Publications by authors named "Zoe A Zrini"
Fish nursery habitats are increasingly hypoxic and the brain is recognized as highly hypoxia sensitive, yet there is a lack of information on the effects of hypoxia on the development and function of the larval fish brain. Here, we tested the hypothesis that by inhibiting brain development, larval exposure to severe hypoxia has persistent functional effects on the cortisol stress response in zebrafish (Danio rerio). Exposing 5 days post-fertilization (dpf) larvae to 10% dissolved O2 (DO) for 16 h only marginally reduced survival, but it decreased forebrain neural proliferation by 55%, and reduced the expression of neurod1, gfap and mbpa, markers of determined neurons, glia and oligodendrocytes, respectively.
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- - Climate change is affecting the Atlantic salmon aquaculture industry by increasing water temperatures and decreasing oxygen levels, making it crucial for the industry to adapt for sustainable growth.
- - Researchers used specialized data loggers to monitor 2.5 kg Atlantic salmon in Newfoundland from July to October 2019, recording various metrics like activity, heart rate, depth, and temperature throughout a significant temperature change.
- - The study found that while salmon prefer temperatures between 14-18°C and swim at around 0.4-1.0 body lengths per second, their behavior changed with higher temperatures, indicating that understanding these dynamics can help improve fish welfare and management practices in aquaculture.
Studies on the effects of environmental changes with increasing depth (e.g. temperature and oxygen level) on fish physiology rarely consider how hydrostatic pressure might influence the observed responses.
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