Turkusowe Lake (Wolin Island, Poland) - Surface Waters Quality Changes in Years 1986-2010

Poleszczuk, G.; Svobodová, Zdeňka; Bucior-Kwaczyńska, Anna; Miller, Tymoteusz

doi:10.2478/eces-2014-0016

Cited by 3 publications

(2 citation statements)

References 15 publications

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“…This contributed to strong eutrophication, causing increasingly frequently observed in many lakes algal blooms -using oxygen for breathing, which is then necessary for their decomposition [24]. The effect of anthropopressure can change the trophic status of lakes, even those resistant to degradation over a period of several years [25]. Lake sediments are a particular threat to lakes.…”

Section: Resultsmentioning

confidence: 99%

Variability of Oxygen-Thermal Conditions in Selected Lakes in Poland

Ptak

Nowak

2016

Ecological Chemistry and Engineering S

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Dissolved oxygen in water (DO) is one of the primary parameters determining its quality. It remains in close relation to water temperature. The article presents results of DO and water temperature measurements performed for five stratified lakes in Poland in the years 2007-2014. The measurements were performed with monthly frequency in the summer half-year (May-October) in the deepest place of each of the lakes. The compared data show the complex character of the course of both of the parameters. The analysis of depth profiles revealed the prevalence of a decreasing tendency, or no tendency was recorded -both in the case of DO and water temperature. Due to the incoherent character of the water in the case of stratified lakes, a more detailed comparison was performed, referring to changes occurring in zones developed during summer stratification. It was determined that the temperature of the epilimnion was directly dependent on air temperature, and in all cases it showed an increasing tendency. Simultaneously, along with an increase in temperature, in the majority of cases, DO concentration in the zone decreased. In reference to the waters of the hypolimnion, increasing, decreasing, and no tendencies were recorded. The above distribution is determined by individual factors of the lakesmorphometry, trophic status, groundwater alimentation, etc. Several years of measurements of DO and water temperature in depth profiles of several lakes in Poland constitute valuable information on the current transformations of the environment of this part of Europe. In the future, the information can provide the basis for long-term analyses over the next decades, enriching global knowledge on those parameters of key importance for water ecosystems.

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Section: Resultsmentioning

confidence: 99%

Variability of Oxygen-Thermal Conditions in Selected Lakes in Poland

Ptak

Nowak

2016

Ecological Chemistry and Engineering S

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“…The collected data can be analyzed descriptively, as performed in this study as well as in overall practice [45,46] and -with chemometric methods as presented in these paper.…”

Section: Resultsmentioning

confidence: 99%

Glebokie Lake in Szczecin after hydrotechnical regulations

Miller

Svobodová

Meller

et al. 2016

Ecological Chemistry and Engineering S

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Water quality of the Glebokie Lake in Szczecin (NW-Poland) was studied in years 2012-2014. Glebokie Lake is a reservoir with a negative water balance related to the location draining groundwater drinking water intake for Szczecin agglomeration. In 2004 hydrotechnical regulations were conducted aimed at maintaining a constant amount of water in the lake, which involved a temporary feeding Glebokie Lake with Gunica River waters. In order to determine the hydrochemical status of the Lake waters and the factors shaping water quality -19 water quality indices within 25 months were measured: temperature, pH and water oxygen status, nutrients (N, P) and ionic macrocomponents and Fetot. Trophic status of the lake waters using the Carlson criteria was defined. On the basis of chemometric analysis of measurement data (CA, PCA/FA and DA) we established that statistically significant factors affecting water quality in the study period were: seasonal (the climatic seasons) changes in the biological processes activity, periodical (in April and November) waters inflows from the Gunica River, anthropopressure in during swimming season and the coagulant (FeSO4) presence in the ecosystem. The possibility of applying the chemometric techniques to interpret measurement data in the lake type like Glebokie Lake with a small amount of data has been shown.

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