Embryos to ecosystems: Integrating studies at multiple levels of biological organization in aquatic toxicology - Livestream

Anthropogenic stressors, particularly pollutants, typically target animals at the molecular, tissue, and organ-system levels, with consequences assessed at population, community, and ecosystem scales. This seminar discusses three research projects spanning multiple levels of biological organization to inform environmental projections and conservation efforts. The first project investigates the ecological impact of a proposed mechanism of stressor avoidance in buoyant pelagic fish embryos, such as mahi-mahi (Coryphaena hippurus), wherein embryos dynamically modify buoyancy to reduce exposure to surface water stressors.

The second project explores the impact of sound pollution on the stress response of the Gulf toadfish (Opsanus beta) during an EDM festival on a barrier island with a delicate ecosystem and pivotal aquaculture facility, with the aim of preventing the festival’s return.

Lastly, the third project utilizes multi-stressor lab-based experiments to investigate the physiology and stress response of the endangered delta smelt (Hypomesus transpacificus), aiming to inform rearing and supplementation efforts.

Speaker: Christina Pasparakis, Assistant Professor in Dept. of Environmental Toxicology , Bodega Marine Laboratory/ UC Davis

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