Forestry & Natural Resources
Fisheries Research Makes Cover of Environmental Science & Technology
Marisol Sepúlveda, Purdue University professor of ecology and natural systems and associate head for research, and Dave Coulter, postdoctoral fellow at the Center for Fisheries, Aquaculture and Aquatic Sciences at Southern Illinois University, had their work featured on the cover and inside Environmental Science & Technology Magazine’s Oct. 1, 2019 issue.
Sepulveda was co-author of the piece entitled “Lifelong Exposure to Dixin-Like PCBs Alters Paternal Offspring Care Behavior and Reduces Male Fish Reproductive Success,” while Coulter, a former PhD student under Sepúlveda and Tomas Höök, professor of Fisheries and Aquatic Sciences, at Purdue, was the lead author.
The paper details a laboratory experiment designed to identify the mechanisms by which polychlorinated biphenyls (PCB) contamination affects male reproductive contribution from individuals to populations. The experiment saw male fathead minnows (Pimephales promelas) dosed with one of two PCB mixtures throughout their lives. Once mature, the minnows were bred with uncontaminated females and evaluated the effects on:
Sepulveda was co-author of the piece entitled “Lifelong Exposure to Dixin-Like PCBs Alters Paternal Offspring Care Behavior and Reduces Male Fish Reproductive Success,” while Coulter, a former PhD student under Sepúlveda and Tomas Höök, professor of Fisheries and Aquatic Sciences, at Purdue, was the lead author.
The paper details a laboratory experiment designed to identify the mechanisms by which polychlorinated biphenyls (PCB) contamination affects male reproductive contribution from individuals to populations. The experiment saw male fathead minnows (Pimephales promelas) dosed with one of two PCB mixtures throughout their lives. Once mature, the minnows were bred with uncontaminated females and evaluated the effects on:
- Expression of genes from brain tissue involved in reproductive endocrine pathways
- Testicular cellular development
- Secondary sexual characteristics
- Courtship and reproductive behavior
- Offspring survival
- Long-term offspring performance
Featured Stories
A world of opportunity in Agricultural Economics
Growing up traveling the world, Abigail Bothwell always wanted to see how agriculture connects...
Purdue agronomy faculty members earn 2025 ACSESS Fellows
The Alliance of Crop, Soil and Environmental Science Societies (ACSESS) have acknowledged three...
Farmer sentiment drops sharply at start of 2026 as economic concerns increase
Farmer sentiment weakened sharply in January, as the Purdue University/CME Group Ag Economy...
Digital foresters embrace GIS mapping and analysis
Purdue University has grown a thriving forest of more than 2,000 geographic information systems...
Kendall Cottingham - Graduate Ag Research Spotlight
Growing up in Bloomington, Kendall Cottingham was certain that she liked science and was a people...
Chia Seeds Recalled Due to Possible Salmonella Contamination
On January 23, 2026, Navitas Organics announced a recall of selecting lots of 8 oz Organic Chia...