2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/05/2017 | 11:30 AM - 11:45 AM | HEAVY METAL AND DEVELOPMENT – EFFECTS IN CHIRONOMIDAE LARVAE TO LEAD EXPOSURE | 301A
HEAVY METAL AND DEVELOPMENT – EFFECTS IN CHIRONOMIDAE LARVAE TO LEAD EXPOSURE
Human activity has affected the majority of the worlds freshwater systems, deteriorating water quality and affecting wildlife. For water quality estimations, aquatic insect larvae tolerance has long been used in environmental assessments. However, studies have shown that although insect larvae may survive in contaminated environments the metamorphosis may be hampered. Therefore, we might underestimate the environmental effect of contaminants. Knowledge about contaminants effect on metamorphosis is limited and further research is necessary to fully understand the implication of aquatic contaminants.
In this laboratory study, we expose natural populations of chironomids to different concentrations of lead and measure the effects on larvae survival, hatching success and time to emergence. The study gives us information about whether metamorphosis needs to be incorporated when determining environmental quality criterias and if chironomids are potential transporters of metals from water to land. This will give us insight of potential ecological effects in both aquatic and terrestrial systems.
- C03 Invertebrates
- S03 Stressing the 'Eco' in Freshwater Ecotoxicology
- S14 Stressors in linked aquatic-terrestrial ecosystems: New developments and solutions
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Presenters/Authors
Johan Lidman
(), Department of ecology and environmental science, Umeå University, johan.lidman@umu.se;
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Åsa Berglund
(), Dep. of Ecology and Environmental Science, Umeå University, asa.berglund@umu.se;
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Johan Fahlman
(), Department of ecology and environmental science, Umeå University, johan.fahlman@umu.se;
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Micael Jonsson
(), Dep. of Ecology and Environmental Science, Umeå University, micael.jonsson@umu.se;
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