Phosphorus release in Lake Großer Müggelsee and its implications for lake restoration

Kleeberg, Andreas; Kozerski, Hans‐Peter

doi:10.1007/978-94-011-5648-6_2

Cited by 60 publications

(52 citation statements)

References 41 publications

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“…Within-year patterns of nutrient concentration are those expected for eutrophic shallow lakes (Scheffer 1998). In these lakes, maxima of SRP and NH 3 -N concentrations along with sharp drops of NO 3 -N concentration can be observed in the summer due to a high microbial activity in the muddy sediments (Kleeberg & Kozerski 1997) and to the consequent decrease of oxygen concentration (Van Luijn et al 1999, Carvalho 1994. Sporadic high NO 2 -N concentrations usually occur when a large amount of fresh and easily degradable organic matter is mineralized (Colliver & Stephenson 2000, Leu et al 1998, Burns et al 1995.…”

Section: Discussionmentioning

confidence: 59%

Limnological aspects of an Apennine shallow lake

Ruggiero

Solimini²,

Carchini

2004

Ann. Limnol. - Int. J. Lim.

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We present the results of a four-years monitoring program of Lake Duchessa, a small shallow subalpine lake situated at 1788 m a.s.l. in central Apennines (Italy). From 1997 to 2000, during snow free periods, we regularly measured conductivity, pH, macrophyte cover and water transparency. Contemporarily, 4 water samples were collected to determine nutrient (NH 3 -N, NO 2 -N, NO 3 -N and PO 4 -P) and phytoplanktonic chlorophyll a concentrations. Taxonomic compositions of aquatic macrophytes, zooplankton and macroinvertebrates were also determined. Inter-and intra-annual variation of water chemistry and phytoplankton biomass were addressed. Lake Duchessa showed some limnological aspects proper to lowland eutrophic situations due to livestock grazing in the watershed pastures and watering in the lake. In particular, nutrient concentration and phytoplankton biomass reached extremely high values, and lake community was relatively poor. However, despite the high nutrient loading, phytoplankton biomass collapsed in August 1997. In the same occasion, lake water became transparent and remained clear until the end of 1999. The occurrence of this clear water phase and its surprising span may be related to the reduction of tench population (due to a natural fish kill observed during the study) and to the extension of Potamogeton pectinatus L. and Myriophyllum spicatum L. cover. Our results support early observations that water transparency (i.e. environmental quality) of eutrophic shallow lakes can be improved also when nutrient loading is not reduced. Many of the Apennine lakes and ponds situated at high altitudes show conditions similar to those of Lake Duchessa. Therefore this study highlights the ecological processes to be considered in a reliable management of these freshwater systems.

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Section: Discussionmentioning

confidence: 59%

Limnological aspects of an Apennine shallow lake

Ruggiero

Solimini²,

Carchini

2004

Ann. Limnol. - Int. J. Lim.

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“…Dense mats of filamentous algae induce anoxia in the sediments, which enabled phosphorus release from iron compounds (Søndergaard et al 2003). Kleeberg and Kozerski (1997) also reported that under experimental conditions the amount of phosphorus released increased after adding organic matter.…”

Section: Discussionmentioning

confidence: 90%

“…Increasing temperature still decomposed the organic matter, both allochthonous and autochthonous. The intensity of this process may cause the formation of thin anaerobic microlayers in sediments and, therefore, the reduction of sulfur compounds and the immobilization of Fe (Kleeberg and Kozerski 1997). However, in anaerobic conditions, as Sellig (2003) reported, bioavaiable forms of phosphorus are released, which can stimulate primary production, as well as the production of macroalgae.…”

Section: Discussionmentioning

confidence: 99%

Internal phosphorus loading from bottom sediments of a shallow preliminary reservoir

Dondajewska

2008

Oceanological and Hydrobiological Studies

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The aim of the studies done in a shallow preliminary reservoir (western Poland) was to determine the intensity and seasonal variability of phosphorus release from bottom sediments. Ex situ studies were done using intact sediment cores taken in succeeding seasons at 3 research stations. The highest phosphorus loading was observed in spring (May and April), both in 2005 and 2006. The range of loading was between 23.7 and 66.6 mgP m -2 d -1 . More intensive phosphorus release during warmer months was caused by microbiological decomposition of fresh organic matter, comprised of decaying filamentous algae from the previous vegetation season. Spatial variability resulted from differences in water depth between stations and in the biomass of filamentous green algae in 2005.1

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“…Thus, studies on improving water quality, via nonpoint and point pollutant attenuation schemes, have been carried out in Lake Taihu (Dou et al, 1995;Pu & Hu, 1996). While internal pollution and sediment/water interactions are stronger in shallow versus deep lakes (Threlkeld, 1994), internal loading may result from accumulation of pore water nutrients and subsequent release across the sediment-water interface in shallow lakes (Kleebery & Kozerski, 1997). Internal nutrient loading from sediments may have an equal or greater contribution than external loading from the watershed (Detenbeck et al, 1993).…”

Section: Introductionmentioning

confidence: 99%