Relationship between potentially toxic elements and macrophyte communities in the Sava river
2024
Аутори:
Jarić, SnežanaKaradžić, Branko
Paunović, Momir
Milačič, Radmila
Ščančar, Janez
Kostić, Olga
Zuliani, Tea
Vidmar, Janja
Miletić, Zorana
Anđus, Stefan
Mitrović, Miroslava
Pavlović, Pavle
Тип документа:
Чланак у часопису (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт:
Freshwater ecosystems are at significant risk of contamination by potentially toxic elements
(PTEs) due to their high inherent toxicity, their persistence in the environment and their tendency
to bioaccumulate in sediments and living organisms. We investigated aquatic macrophyte communities
and the concentrations of As, Cu, Cd, Cr, Pb, Zn, Ni and Fe in water and sediment
samples to identify a pollution pattern along the Sava River and to investigate the potential
impact of these PTEs on the diversity and structure of macrophyte communities. The study, which
covered 945 km of the Sava River, showed a downstream increase in sediment concentrations of
the analyzed elements. Both species richness and alpha diversity of macrophyte communities also
generally increase downstream. Ordinary and partial Mantel tests indicate that macrophyte
communities are significantly correlated with sediment chemistry, but only weakly correlated
with water chemistry. In the lowland regions (downstream), beta diversity decreases successively,
which can be attributed to an increasing similarity of environmental conditions at downstream
sites. Species richness is relatively low at sites with low concentrations of Cr, Cd, Fe, and Cu in the
sediment. However, species richness increases to a certain extent with increasing element concentrations;
as element concentrations increase further, species richness decreases, probably as a
result of increased toxicity. Some species that are generally more tolerant to high concentrations
of PTEs are: Ceratophyllum demersum, Iris pseudacorus, Najas marina, Butomus umbellatus, Vallisneria
spiralis, Potamogeton gramineus and Bolboschoenus maritimus maritimus. Potamogeton perfoliatus
and the moss species Cinclidotus fontinaloides and Fontinalis antipyretica have narrow
ecological amplitudes in relation to the concentrations of PTEs in the sediment.
Кључне речи:
Aquatic vegetation; Biodiversity; Heavy metals; Potentially toxic elements; Sava river; Macrophyte communitiesИзвор:
Heliyon, 2024, 10, 15, e34994-Финансирање / пројекти:
- Министарство науке, технолошког развоја и иновација Републике Србије, институционално финансирање - 200007 (Универзитет у Београду, Институт за биолошка истраживања 'Синиша Станковић') (RS-MESTD-inst-2020-200007)
- Managing the effects of multiple stressors on aquatic ecosystems under water scarcity (EU-FP7-603629)
DOI: 10.1016/j.heliyon.2024.e34994
ISSN: 2405-8440
PubMed: 39144995