Počet záznamů: 1
Stable isotope evidence from archived fish scales indicates carbon cycle changes over the four-decade history of the Rimov Reservoir (Czechia).
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SYSNO ASEP 0542650 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Stable isotope evidence from archived fish scales indicates carbon cycle changes over the four-decade history of the Rimov Reservoir (Czechia). Tvůrce(i) Vašek, Mojmír (BC-A) RID, ORCID
Souza, Allan T. (BC-A) RID, ORCID
Říha, Milan (BC-A) RID, ORCID
Kubečka, Jan (BC-A) RID, ORCID
Znachor, Petr (BC-A) RID, ORCID
Hejzlar, Josef (BC-A) RID, ORCIDCelkový počet autorů 6 Číslo článku 142550 Zdroj.dok. Science of the Total Environment. - : Elsevier - ISSN 0048-9697
Roč. 755, č. 2 (2021)Poč.str. 10 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova Biogeochemistry ; CO2 ; Ecosystem dynamics ; Eutrophication ; Food web ; Time series Vědní obor RIV EH - Ekologie - společenstva Obor OECD Ecology CEP GA15-13750S GA ČR - Grantová agentura ČR GA15-01625S GA ČR - Grantová agentura ČR GA20-18005S GA ČR - Grantová agentura ČR LM2015075 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_013/0001782 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy EF16_025/0007417 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Způsob publikování Omezený přístup Institucionální podpora BC-A - RVO:60077344 UT WOS 000600786700021 EID SCOPUS 85092236673 DOI 10.1016/j.scitotenv.2020.142550 Anotace Using archived fish scale samples together with long-term monitoring data, this study investigates the potential of fish scales to record historical changes in the aquatic environment. We analysed stable carbon (delta C-13) and nitrogen (delta N-15) isotopes in the scales of two planktivorous cyprinid species collected from the meso-eutrophic Rimov Reservoir, Czechia, over its entire four-decade history (1979-2016). The delta C-13 of the fish scales varied greatly throughout the reservoir history. The lowest delta C-13 values were observed immediately after the reservoir was filled in 1979, indicating that fish production at that time was likely partially supported by C-13-depleted CO2 released from the inundated soil. During the 1980s, due to the high levels of phytoplankton production stimulated by high phosphorus inputs from the catchment, the delta C-13 values substantially increased. However, since 1990, the delta C-13 values have generally decreased, reflecting a gradual reduction in reservoir primary production caused by the decreasing input of phosphorus and increasing input of dissolved organic carbon from the catchment. The delta C-13 of fish scales was also used to reconstruct the CO2 concentration of the surface water. The reconstructed CO2 varied significantly during the four-decade history, but it was always below the air-equilibrium concentration, suggesting that the surface water of the reservoir has consistently absorbed atmospheric carbon. The fish-scale delta N-15 values remained relatively stable, while slightly increasing within three years after impoundment, likely because the nitrogen supply was high throughout the studied period. Our study contributes to the growing body of literature demonstrating that stable isotope analysis of archived biological samples is a promising approach for understanding historical trends in the biogeochemistry of aquatic environments. In particular, our results highlight the potential of delta C-13 in archived fish scales in reconstructing carbon cycle changes and evaluating human impacts on aquatic ecosystems. Pracoviště Biologické centrum (od r. 2006) Kontakt Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Rok sběru 2022 Elektronická adresa https://doi.org/10.1016/j.scitotenv.2020.142550
Počet záznamů: 1