Water quality response to sustainable restoration measures – Case study of urban Swarzędzkie Lake

Rosińska, Joanna; Kozák, Anna; Dondajewska, Renata; Kowalczewska‐Madura, Katarzyna; Gołdyn, Ryszard

doi:10.1016/j.ecolind.2017.09.009

Cited by 51 publications

(51 citation statements)

References 53 publications

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“…l -1 ) during winter season. Similar findings were reported by Tiwari & Chauhan 41 and Rosińska et al 43 Increased temperature and long photoperiod in summer supports the increased Chlorophyceae diversity. 39 After the summer season, second highest density of Cyanophyceae was seen in monsoon season (121.5±20.5 ind.…”

Section: Cyanophyceaesupporting

confidence: 90%

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2018

BIJ

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The study deals with the assessment of physico-chemical parameters and phytoplankton diversity of Nachiketa Tal. The lake was monitored for one annual cycle (May 2014-April 2015). A total of 71 taxa of phytoplankton belonging to 57 genera were recorded. Phytoplankton in the lake are represented by six major families, Bacillariophyceae (22), Chlorophyceae (37), Cyanophyceae (6), Xanthopyceae (2), Dinophyceae (2) and Euglenophyceae (2). The overall phytoplankton density was found to be abundant (1401±325.60 ind. l-1) in winter season, declined in monsoon season (457.50±17.83 ind. l-1) but the population of Cyanophyceae and Euglenophyceae was found to be high (174.33±37.09 ind. l-1) and (24.33±5.89 ind. l-1) respectively in summer season. Results showed that the increases in turbidity, TDS in monsoon season are the driving factors for decreasing the phytoplankton density in the lake. Pearson's correlation and CCA calculated between environmental variables and phytoplankton diversity showed that the distribution of phytoplankton in the lake is dependent on the variabilities of physico-chemical variables.

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Section: Cyanophyceaesupporting

confidence: 90%

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2018

BIJ

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“…Its application in lake restoration together with other methods results in water quality improvement of i.a. Swarzędzkie Lake [33,34] and contributed to changes in the TN:TP ratio, indicating phosphorus deposition in sediments in other lakes [30]. Nevertheless, hypolimnetic aeration seems to be a supportive, rather than the main restoration method, helping to alleviate eutrophication symptoms, thus its combination with other methods is crucial.…”

Section: Oxygen Conditions As a Results Of Hypolimnetic Aerationmentioning

confidence: 99%

Long-Term Water Quality Changes as a Result of a Sustainable Restoration—A Case Study of Dimictic Lake Durowskie

Dondajewska

Kowalczewska‐Madura

Gołdyn

et al. 2019

Water

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Nature-based solutions in lake restoration enable gradual ecosystem reconstruction without drastic and expensive intervention. Sustainable lake restoration involves limited external interference strong enough to initiate and maintain positive changes in the ecosystem. It was introduced in Lake Durowskie, an urban, flow-through lake situated in Western Poland, using hypolimnetic aeration, phosphorus precipitation with small doses of chemicals and biomanipulation in 2009, and is continued until today. Oxygen conditions in the lake hypolimnion after initial deterioration were gradually improved, and finally a shortening of the duration and range of oxygen deficits was observed. Nitrogen transformations were induced in the hypolimnion by water aeration as well, reducing ammonium N (30% during 2013–2017 in comparison to 2008) and increasing nitrates (90% in 2013–2017 in comparison to 2008). Phosphorus content was diminished (19% during 2015–2017 in relation to 2008 for SRP) due to effective iron-binding and a smaller amount of fresh organic matter being decomposed. Its reduction was related to lower phytoplankton biomass, expressed in a decrease of chlorophyll-a concentrations (55% reduction during 2013–2017 in comparison to 2008) and an increase in water transparency (two-fold during 2013–2017 in relation to 2008) throughout the nine years of treatment. A long-term restoration program, based on non-aggressive, multiple in-lake techniques was applied and, despite the lack of a reduction in total external loading, was able to suppress progressive eutrophication.

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“…The condition for the effectiveness of the process, however, is a well-planned design of the application, taking into account the required doses and the potential environmental risk associated with the use of acidic salts of these elements, especially aluminum, which, as an amphoteric element, can be toxic to hydrobionts in water. Nevertheless, the experience of scientists in Poland [28][29][30][31][32] and in the world [25,26] indicate that the above treatments can effectively and permanently revitalize the lake ecosystem.…”

Section: Resultsmentioning

confidence: 99%

Interstitial Water of Deep, Stratified Lake as Potential Source of Internal Phosphorus Loading - Implications for Preventing Eutrophication

Łopata¹,

Tandyrak²,

Augustyniak³

et al. 2019

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The paper evaluates the potential impact of internal biogenic pollutants (phosphorus) on the trophic state of the deep, stratified Lake Swiete in Obra, Poland (area 23.3 ha, depth 15.3 m). The amount of phosphorus in interstitial water was analyzed on the basis of spatial studies of 10 cm of surface sediments of bottom sediments. It has been shown that the release of loading accumulated in the water can worsen the trophic state of the lake.

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Water quality response to sustainable restoration measures – Case study of urban Swarzędzkie Lake

Cited by 51 publications

References 53 publications

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Long-Term Water Quality Changes as a Result of a Sustainable Restoration—A Case Study of Dimictic Lake Durowskie

Interstitial Water of Deep, Stratified Lake as Potential Source of Internal Phosphorus Loading - Implications for Preventing Eutrophication

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