Internal phosphorus loading in selected lakes of the Cybina River valley

Kowalczewska‐Madura, Katarzyna; Dondajewska, Renata; Gołdyn, Ryszard

doi:10.2478/v10009-010-0035-3

Cited by 5 publications

(5 citation statements)

References 14 publications

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“…These results coincide with the results of a study of the nutrients from Curonian Lagoon and their impact on the ecosystems of the Curonian Lagoon, which were presented on 10-01-2017 [14]. However, Kowalczewska-Madura et al [32] found that phosphorus release from sludge continues throughout the year in deeper lake areas. Slightly higher values were observed only at the beginning of summer and autumn, and the emitted phosphorus remained in the water layer near the bottom for a long time.…”

Section: Discussionsupporting

confidence: 88%

“…Factors that promote phosphorus release include temperature, pH, concentration of oxygen in the sludge and water layer above the sludge [47], redox potential, type of chemical compounds containing phosphorus, concentrations of Fe, Mn, Al and Ca [38,43,48], bioturbation by microinvertebrates [49] and structure of the bottom sediment [50]. The deposition of phosphorus from sludge to water and its transfer to the trophogenic zone may be more intense than its sorption and deposition [32].…”

Section: Discussionmentioning

confidence: 99%

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Analysis of Biogenic Secondary Pollution Materials from Sludge in Surface Waters

Česonienė

Mažuolytė-Miškinė

Šileikienė

et al. 2019

IJERPH

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Many countries of the world, including Lithuania, are making an effort to reduce surface water pollution. State monitoring data show that almost 80% of the lakes in Lithuania have an increased amount of sludge. One of the reasons for this increase in sludge is an excessive amount of biogenic material in the water. It is known that even after the source of pollution is removed, the condition of the lake water does not improve; rather, the condition of the lake water worsens due to the secondary pollution of sludge in the water. A study was conducted to determine the impact of secondary sludge pollution on water. For this study, 5 sludge samples were taken from different lakes in Lithuania. Fresh water was poured on the sludge samples, the concentrations of Nt, NO2-N, NO3-N, NH4-N, PO4-P, Pt, the pH and the changes in the electric conductivity (C) were measured in the water within 28 h. Research has shown that the thickness of the sludge layer influences the total amounts of nitrogen, phosphorus, and organic matter present in the sludge. As the thickness of the sludge layer increases in a lake, the total concentrations of nitrogen, total phosphorus and organic matter increase. Studies have also shown that the concentrations of all biogenic substances in water increase, with the exception of total phosphorus. This finding shows that organic phosphorus is "locked" in sludge, and no secondary pollution occurs from this source. Moreover, the electrical conductivity values of the water influence the release of biogenic substances from sludge in the water.

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Section: Discussionsupporting

confidence: 88%

Section: Discussionmentioning

confidence: 99%

Analysis of Biogenic Secondary Pollution Materials from Sludge in Surface Waters

Česonienė

Mažuolytė-Miškinė

Šileikienė

et al. 2019

IJERPH

View full text Add to dashboard Cite

show abstract

“…In trying to exploit natural mechanisms of self-regulation, we make the ecosystem less prone to serious disturbance. Most data relating to the internal loading of lakes concerns shallow water bodies (e.g., Kozerski and Kleeberg 1998 ; Søndergaard et al 2001 ; Dondajewska 2008 ; Kowalczewska-Madura and Gołdyn 2009 ; Joniak and Kuczyńska-Kippen 2010 ; Kowalczewska-Madura et al 2010 ), but little is known about the release of phosphorus from deep, dimictic lakes (e.g., Kleeberg 1997 ; Murphy et al 2001 ), especially those subjected to restoration treatments (Kowalczewska-Madura et al 2015 ).…”

Section: Introductionmentioning

confidence: 99%

Internal Phosphorus Loading from the Bottom Sediments of a Dimictic Lake During Its Sustainable Restoration

Kowalczewska‐Madura

Dondajewska

Gołdyn

et al. 2018

Water Air Soil Pollut

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The ribbon type Lake Durowskie (Western Poland) is currently undergoing a sustainable restoration process due to water quality deterioration, manifested in water blooms, low transparency, and oxygen deficits near the bottom sediments. Three restoration methods were applied: (i) hypolimnion aeration using two wind-driven pulverizing aerators installed at the deepest places, (ii) phosphorus inactivation using small doses of iron sulfate and magnesium chloride several times a year, and (iii) biomanipulation using pike fry stocking. Research on the exchange of phosphorus in the sediment-water interphase was conducted in the years 2009–2016 to determine the multiannual changes of internal phosphorus loading from bottom sediments during the restoration process. The sustainable approach resulted in a decrease of internal phosphorus loading and a gradual increase in the sorption capacity of bottom sediments, particularly noticeable in the last 2 years. The content of phosphorus in the sediment and in the interstitial water fluctuated, showing an increase during the first years of restoration and then a gradual decrease. It was proved that the process of sustainable restoration is cheap and does not interfere strongly with the ecosystem, although it is long-lasting. It should be continued for many years, especially in the case of continuous external loading of the lake with nutrients from the catchment area, i.e., until the water quality in the main tributary improves and the lake ecosystem stabilizes.

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“…Temperature affects the formation and abundance of heterocysts in both Dolichospermum and Aphanizomenon [ 50 ] and is important for phosphorus and ammonia concentrations. Experimental studies conducted at 16 °C have shown that phosphorus can be released from sediments under aerobic and anaerobic conditions, and the processes were more intense under anaerobic conditions [ 51 ]. Therefore, the threshold of 16 °C for A. flos-aquae and D. planctonicum could be related to the release of phosphorus or to the ammonia concentration, which was significant in the 5% of samples dominated by A. flos-aquae .…”

Section: Discussionmentioning

confidence: 99%

Non-Nitrogen-Fixers or Nitrogen-Fixers? Factors Distinguishing the Dominance of Chroococcal and Diazotrophic Cyanobacterial Species

Wilk‐Woźniak

Szarek-Gwiazda

Walusiak

et al. 2022

IJERPH

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Global warming and eutrophication are the main factors driving the development of cyanobacterial dominance in aquatic ecosystems. We used a model linking water temperature, oxygen saturation, concentrations of PO43−, NO3−, NH4+, total dissolved iron (TDFe), and SO42− to cyanobacteria to test the turnover patterns of cyanobacterial dominance of non-nitrogen-fixing (chroococcal species) and nitrogen-fixing (filamentous diazotrophic) species. Statistical analysis was performed using decision trees. The dominance patterns of the two morphologically and ecologically distinct cyanobacterial species were associated with different environmental factors. However, SO42− was the most important factor that explained whether non-nitrogen-fixing or nitrogen-fixing species would dominate. Other important factors were water temperature, phosphate concentration, and oxygen saturation. The model for dominance of non-nitrogen-fixing species used SO42−, PO43−, and water temperature (upper layers), and SO42−, the ratio of PO43−/NH4+, and oxygen saturation (bottom layers). In contrast, water temperature, SO42−, and NH4+ in the upper layers and SO42−, NH4+, and water temperature in the bottom layers were used for the dominance of nitrogen-fixing species. The dominance of Aphanizomenon flos-aquae was explained by different sets of variables, indicating the presence of different strains of this species. The other cyanobacteria species showed dominance patterns that could be explained by one set of variables. As cyanobacterial blooms proliferate due to climate change, it is important to know which factors, in addition to phosphorus and nitrogen, are crucial for the mass development of the various cyanobacterial species.

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Internal phosphorus loading in selected lakes of the Cybina River valley

Cited by 5 publications

References 14 publications

Analysis of Biogenic Secondary Pollution Materials from Sludge in Surface Waters

Analysis of Biogenic Secondary Pollution Materials from Sludge in Surface Waters

Internal Phosphorus Loading from the Bottom Sediments of a Dimictic Lake During Its Sustainable Restoration

Non-Nitrogen-Fixers or Nitrogen-Fixers? Factors Distinguishing the Dominance of Chroococcal and Diazotrophic Cyanobacterial Species

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