Approved Abstracts

Assessing the effect of silver and cadmium and their mixtures using a multispecies system at different trophic levels: multibiomarker approach and environmental microbiome



Author(s): Trombini C; Herruzo-Ruiz AM; Sendra M; Moreno-Garrido I; Alhama J; Michán C; Blasco J;
Presenter: Julian Blasco

The occurrence of metals in aquatic ecosystems is on many occasions linked to contamination problems, although the release from natural sources can co-exist, and the relative importance of their origin depends on the metal and the area. Due to many activities (agriculture, mining, wastewater, etc.) that can release them to aquatic ecosystems, metal contamination is a ubiquitous problem in those environments. However, the information available about the effect on specific trophic levels is less known. In this work, we have employed a multispecies experimental sediment-water setup with microbiome, microalgae, microcrustacean and clams, to assess the impact of Cd and Ag exposure, individually and in a mixture, at two concentrations, 5 and 50 µg/L. A multibiomarker approach was carried out in the clam Scrobicularia plana to assess the impact of metal pollution. Enzyme activities related to oxidative stress and bioaccumulation in the control and exposure organisms were determined. Simultaneously, the identification of bacterial microorganisms at different taxonomic levels was performed by using 16S rRNA genomic analysis. Results show specific changes related to the different metal exposures. As far as we know, this work is the first one combining a classical multibiomarker approach with the global evaluation of the environmental microbiome.


Acknowledgements
This work has been funded by the Spanish National Research Plan (CTM2016-75908-R and PID2019-110049RB-I00) and EDRF. The authors would like to thank to the Andalusia Regional Research Plan to support research teams BIO-187 and RNM-306 and the Research Support Services (SCAI) of the University of Córdoba.


Keywords: multibiomarker; metals; multispecies system

[back]



Confirmed
Speakers


Venue
HOTEL HIMMELBLAU

Hotel Himmelblau has a family tradition of over 40 years, operating and offering the very best in hospitality. Located in the central region of the city, we are close to the main attractions of Blumenau, next to Shopping Neumarkt and at a distance of 2km from Vila Germanica Park.

Rua 7 de Setembro - 1415 - Centro
Blumenau - Santa Catarina - Brasil
CEP: 89010-203


Any questions?

Please send a message to us!