, 1993
The turbidity of lakes is generally considered to be a smooth function of their nutrient status. However, recent results suggest that over a range of nutrient concentrations, shallow lakes can have two alternative equilibria: a clear state dominated by aquatic vegetation, and a turbid state characterized by high algal biomass.
Scheffer, M.   +4 more
openaire   +3 more sources

Relationships between microcystins and environmental parameters in 30 subtropical shallow lakes along the Yangtze River, China

open access: yesFreshwater Biology, 2006
1. A survey of 30 subtropical shallow lakes in the middle and lower reaches of the Yangtze River area in China was conducted during July-September in 2003-2004 to study how environmental and biological variables were associated with the concentration of ...
Xie, P.   +5 more
exaly   +2 more sources

Submerged macrophyte decline in shallow lakes: What have we learnt in the last forty years? [PDF]

open access: yesAquatic Botany, 2016
Over the last 40 years there has been substantial evidence that high biomasses of submerged aquaticplants and phytoplankton rarely occur together in shallow lakes, but it is clear that when present, plantshave a competitive advantage over algae.
Geoff Phillips, Nigel J Willby
exaly   +2 more sources

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