Impact of developmental methylmercury exposure on avian embryonic development, hatchling growth, and survival.
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PubMed
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| Autori principali: | , , |
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| Natura: | Artículo científico |
| Lingua: | en |
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Environmental toxicology and chemistry
2025
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| _version_ | 1868266244731305984 |
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| author | Leaphart, James C Chinn, Sarah M Beasley, James C |
| author_facet | Leaphart, James C Chinn, Sarah M Beasley, James C Leaphart, James C Chinn, Sarah M Beasley, James C |
| collection | PubMed - marine biology |
| contents | Impact of developmental methylmercury exposure on avian embryonic development, hatchling growth, and survival. Leaphart, James C Chinn, Sarah M Beasley, James C Animals Methylmercury Compounds Embryonic Development Ducks Female Environmental Pollutants Embryo, Nonmammalian Methylmercury (MeHg) is a globally ubiquitous and persistent environmental toxicant that negatively affects animal behavior, health, and reproduction. In birds, MeHg is transferred from female to egg, contaminating embryos during sensitive stages of early embryonic development and growth. This toxic exposure in the prenatal environment not only induces mortality but also possible lasting impacts on physiology, health, and survival, even once hatched. The purpose of our study was to further elucidate the negative effects of MeHg exposure during avian embryonic development and explore how such exposure can impact offspring development, growth, and survival, both in ovo and posthatch. To assess this, we experimentally dosed fertile mallard and wood duck eggs with MeHg II chloride and reared developing embryos and ducklings to various endpoints. We found that embryos not only readily accumulated MeHg throughout incubation, but they also displayed varying dose-dependent disparities in body mass and morphometrics, with control individuals being larger during early and late embryonic stages of development (p |
| format | Artículo científico |
| id | pubmed_39919231 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Environmental toxicology and chemistry |
| record_format | pubmed |
| spellingShingle | Impact of developmental methylmercury exposure on avian embryonic development, hatchling growth, and survival. Leaphart, James C Chinn, Sarah M Beasley, James C Animals Methylmercury Compounds Embryonic Development Ducks Female Environmental Pollutants Embryo, Nonmammalian Impact of developmental methylmercury exposure on avian embryonic development, hatchling growth, and survival. Leaphart, James C Chinn, Sarah M Beasley, James C Animals Methylmercury Compounds Embryonic Development Ducks Female Environmental Pollutants Embryo, Nonmammalian Methylmercury (MeHg) is a globally ubiquitous and persistent environmental toxicant that negatively affects animal behavior, health, and reproduction. In birds, MeHg is transferred from female to egg, contaminating embryos during sensitive stages of early embryonic development and growth. This toxic exposure in the prenatal environment not only induces mortality but also possible lasting impacts on physiology, health, and survival, even once hatched. The purpose of our study was to further elucidate the negative effects of MeHg exposure during avian embryonic development and explore how such exposure can impact offspring development, growth, and survival, both in ovo and posthatch. To assess this, we experimentally dosed fertile mallard and wood duck eggs with MeHg II chloride and reared developing embryos and ducklings to various endpoints. We found that embryos not only readily accumulated MeHg throughout incubation, but they also displayed varying dose-dependent disparities in body mass and morphometrics, with control individuals being larger during early and late embryonic stages of development (p |
| title | Impact of developmental methylmercury exposure on avian embryonic development, hatchling growth, and survival. |
| topic | Animals Methylmercury Compounds Embryonic Development Ducks Female Environmental Pollutants Embryo, Nonmammalian |
| url | https://pubmed.ncbi.nlm.nih.gov/39919231/ |