Wyniki wyszukiwania - BazTech

1

Long term changes in the quality and water trophy of Lake Ińsko - the effect of the re-oligotrophication?

Kubiak Jacek, Machula Sylwia, Czerniejewski Przemysław, Brysiewicz Adam, Wawrzyniak Wawrzyniec

Journal of Water and Land Development

|

2021

|

no. 51

30--37

EN

In 1970-2010, during the period of spring circulation and summer stagnation, hydrochemical studies were conducted in Lake Ińsko (Western Pomeranian Lake Region, Poland) with determination of the lake susceptibility to degradation and trophic changes. Also, the effect of the catchment area on the water quality in this waterbody was assessed. The waters of the study lake were characterised by low static index, which is an additional indicator of low dynamics of water masses, and low susceptibility to degradation. In spite of this, significant changes in the lake quality and trophy were observed. The hydrochemical parameters defining water quality of the study lake continued to improve. In the 70’s, the water quality was at the border of class II and III, while in 2006 and 2010 it reached the level characteristic for class I waters. Moreover, in the 70’s and 80’s of the previous century, Lake Ińsko Duże was a mesotrophic lake. Then, an increase in the lake trophy was observed, resulting in signs of eutrophy. At the end of the 90’s and in the first decade of the 21st century, the study lake returned to the state of mesotrophy. No restoration works were undertaken in Lake Ińsko in the study period. The improvement in water quality, called oligotrophication, resulted most probably from the lake reaction to changes in the soil use in the catchment area, since fewer phosphorus and nitrogen compounds flow into the lake, and also from the regulation of the wastewater management in the town of Ińsko.

2

Operating difficulties of small water reservoir located in Wasilkow

Siemieniuk A., Szczykowska J, Wiater J

Journal of Ecological Engineering

|

2015

|

Vol. 16, nr 1

122--126

EN

When considering the issue of the functioning of small water reservoirs, the attempt to assess changes in trophy of small retention reservoir located in Wasilkow, Podlasie, before and after remediation, was carried out. Water samples tests were carried out once a month from April 2007 to March 2008, from April 2009 to March 2010 (before remediation), and from April 2013 to March 2014 (after removal of silt). Prior to works related to the reservoir remediation, a gradual increase in the number of tested contaminants and disturbances in the seasonal occurrence of nitrogen and phosphorus compounds were observed. Advanced eutrophic processes in Wasilków reservoir occur probably due to the supply of large amounts of humic and biogenic substances from the catchment, because a significant percentage of its area is covered by forests and agricultural lands. The development of the trophic status of the reservoir is largely influenced by the amount of phosphorus and total nitrogen supplied to the reservoir; the least affected by chlorophyll “a”. Comparing the analyses performed in 2007/2008 and 2009/2010, a slight, but growing trend of average trophic levels of water in the basin Wasilków was found. Studies conducted in 2013/2014 revealed a significant decrease in the concentrations of all analyzed pollutants, and hence lower TSI values. It can be concluded that the reclamation associated with the removal of sediments brought the expected results.

3

Sezonowa zmienność produkcji pierwotnej i respiracji fitoplanktonu w litoralu jeziora eutroficznego

Szymański D., Dunalska J. A., Jaworska B., Bigaj I., Zieliński R., Nowosad E.

Rocznik Ochrona Środowiska

|

2013

|

Tom 15, cz. 3

2573--2590

EN

Littoral zone is the first zone of the lake, which directly borders the land and is a barrier to substances flowing from the catchment. It can play an important role in the productivity of the entire ecosystem, with both production and degradation of organic carbon. The aim of this study was to determine the role of phytoplankton in primary production and respiration in the littoral zone, depending on the development of the basin. The research was conducted in the spring, summer and autumn at eight sites of littoral zone with a different level of the direct catchment area development: two sites (1, 2) in the western part of the lake, which is dominated by forests, three sites (3, 4, 5) in the northern part of the basin, dominated by wasteland and private recreational areas, two sites (6, 7) in the eastern, the most transformed by man and one site (8) located in the southern part of the lake near the outflow. The production volume of the primary and respiration were determined by the change of the oxygen concentration in water using the method of "light and dark bottles" exposed for 24 hours in the surface layer of water. The lake primary production was significantly lower in the littoral parts shaded by forest than in sites exposed to the sun, occurring in the northern part of the lake. The highest primary production with simultaneously high phytoplankton biomass was found at the site in the north. The additional factor intensifying the primary production was the nutrient inflow from the recreationally used land. The highest rate of respiration was recorded in not forested sites, located in the northeastern part of the lake, where the autochthonic and allochtonic organic matter was reduced to CO2. The results indicate a dual role of littoral in the metabolism of Lake Kortowskie. On the one hand, the littoral zone supplies the basin in autochthonic organic matter, on the other hand reduces the organic matter which was produced in the water column and was supplied from the catchment. One suspects that the actual primary production in the littoral zone of Lake Kortowskiego was higher because a significant cover the bottom of the macrophytes limited primary production of phytoplankton.

4

Plankton jako wskaźnik klasy czystości wody

Piontek M., Łuszczyńska K., Awińska-Więckowska A.

Zeszyty Naukowe. Inżynieria Środowiska / Uniwersytet Zielonogórski

|

2010

|

nr 140 (20)

50-73

PL

Na przełomie lipca, sierpnia i września obserwowano zróżnicowanie gatunkowe planktonu jeziora Droszków w województwie lubuskim, gminie Zabór. Ponadto wykonane zostały badania sanitarne wody jeziora przeprowadzone w Zakładzie Uzdatniania Wody (ZUW) w Zielonej Górze oraz badania fizykochemiczne przeprowadzone przez centralne laboratorium Instytutu Inżynierii Środowiska Uniwersytetu Zielonogórskiego. Celem prowadzonych obserwacji była ocena jakości wody jeziora Droszków i określenie metodą biologiczną jego klasy czystości. W drugiej połowie sierpnia zaobserwowano zakwit sinic. Gatunkiem dominującym były Mikrocystis flos-aque oraz Anabaena solitaria. Bardzo licznie występowały też złotowiciowce, a w szczególności Synura uvella i Dinobryon divergens. W prowadzonych badaniach skupiono się na określeniu stopnia klasy czystości wody jeziora poprzez obserwację mikroskopową planktonu. Dla porównania przydatności metody biologicznej wykonano badania fizykochemiczne i sanitarne. Wyniki przeanalizowano zgodnie z Rozporządzeniem Ministra Środowiska z dnia 11 lutego 2004 r. w sprawie klasyfikacji dla prezentowania stanu wód powierzchniowych i podziemnych, sposobu prowadzenia monitoringu oraz sposobu interpretacji wyników i prezentacji stanu tych wód (Dz. U. Nr 32, poz. 284).

EN

The purpose of the diploma paper was analyzing literature on the subject of trophy and eutrophication of water reservoirs, water quality in lubuskie province and review and description of water microorganisms and their place in a lake to perform biological analysis of water quality class based on the collected plankton samples. In July, August and September different species of plankton of the lake Droszków in Lubuskie province, commune Zabor were observed. Moreover sanitary tests of the lake were performed in Water Treatment Station (ZUW) in Zielona Góra and furthermore physicochemical tests were made by the central laboratory of the Institute of Environment Engineering of the University of Zielona Góra. The purpose of conducted observation was evaluation of the water quality of Droszków lake and specifying its quality class using biological method. In the second half of August cyanobacterial blooms was observed. The dominating species were Microcystis flos-aque and Anabaena solitaria. Numerous Chrysophyceae were also observed in particular Synura uvella and Dinobryon divergens. The conducted research focused on definition of the quality class of the lake water by microscopic observation of plankton. To compare the relevance of biological method also physicochemical and sanitary tests were made. The results were analyzed according to the Regulations of the Minister of Environment dated 11.02.2004 on classification the condition of surface and underground water, monitoring method and results interpretation and finally presentation of such water quality (J.o.L. No. 32, item 284).

5

Fitoplankton w ocenie trofii Zbiornika Koronowskiego

Wiśniewska M., Puszkiewicz K., Ziółkowski K.

Ekologia i Technika

|

2010

|

R. 18, nr 1

21-31

PL

Przeprowadzona w 2008 r. w Zbiorniku Koronowskim w obszarze jeziora Lipkusz analiza fyko-logiczna wykazała 91 taksonów glonów planktonowych (Cyanoprokaryota - 30, Pyrrophyta - 2, Euglenophyta - l, Chrysophyceae - 3, Bacilla-riophyceace - 21, Chlorophyta - 34). Biomasa w okresie wiosennym była tworzona głównie przez okrzemki, natomiast w okresie letnim - przez okrzemki i sinice. Na podstawie składu gatunkowego, biomasy fitoplanktonu, koncentracji chlorofilu-a i TSI zaliczono wody Zbiornika Koronowskiego ogólnie do typu eutroficznego z intensywną ekspansją sinic uznawanych za potencjalnie toksyczne.

EN

Algae analysis that was carried out in Koronowski Reservoir in 2008 shows 91 phytoplankton species (Cyanoprokaryota- 30, Pyrrophyta- 2, Euglenophyta- l, Chrysophyceae- 3, Bacillariophyceace- 21, Chlorophyta - 34). Biomass during the spring season was composed mainly by diatoms, but in the summer season by cyanobacteria and diatoms. In the strength of algae species composition, biomass, chlorophyll-a concentration and a Trophic State Index (TSI) - Koronowski Reservoir was generally classified as a eutrophic.

6

Charakterystyka hydrobotaniczna i siedliskowa jeziora kąpieliskowego zdominowanego przez roślinność ramienicową

Pukacz A., Pełechaty M., Pełechata A.

Ekologia i Technika

|

2004

|

R. 12, nr 6

214-218

PL

W sezonie wegetacyjnym 2003 przeprowadzono badania siedliskowe i hydrobotaniczne na śródmiejskim jeziorze kąpieliskowym, w środkowo-zachodniej Polsce. Badania siedliskowe, oparte na podstawowych parametrach fizyczno-chemicznych, wykazały dobrą kondycję ekologiczną oraz stosunkowo niski stan troficzny. Taki stan rzeczy potwierdzony został przez obliczony wskaźnik trofii TSI SD Carlsona (1977) oraz jakościową i ilościową analizą fltoplanktonu. Analiza fitocenotyczna wykazała, iż fitolitoral jeziora zdominowany jest przez roślinność ramienicową, która reprezentowana była przez 5 zespołów. Na uwagę zasługuje też fakt, iż 3 spośród stwierdzonych w jeziorze zbiorowisk ramienicowych (Charetum delicatulae, Charetum intermediae oraz Nitelletum opacae), uznawane są za rzadkie. Mimo, iż liczba zbiorowisk tworzonych przez halofity była największa (8 zespołów), nie stanowiły one znaczącego udziału w fitolitoralu. Najmniejszy udział stwierdzono w obrębie elodeidów (3 zespoły). Nie stwierdzono ponadto występowania nymfeidów. Uwzględniając powszechnie przyjętą rolę wskaźnikową makrofitów, uzyskane wyniki nie odzwierciedlają sposobu użytkowania jeziora oraz zdają się potwierdzać dobry stan ekologiczny całego ekosystemu.

EN

In the vegetation season 2003 habitat and hydrobotanical analyses of a lake located within the boundary of a small town and used for recreational purposes were undertaken. Although the catchment area is to a significant extent anthropogenically impacted, the phytolittoral zone is overgrown by the charophyte vegetation composed of large species. Besides, physical-chemical parameters allow recognizing good ecological conditions and low trophy level in the studied lake, at least in the year of study. Regarding the study results and considering the fact that in the late spring 2004 charophyte meadows were also abundantly developed, a kind of dynamic balance between the lake's usage and its natural resistance might be stated to be dependent on the charophyte dominance.

7

Wrotki (Rotifera) planktonowe w zapadlisku na rzece Łąkawce (Bojszowy - Jedlina)

Bielańska-Grajner I., Niesler A.

Archiwum Ochrony Środowiska

|

2002

|

Vol. 28, no. 4

81-88

PL

W okresie od marca do listopada 2000 roku badano wrotki planktonowe w zapadlisku Bojszowy -Jedlina. Stwierdzono bogatą faunę Rotifera w tym zbiorniku. Wśród 71 taksonów występował nowy dla Górnego Śląska gatunek Erignatha clastopis (Gosse). Skład jakościowy zgrupowania wrotków w tym zapadlisku różnił się od składu wrotków w innych badanych zapadliskach. Struktura dominacji i stałości zgrupowania wskazywała na zrównoważony charakter pomimo oznak wysokiej trofii.

EN

From March to November 2000 planctonic Rotifera of the collapse pond Bojszowy - Jedlina were studied. Rich fauna of Rotifera (71 taxons) was recorded. One new for Silesia Region species Erignatfia clas-topis (Gosse) was found. The qualitative composition of the Rotifera community in that pond differed from other investigated collapse ponds. In spite of high eutrophy domination and constance structure indicated staid character of the Rotifera community in the Bojszowy - Jedlina pond.

8

Cyanophyta blooms in Koronowski Reservoir in the background of environmental conditions

Wiśniewska M.

Oceanological Studies

|

1998

|

Vol. 27, No. 1

45-52

EN

On the basis of floristic analysis, the occurrence of 132 taxons of plankton algae in Koronowski Reservoir was determined. The spring and autumn plankton was dominated by diatoms, while summer plankton by blue-green algae. The species composition, structure of the abundance of algae and concentration of chlorophyll as well as physicochemical conditions of water suggested a highly eutrophic character of this reservoir with a starting expansion of blue-green algae, mainly species considered to be toxic.