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| Main Authors: | , , , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Archives of environmental contamination and toxicology
2026
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| Subjects: | |
| Online Access: | https://pubmed.ncbi.nlm.nih.gov/41524955/ |
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| _version_ | 1868266100232290305 |
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| author | Erhart, Claudia Nahrgang, Jasmine Creese, Mari Egeness Dubourg, Paul Frantzen, Marianne Hansen, Bjørn Henrik Hansen, Øyvind Johannes Meador, James P Michon, Elisa Odei, Derrick Kwame Puvanendran, Velmurugu Sørensen, Lisbet |
| author_facet | Erhart, Claudia Nahrgang, Jasmine Creese, Mari Egeness Dubourg, Paul Frantzen, Marianne Hansen, Bjørn Henrik Hansen, Øyvind Johannes Meador, James P Michon, Elisa Odei, Derrick Kwame Puvanendran, Velmurugu Sørensen, Lisbet Erhart, Claudia Nahrgang, Jasmine Creese, Mari Egeness Dubourg, Paul Frantzen, Marianne Hansen, Bjørn Henrik Hansen, Øyvind Johannes Meador, James P Michon, Elisa Odei, Derrick Kwame Puvanendran, Velmurugu Sørensen, Lisbet |
| collection | PubMed - marine biology |
| contents | Crude Oil Exposure During Gametogenesis in the Batch-Spawning Atlantic Cod (Gadus morhua): Effects on Gametes and Maternally Exposed Offspring Development. Erhart, Claudia Nahrgang, Jasmine Creese, Mari Egeness Dubourg, Paul Frantzen, Marianne Hansen, Bjørn Henrik Hansen, Øyvind Johannes Meador, James P Michon, Elisa Odei, Derrick Kwame Puvanendran, Velmurugu Sørensen, Lisbet Animals Gadus morhua Water Pollutants, Chemical Petroleum Male Female Gametogenesis Polycyclic Aromatic Hydrocarbons Maternal Exposure Spermatozoa Crude oil and its water-soluble fractions (WSF) are highly toxic to early life stages of fishes, while exposed adults are often considered more resilient. However, research suggests that parental exposure can result in toxic effects in subsequent generations. This study investigated the impact of a crude oil WSF on Atlantic cod (Gadus morhua) broodstock and the subsequent maternal effects on their offspring. Mature Atlantic cod at late gametogenesis were exposed for 20 days to either a crude oil WSF or to control conditions. Over the following month, fish from both groups were repeatedly strip-spawned, and egg batches were fertilized in vitro using pooled sperm from control males. Maternally exposed offspring had accumulated levels of petroleum-derived aromatic hydrocarbons, including monoaromatic and polyaromatic hydrocarbons (PAHs). However, the profile of accumulated compounds was skewed towards lower-molecular weight compounds compared to the exposure water. Crude oil WSF exposure appeared to accelerate spawning readiness in females, resulting in smaller egg diameters in strip-spawned eggs. Additionally, sperm from oil-exposed males showed reduced curvilinear velocity and linearity. Despite these impacts, no significant differences in larval malformations or cardiac activity were observed. Our findings highlight the importance of advancing our understanding of intergenerational impacts of crude oil contamination on key fish species to accurately assess the long-term ecological consequences of petroleum pollution. |
| format | Artículo científico |
| id | pubmed_41524955 |
| institution | PubMed |
| language | en |
| publishDate | 2026 |
| publisher | Archives of environmental contamination and toxicology |
| record_format | pubmed |
| spellingShingle | Crude Oil Exposure During Gametogenesis in the Batch-Spawning Atlantic Cod (Gadus morhua): Effects on Gametes and Maternally Exposed Offspring Development. Erhart, Claudia Nahrgang, Jasmine Creese, Mari Egeness Dubourg, Paul Frantzen, Marianne Hansen, Bjørn Henrik Hansen, Øyvind Johannes Meador, James P Michon, Elisa Odei, Derrick Kwame Puvanendran, Velmurugu Sørensen, Lisbet Animals Gadus morhua Water Pollutants, Chemical Petroleum Male Female Gametogenesis Polycyclic Aromatic Hydrocarbons Maternal Exposure Spermatozoa Crude Oil Exposure During Gametogenesis in the Batch-Spawning Atlantic Cod (Gadus morhua): Effects on Gametes and Maternally Exposed Offspring Development. Erhart, Claudia Nahrgang, Jasmine Creese, Mari Egeness Dubourg, Paul Frantzen, Marianne Hansen, Bjørn Henrik Hansen, Øyvind Johannes Meador, James P Michon, Elisa Odei, Derrick Kwame Puvanendran, Velmurugu Sørensen, Lisbet Animals Gadus morhua Water Pollutants, Chemical Petroleum Male Female Gametogenesis Polycyclic Aromatic Hydrocarbons Maternal Exposure Spermatozoa Crude oil and its water-soluble fractions (WSF) are highly toxic to early life stages of fishes, while exposed adults are often considered more resilient. However, research suggests that parental exposure can result in toxic effects in subsequent generations. This study investigated the impact of a crude oil WSF on Atlantic cod (Gadus morhua) broodstock and the subsequent maternal effects on their offspring. Mature Atlantic cod at late gametogenesis were exposed for 20 days to either a crude oil WSF or to control conditions. Over the following month, fish from both groups were repeatedly strip-spawned, and egg batches were fertilized in vitro using pooled sperm from control males. Maternally exposed offspring had accumulated levels of petroleum-derived aromatic hydrocarbons, including monoaromatic and polyaromatic hydrocarbons (PAHs). However, the profile of accumulated compounds was skewed towards lower-molecular weight compounds compared to the exposure water. Crude oil WSF exposure appeared to accelerate spawning readiness in females, resulting in smaller egg diameters in strip-spawned eggs. Additionally, sperm from oil-exposed males showed reduced curvilinear velocity and linearity. Despite these impacts, no significant differences in larval malformations or cardiac activity were observed. Our findings highlight the importance of advancing our understanding of intergenerational impacts of crude oil contamination on key fish species to accurately assess the long-term ecological consequences of petroleum pollution. |
| title | Crude Oil Exposure During Gametogenesis in the Batch-Spawning Atlantic Cod (Gadus morhua): Effects on Gametes and Maternally Exposed Offspring Development. |
| topic | Animals Gadus morhua Water Pollutants, Chemical Petroleum Male Female Gametogenesis Polycyclic Aromatic Hydrocarbons Maternal Exposure Spermatozoa |
| url | https://pubmed.ncbi.nlm.nih.gov/41524955/ |