Effects of temperature and acid stress on hatching,survival capacity,metabolism and postural reflexes in caenid mayflies (ephemeroptera) |
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| Institution: | 1. School of Life & Environmental Sciences, Sydney Institute of Agriculture, The University of Sydney, Eveleigh, NSW 2015, Australia;2. School of Biological Sciences, University of Queensland, Brisbane, Australia;3. Chrysalis, Hanoi, Viet Nam;4. Institute of Plant Protection, China Academy of Agricultural Sciences, Beijing, China |
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| Abstract: | - 1.1. Mortality was 100% at pH 3.5 over a temperature range of 10–30°C for embryos and nymphs of Caenis diminuta and C. hilaris.
- 2.2. Hatching success for both species was highest at pH values above 4.5.
- 3.3. Survival capacities were significantly higher at 20°C over a pH range of 4.0-7.2.
- 4.4. Oxygen consumption rates increase as a function of increasing temperature and reduced acidity.
- 5.5. Loss of the nymphal righting response was observed at pH 3.5. This response can be used as a behavioral assay for acid stress.
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