The relationship between chrysophyte cyst assemblages and meteorological conditions: Evidence from a sediment-trap study in northeast Poland

Szczerba, Agnieszka; Pla-Rabés, Sergi; Żarczyński, Maurycy; Tylmann, Wojciech

doi:10.1016/j.ecolind.2021.108395

Cited by 4 publications

(5 citation statements)

References 52 publications

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“…More intense water mixing, high turbidity, changes in nutrient balance and light conditions in the water column, associated with the lack of ice cover, were not strong enough to induce more pronounced changes in total fluxes, which, in contrast, were observed in mildly eutrophic lakes. Szczerba et al (2021Szczerba et al ( , 2023 demonstrated that in two Polish lakes, Łazduny and Rzęśniki, which are characterised by lower productivity than Lake Żabińskie, diatom and chrysophyte cyst fluxes were more profoundly influenced by exceptional conditions from 2020. Not only were total fluxes very low, but also no distinctive peaks were recorded.…”

Section: Biotic Response To Changes In Mixing Regimementioning

confidence: 99%

“…Most recent studies concerning diatom and cyst seasonality pointed to changes in patterns of total fluxes in lakes of various trophic states, from dystrophic to mesotrophic (Kienel et al, 2017;Maier et al, 2019;Szczerba et al, 2021Szczerba et al, , 2023. In eutrophic Lake Żabińskie, diatom and chrysophyte cyst composition consist of species tolerant to high nutrient level, high turbidity, and limited light availability.…”

Section: Biotic Response To Changes In Mixing Regimementioning

confidence: 99%

“…Similar to diatoms, they are widely distributed and well preserved in lake sediments. Several studies showed the application of these organisms in climatic studies, pointing to both direct and indirect relationship with meteorological conditions through changes in the lake stratification patterns (Hernández-Almeida, Grosjean, Przybylak, & Tylmann, 2015;Hernández-Almeida, Grosjean, Tylmann, & Bonk, 2015;Pla & Catalan, 2005;Pla-Rabes & Catalan, 2011;Szczerba et al, 2021Szczerba et al, , 2023.…”

Section: Introductionmentioning

confidence: 99%

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Control of diatom and chrysophyte cyst dynamics by a meteorologically driven mixing regime in eutrophic Lake Żabińskie, northern Poland

2023

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Ongoing climate warming has strong moderating control over aquatic processes, such as ice cover duration, length of the growing season, vertical mixing patterns, thermal stratification, and the availability of light and nutrients. These fundamental mechanisms in turn influence the population dynamics of aquatic organisms such as diatoms and chrysophytes. In our study, over 3.5 years with contrasting meteorological conditions, we investigated eutrophic Lake Żabińskie located in northeast Poland. By combining observational data of meteorological conditions, physicochemical variables measured in the water column, and modern sedimentation, we sought to explain the relationships between changes in meteorological conditions, dynamics of total fluxes and the taxonomic composition of diatoms and chrysophyte cysts. Our results show the direct influence of meteorological conditions on physicochemical conditions and their indirect influence on total diatom and chrysophyte cyst fluxes and taxonomic succession. The former refers to the importance of air temperature and wind speed in shaping the mixing regime of Lake Żabińskie, while the latter refers to the nutrient cycling driven by changes in the mixing regime, which in turn influences the formation of biotic signals in the sediment. Our study also revealed that the biotic response to unusual meteorological conditions that occurred in 2020 (i.e., warm winter without ice cover) differed from typical years in terms of the phenology of diatom and chrysophyte cyst blooms. However, this response was not as pronounced as in lakes with lower productivity and can be attributed to the already turbid conditions and high nutrient concentrations, which alter the threshold for noticeable changes to occur. The taxonomic composition of diatoms and chrysophyte cysts also changed in response to changes in meteorological conditions. Complex interactions between physical and chemical conditions masked the direct influences of meteorological conditions on lake biota under eutrophic conditions. Nevertheless, high‐resolution monitoring enabled indirect links to be recognised. Both phenology and turnover in community composition responded to changes in meteorological conditions. These results show how ongoing climate change might affect biota in eutrophic lakes in the future.

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Section: Biotic Response To Changes In Mixing Regimementioning

confidence: 99%

Section: Biotic Response To Changes In Mixing Regimementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Control of diatom and chrysophyte cyst dynamics by a meteorologically driven mixing regime in eutrophic Lake Żabińskie, northern Poland

2023

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“…Betts-Piper et al, 2004;Buczkó et al, 2018). The relationships between chrysophyte cysts and changes in meteorological conditions was tested and validated by Szczerba et al (2021). But we must bear in mind during the evaluation of results that not only silica-scaled chrysophytes produce stomatocytes, but also chrysophytes belonging to non-scaled lineage (Bazhenova & Igoshkina 2020).…”

Section: Environmental Monitoringmentioning

confidence: 99%

Contribution of silica-scaled chrysophytes to ecosystems services: a review

et al. 2022

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Silica-scaled chrysophytes are a unique group of protists representing a major component of numerous aquatic habitats where they can significantly contribute to human well-being in many ways. In the present review, altogether 14 ecosystem services provided by silica-scaled chrysophytes were identified highlighting their importance and roles in aquatic ecosystems. The most important supporting services are related to primary production, nutrient- and biogeochemical cycling, as well as sediment formation. Additionally, they are involved in the regulation of climate, maintenance of air quality, biological control and water purification processes (as regulating services). The most relevant provisioning services include their usefulness in environmental monitoring (paleolimnology, ecological status assessment and climate modelling), production of biochemicals and provision of genetic resources. Cultural services are associated with aesthetic values, inspiration source and knowledge system as well. Although silica-scaled chrysophytes are one of the least studied groups of algae, here they are shown to provide important benefits and to have many further powerful opportunities for humans, thus their detailed research in the future is emphasised as an important key for human well-being.

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“…Climate changes influence physical characteristics of lakes, such as water temperature, rate of evaporation, or stretch of ice cover, which, in turn, modify lake mixing regimes, and these impact chemical parameters (pH, ionic composition, electrical conductivity, nutrient concentration, etc.) and effectively biological indicators (e.g., diversity and abundance of plankton species) of lake environments [4][5][6][7]. Freshwater bodies cover just over 3% of the Earth's surface [8], whereas they cover only 1% in Poland [1], which represents one of the factors that place Poland at the forefront of European countries with the lowest freshwater resources [9].…”

Section: Introductionmentioning

confidence: 99%

History of Environmental and Climatic Changes Recorded in Lacustrine Sediments—A Wigry Lake Case Study

Kostka

2023

Sustainability

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Wigry Lake represents one of the most beautiful and valuable postglacial lakes that is located in the north-eastern part of Poland. It has been an object of scientific interest for over a century, but the most intense period of research started in 1997 and resulted in the production of numerous papers of a multidisciplinary range. The lake is especially well analyzed in terms of its sediments, which were studied using geophysical methods and using traditional lake cartography based on the sampling of sediments and their geochemical characterization. Nearly two decades of research has resulted in the extraction of over 1200 sediment samples, which facilitated the analysis and the description of five main sediment types that can be found at the bottom of Wigry Lake, i.e., carbonate gyttja, lacustrine chalk, clastic sediment, fluvial-lacustrine sediment, and organic gyttja. A very thorough vertical as well as spatial examination of Wigry Lake sediments, together with paleobiological research and isotopic dating, allowed researchers to analyze the history of environmental changes in the lake and its immediate vicinity, including anthropogenic changes. Wigry Lake had been preserved as a pristine lake for a long time, and, despite the significant growth of anthropopressure, which began in the 17th century and intensified in the 20th century, it retained its natural character to a large extent. This was possible mainly due to the favorable morphometry of the lake (large depth and capacity of the reservoir) and different forms of active and passive protection, introduced mainly after the establishment of the Wigry National Park in 1989.

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The relationship between chrysophyte cyst assemblages and meteorological conditions: Evidence from a sediment-trap study in northeast Poland

Cited by 4 publications

References 52 publications

Control of diatom and chrysophyte cyst dynamics by a meteorologically driven mixing regime in eutrophic Lake Żabińskie, northern Poland

Control of diatom and chrysophyte cyst dynamics by a meteorologically driven mixing regime in eutrophic Lake Żabińskie, northern Poland

Contribution of silica-scaled chrysophytes to ecosystems services: a review

History of Environmental and Climatic Changes Recorded in Lacustrine Sediments—A Wigry Lake Case Study

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