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Response of stable isotopes (δ2H, δ13C, δ15N, δ18O) of lake water, dissolved organic matter, seston, and zooplankton to an extreme precipitation event

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F23%3A00573280" target="_blank" >RIV/60077344:_____/23:00573280 - isvavai.cz</a>

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S004896972303245X?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S004896972303245X?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.scitotenv.2023.164622" target="_blank" >10.1016/j.scitotenv.2023.164622</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Response of stable isotopes (δ2H, δ13C, δ15N, δ18O) of lake water, dissolved organic matter, seston, and zooplankton to an extreme precipitation event

  • Original language description

    Lake ecosystems process and cycle organic substrates, thus serving as important bioreactors in the global carbon cycle. Climate change is predicted to increase extreme weather and precipitation events that can flush nutrients and organic matter from soils to streams and lakes. Here we report changes in stable isotopes (δ2H, δ13C, δ15N, or δ18O) of water, dissolved organic matter (DOM), seston, and zooplankton in a subalpine lake at short time resolution following an extreme precipitation event between early July to mid-August 2021. Water from excess precipitation and runoff remained in the lake epilimnion and coincided with increasing δ13C values of seston (−30 ‰ to −20 ‰), due to the input of carbonates and terrestrial organic matter. Particles settled into deeper lake layers after two days and contributed to the uncoupling of C and N cycling as the lake responded to this extreme precipitation event. Following the event, there was an increase in bulk δ13C values of zooplankton (from −35 ‰ to −32 ‰). Throughout this study, δ13C values of DOM remained stable throughout the water column (−29 ‰ to −28 ‰), while large isotopic fluctuations in DOM δ2H (−140 ‰ to −115 ‰) and δ18O (+9 ‰ to +15 ‰) values suggested DOM relocation and turnover. Integrating isotope hydrology, ecosystem ecology, and organic geochemistry offers an element-specific, detailed approach to investigating the impact of extreme precipitation events on freshwater ecosystems and particularly aquatic food webs.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10617 - Marine biology, freshwater biology, limnology

Result continuities

  • Project

    <a href="/en/project/GA21-26382S" target="_blank" >GA21-26382S: Hydrogen and oxygen isotopes and cycling of humics in peat (HydrOxyHumP)</a><br>

  • Continuities

    I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Others

  • Publication year

    2023

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Science of the Total Environment

  • ISSN

    0048-9697

  • e-ISSN

    1879-1026

  • Volume of the periodical

    891

  • Issue of the periodical within the volume

    September

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    9

  • Pages from-to

    164622

  • UT code for WoS article

    001033305600001

  • EID of the result in the Scopus database

    2-s2.0-85161650526