Microbiome and pollutants in the freshwater sponges Ephydatia muelleri (Lieberkühn, 1856) and Spongilla lacustris (Linnaeus, 1758) from the sub-Arctic Pasvik river (Northern Fennoscandia)

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985939%3A_____%2F25%3A00618272" target="_blank" >RIV/67985939:_____/25:00618272 - isvavai.cz</a>

Alternative codes found

RIV/60076658:12310/25:43910099

Result on the web

<a href="https://doi.org/10.1016/j.envres.2025.121126" target="_blank" >https://doi.org/10.1016/j.envres.2025.121126</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.envres.2025.121126" target="_blank" >10.1016/j.envres.2025.121126</a>

Result language

angličtina

Original language name

Microbiome and pollutants in the freshwater sponges Ephydatia muelleri (Lieberkühn, 1856) and Spongilla lacustris (Linnaeus, 1758) from the sub-Arctic Pasvik river (Northern Fennoscandia)

Original language description

Despite the ecosystem functions offered by sponges in freshwater habitats, fragmentary studies have targeted their microbiome and the bioaccumulation of legacy and emerging organic micropollutants, making it difficult to test hypotheses about sponge-microbe specificity and response to environmental factors and stressors. The sponge species Ephydatia muelleri and Spongilla lacustris, coexisting in two sites of the Pasvik River (northern Fennoscandia), were analyzed for persistent organic pollutant (POPs) and chemicals of emerging concern (CECs), along with quali-quantitative microbiological features. River water and sediment were similarly treated to establish if the obtained data were site- or sponge-specific. CECs mainly occurred in abiotic matrices, with trimethoprim and ciprofloxacin prevailing in water and sediment, respectively. Only ciprofloxacin and diclofenac were detected in sponges, with higher concentrations generally determined in S. lacustris than E. muelleri. Overall, POP concentrations were in the order polycyclic aromatic hydrocarbons > chlorobenzenes > polychlorobiphenyls > polychloronaphthalenes, with higher values in sponges with respect to abiotic matrices. Generally, POPs occurred at higher concentrations in S. lacustris than E. muelleri. Enzyme activity measurements displayed diverse trends across samples and sites, with E. muelleri displaying higher glycolytic activity than S. lacustris. Prokaryotic abundance in sponges generally exceeded that found in abiotic matrices. Proteobacteria, Planctomycetota, Actinobacteriota, Verrucomicrobiota, and Cyanobacteria predominated in sponge samples, with slight differences between sponge species and sampling sites, whereas Desulfobacterota and Acidobacterota were retrieved mostly in sediment samples. The sponge-associated bacterial communities appeared to be differently affected by pollutant concentration at the site level. Overall, this study highlights the ecological role of freshwater sponges, shedding light on their microbial associations, pollutant bioaccumulation, and potential as bioindicators of aquatic ecosystem health. The findings emphasize the importance of considering both microbial diversity and contaminant accumulation for a holistic understanding of the roles played by freshwater sponges in human-impacted environments.

Czech name

—

Czech description

—

Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10611 - Plant sciences, botany

Project

<a href="/en/project/GF22-08680L" target="_blank" >GF22-08680L: Origin of resistance against desiccation and cryoinjuries in soil crust microalgae of High Arctic</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

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

Name of the periodical

Environmental Research

ISSN

0013-9351

e-ISSN

1096-0953

Volume of the periodical

273

Issue of the periodical within the volume

MAY 15 2025

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

16

Pages from-to

121126

UT code for WoS article

001438793200001

EID of the result in the Scopus database

2-s2.0-85218899713