caa a22 4500 606230610 CHVBK 20210128101215.0 cr unu---uuuuu 210128e20150401xx s 000 0 eng 10.1007/s10695-014-9988-6 doi (NATIONALLICENCE)springer-10.1007/s10695-014-9988-6 Sublethal effects of cadmium on auditory structure and function in fathead minnows ( Pimephales promelas ) [Elektronische Daten] [Jennifer Low, Dennis Higgs] Aquatic ecosystems are threatened by environmental contaminants, and many heavy metals can influence both the structure and function of sense organs in fishes. The use of these senses is vital to the survival and reproductive success of fish and therefore affects the health of the ecosystem as a whole. The current study examines the effects of cadmium on auditory structure and function in the fathead minnow (Pimephales promelas). In the laboratory, fish were exposed for 96h to a range of cadmium concentrations and both hearing sensitivity and hair cell morphology were quantified. While hair cell numbers were unaffected, cadmium caused an increase in auditory threshold, with a critical range for toxic effects of cadmium estimated at 2.1-2.9µgL−1. Cadmium exposure also caused a decrease in response latency at higher cadmium concentrations. The current study demonstrates the sublethal effects of cadmium on fish sensory function while also pointing to the need for more careful interpretation of cadmium impacts on aquatic populations. Springer Science+Business Media Dordrecht, 2014 Hearing nationallicence Auditory evoked potential nationallicence Ecotoxicology nationallicence Fish nationallicence Metal contaminants nationallicence Cadmium nationallicence AEP : Auditory evoked potential nationallicence ANOVA : Analysis of variance nationallicence Cd : Cadmium nationallicence EC50 : Effective concentration nationallicence PB : Phosphate buffer nationallicence PFA : Paraformaldehyde nationallicence Low Jennifer Department of Biological Sciences, University of Windsor, 401 Sunset Avenue, N9B 3P4, Windsor, ON, Canada aut Higgs Dennis Department of Biological Sciences, University of Windsor, 401 Sunset Avenue, N9B 3P4, Windsor, ON, Canada aut Fish Physiology and Biochemistry Springer Netherlands 41/2(2015-04-01), 357-369 0920-1742 41:2<357 2015 41 10695 https://doi.org/10.1007/s10695-014-9988-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10695-014-9988-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Low Jennifer Department of Biological Sciences, University of Windsor, 401 Sunset Avenue, N9B 3P4, Windsor, ON, Canada aut NATIONALLICENCE 700 1- Higgs Dennis Department of Biological Sciences, University of Windsor, 401 Sunset Avenue, N9B 3P4, Windsor, ON, Canada aut NATIONALLICENCE 773 0- Fish Physiology and Biochemistry Springer Netherlands 41/2(2015-04-01), 357-369 0920-1742 41:2<357 2015 41 10695