Novel protocol for acute in situ ecotoxicity test using native crustaceans applied to groundwater ecosystems

Andrea Castaño-Sánchez (Author), Florian Malard (Author), Gabriela Kalčíková (Author), Ana Sofia P. S. Reboleira (Author)

Abstract

Current standardized laboratory test protocols use model species that have limitations to accurately assess native species responses to stressors. We developed and tested a novel acute in situ protocol for testing field-collected organisms. We used Asellus aquaticus and NaCl as a reference toxicant to test for the effects of location (laboratory vs. in situ), medium (synthetic vs. field water), substrate (presence vs. absence), and protocol replicability. We further tested the protocol using groundwater-adapted isopods: Proasellus assaforensis for the effect of location, P. cavaticus of medium and P. lusitanicus of substrate. Our results showed that A. aquaticus’ lethality obtained with the novel acute in situ protocol did not significantly differ from those from laboratory testing. However, laboratory tested P. assaforensis showed a higher sensitivity, suggesting that its acclimation to laboratory conditions might have pernicious effects. A. aquaticus and P. cavaticus showed a higher mortality using synthetic medium in situ and under laboratory conditions, which overestimated the stressor’s effect. Besides, substrate use had no significant effect. The novel acute in situ protocol allows the use of native species under realistic scenarios. It is particularly well adapted for assessing the risk of groundwater ecosystems but it can be applied to a wide range of ecosystems.

Keywords

ekologija;ekotoksikologija;podtalnica;groundwater ecology;groundwater ecotoxicology;stygofauna;in situ exposure;site-specific assessment;

Data

Language:	English
Year of publishing:	2021
Typology:	1.01 - Original Scientific Article
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
UDC:	628.112:502/504
COBISS:	64665347
ISSN:	2073-4441
Views:	126
Downloads:	44
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	Slovenian
Secondary keywords:	ekologija;ekotoksikologija;podtalnica;
Type (COBISS):	Article
Pages:	str. 1-13
Volume:	ǂVol. ǂ13
Issue:	ǂiss. ǂ8
Chronology:	Apr. 2021
DOI:	10.3390/w13081132
ID:	14696221