Senior Project Advisor
zebrafish, polyunsaturated aldehydes, fish, heart rate, survival, mortality, diatoms, forage fish
This research provides insight on the effects that polyunsaturated aldehydes (PUAs) have on model species zebrafish heart rate and mortality. Zebrafish were used as an analog for forage fish, which are of both ecological and economic importance. Forage fish often interact with diatoms, some species of which have been known to emit allelopathic chemicals, PUAs. These chemicals can have a deleterious effect on invertebrates that cohabitate with or consume diatoms, but their effects on vertebrates was unknown. In the lab, zebrafish eggs were exposed to three different concentrations of PUAs plus two controls and observed to determine any effects on their heart rate and ability to survive. A non-parametric ANOVA was used to compare the average heart rates of the larvae from each treatment and a Kaplan Meier survival analysis was used to determine the percent chance of larval survival for a given time for each treatment. The data showed that under high concentrations, PUAs decrease larval heart rate and decrease their chance of survival.
Jessa, Soraya, "The effect of polyunsaturated aldehydes on zebrafish larvae heart rate and mortality" (2022). WWU Honors College Senior Projects. 560.
Subjects - Topical (LCSH)
Forage fishes--Effect of chemicals on; Aldehydes--Physiological effect; Diatoms
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