Embryological Development and Mortality of Danio rerio in Long Term Exposure to 17α-Ethynylestradiol
First Advisor
Kim Brown
Date of Award
Winter 3-19-2022
Document Type
Thesis
Degree Name
Bachelor of Science (B.S.) in Biology and University Honors
Department
Biology
Language
English
Subjects
Ethinyl estradiol, Zebra danio -- Embryos -- Mortality, Zebra danio -- Embryos -- Effect of water pollution on, Endocrine disrupting chemicals in water, Zebra danio -- Embryos -- Development
DOI
10.15760/honors.1290
Abstract
Synthetic estrogens as well as other chemicals have become an increasing issue in the impact they have on marine species particularly those sensitive to the environment. A broadly used synthetic estrogen, 17α-ethynylestradiol, has become more widely known to become a growing problem to the ecology of marine wildlife due to increased usage and lack of removal in municipal sewage treatment facilities. This study observes the impact of low level EE2 in embryos following generational exposure. Zebrafish embryos, following three generations of exposure, were observed in rate of mortality, lethality, and hatch success. Concentrations as low as 1ng/L of EE2 has shown to have significant impact in the survival of zebrafish embryos. Removal of EE2 has shown ability of some recovery in zebrafish pointing to the possibility of recovery in areas impacted by EE2 pollution.
Rights
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
Persistent Identifier
https://archives.pdx.edu/ds/psu/37871
Recommended Citation
Jeon, Seong A., "Embryological Development and Mortality of Danio rerio in Long Term Exposure to 17α-Ethynylestradiol" (2022). University Honors Theses. Paper 1259.
https://doi.org/10.15760/honors.1290