Modern diatom assemblages and their association with meteorological conditions in two lakes in northeastern Poland

Szczerba, Agnieszka; Rzodkiewicz, Monika; Tylmann, Wojciech

doi:10.1016/j.ecolind.2023.110028

Cited by 3 publications

(7 citation statements)

References 60 publications

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“…Bradbury et al, 1993;Taylor et al, 2007;Zou et al, 2018). Furthermore, this characteristic increase in Aulacoseira ambigua was also observed at the same time period in the nearby Lake Rzęśniki and was connected to mixing of the whole water column induced by the nutrient rich environment present at the same time (Szczerba et al, 2023). A study of the sediment record from Lake Żabińskie also pointed to an increase in the abundance of Aulacoseira ambigua alongside nutrient enrichment (Witak et al, 2017).…”

Section: Biotic Response To Changes In Mixing Regimementioning

confidence: 83%

“…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: 83%

Section: Biotic Response To Changes In Mixing Regimementioning

confidence: 99%

Section: Biotic Response To Changes In Mixing Regimementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

2023

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“…Given the high spatial and temporal heterogeneity of diatom communities in lakes (Kelly et al., 2009), any comprehensive ecological assessment work needs to account for this heterogeneity. Although the effects of seasonality are moderately well‐understood for benthic diatoms in lakes in temperate climates (Cantonati & Lowe, 2014; Szczerba et al., 2023), less is known about planktic species responses to changes in temperature and thermal stratification in tropical lakes (Avendaño et al., 2023; Lewis, 1996). Although inter‐annual variability in lake thermal stratification has been reported in the Andes of Ecuador (Gunkel, 2000; Michelutti et al., 2016; Steinitz‐Kannan et al., 1983), some studies found significant yearly effects on planktic communities (phytoplankton; Merchán Andrade & Sparer Larriva, 2015), but others did not (phytoplankton and zooplankton; Van Colen et al., 2018).…”

Section: Introductionmentioning

confidence: 99%

Planktic diatom responses to spatiotemporal environmental variation in high‐mountain tropical lakes

Luethje,

Mosquera,

Hampel

et al. 2024

Freshwater Biology

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Tropical lakes harbour high levels of biodiversity, but the temporal and spatial variability of biological communities are still inadequately characterised, making it difficult to predict the impact of accelerated rates of environmental change in these regions. Our goal was to identify the spatiotemporal dynamics of the planktic diatom community in the Cajas Massif in the tropical Andes. We analysed seasonal diatom and environmental data over a period of 1 year from 10 lakes located in geologically distinct basins and modelled community–environment relationships using multivariate ordination and variation partitioning techniques. Generalised additive models with a full‐subset information theoretic approach also were used to determine which environmental variables explain single‐species abundance. Although the lakes are monomictic and thus have variable thermal structure across the year, seasonal variability of water chemistry conditions was negligible, and seasonal differences in diatom community composition were small. Across space, diatom community composition was correlated primarily with ionic content (divalent cations and alkalinity), related to bedrock composition, and secondly with lake thermal structure and productivity. The ionic gradient overrode the effect of the thermal structure–productivity gradient at the diatom community level, whereas individual diatom species responded more sensitively to variables related to in‐lake and catchment productivity, including chlorophyll‐a and iron, and the proportion of wetlands in the catchment. Our results indicate that the spatiotemporal variability of Cajas lakes and their diatom communities is the result of multiple intertwined environmental factors. The emergence of the ionic and thermal structure–productivity gradients in a rather small tropical lake district suggests segregation of ecological niches for diatoms that also may be important in other high‐elevation lake regions. Future studies that track tropical Andean lakes under natural and anthropogenically mediated change, both in contemporary times and in palaeoenvironmental reconstructions, would benefit from the modelling approach (community and species levels) developed here.

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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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Modern diatom assemblages and their association with meteorological conditions in two lakes in northeastern Poland

Cited by 3 publications

References 60 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

Planktic diatom responses to spatiotemporal environmental variation in high‐mountain tropical lakes

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

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