Wyniki wyszukiwania - BazTech

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Microbiome dynamics modeling and analysis in relation to spatio-temporal changes in physicochemical conditions of the water ecosystem

Woźnica Andrzej, Kwaśniewski Mirosław, Chwiałkowska Karolina, Łozowski Bartosz, Absalon Damian, Libera Marcin, Krzyżowski Michał, Babczyńska Agnieszka

Archives of Environmental Protection

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2022

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Vol. 48, no. 1

18--30

EN

In this paper, we consider the development of reliable tools to assess the water quality and state of aquatic ecosystems in dynamic conditions a crucial need to address. One of such tools could be devised by monitoring the taxonomic structure of reservoirs’ microbiomes. Microbial taxa’s ecological and metabolic characteristics suggest their essential roles in maintaining the water ecosystem’s environmental equilibrium. The study aimed to explain the role of diversity and seasonal variability of the microbial communities in the ecosystem stability on the example of Goczałkowice Reservoir (Poland). The structure of the reservoir microbiome was studied using bioinformatics and modeling techniques. Water was sampled periodically in July & November 2010, and April 2011 at four representative sites. The abundance and relative fraction of the limnetic taxonomic units were determined in respect to the physicochemical indices. Significant seasonal variations in the number of operational taxonomic units (OTU) were observed within the reservoir basin’s main body but not at the main tributary’s mouth. The highest values of the correlation coefficients between OTU and physicochemical variables were obtained for Burkholderiales, Pseudoanabenales, Rickettsiales, Roseiflexales, Methylophilales, Actinomycetales, and Cryptophyta. These microorganisms are proposed as indicators of environmental conditions and water quality. Metataxonomic analyses of the freshwater microbiome in the reservoir, showed that microorganisms constitute conservative communities that undergo seasonal and local changes regarding the relative participation of the identified taxa. Therefore, we propose that monitoring those variations could provide a reliable measure of the state of aquatic ecosystems.

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Stress proteins concentration in caged Cyprinus carpio as a tool to monitor ecological stability in a model dam reservoir

Babczyńska Agnieszka, Tarnawska Monika, Łaszczyca Piotr, Migula Paweł, Łozowski Bartosz, Woźnica Andrzej, Irnazarow Ilgiz, Augustyniak Maria

Archives of Environmental Protection

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2021

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Vol. 47, no. 1

101--111

EN

Variability of stress proteins concentration in caged carp exposed to transplantation experiment model dam reservoir was caused only by natural (climatic and biological) conditions. Thus, the reference data of stress proteins concentration range in young carp individuals were obtained. Metallothionein, HSP70 and HSP90 protein concentrations as biomarkers were assayed in the livers, gills and muscles of six-month-old (summer) or nine-month-old (autumn) carp individuals in relation to the site of encaging, season (summer or autumn), the term of sampling (1, 2 or 3 weeks after the transplantation) and tissue. Physicochemical analyses of the condition of water as well as pollution detection were conducted during each stage of the experiment. As the result of this study, the range of the variability of the stress protein concentration in young carp individuals was obtained. According to the analyses of the aquatic conditions of a reservoir with no detectable pollutants, we conclude that the variability in the stress protein concentration levels in the groups that were compared is solely the result of the natural conditions. Future regular monitoring of the reservoir using the transplantation method and young carp individuals will be both possible and reliable. Moreover, the range of variability in the stress protein concentrations that were measured in the young C. carpio individuals acquired from the model dam reservoir in relation to all of the studied factors may be applied in the monitoring of any other similar reservoir.

3

Sposób analizy stanu wód w śląskich jeziorach

Woźnica Andrzej, Łozowski Bartosz, Pasierbiński Andrzej, Siudy Andrzej, Libera Marcin, Absalon Damian, Jarosz Wanda

Przegląd Komunalny

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2019

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nr 7

33--36

PL

Identyfikacja przyczyn złego stanu wód zbiorników wymaga szczegółowego sprawdzenia stanu środowiska, sposobu zagospodarowania zlewni oraz rozpoznania i oceny presji oddziałujących na analizowany obszar. Metodą, która porządkuje sposób postępowania przy takiej analizie, jest procedura DPSIR.

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Gospodarka wodna w Górnośląsko-Zagłębiowskiej Metropolii

Absalon Damian, Matysik Magdalena, Woźnica Andrzej, Łozowski Bartosz

Przegląd Komunalny

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2019

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nr 9

54--57

PL

Działania w zakresie polityki przestrzennej w miastach muszą uwzględniać konsekwencje zmian klimatycznych. Ich wynikiem powinny być m.in. adaptacja instalacji sanitarnych i sieci kanalizacyjnych do zwiększonych opadów nawalnych, tworzenie małej retencji miejskiej oraz zwiększenie powierzchni terenów zieleni i powierzchni wodnych w mieście, np. przez renaturalizację zbiorników wodnych.