Skip to Main Content

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:
  • 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
To read the full summary of the experiment view Lifelong Exposure to Dioxin-Like PCBs Alters Paternal Offspring Care Behavior and Reduces Male Fish Reproductive Success.

Featured Stories

Indiana bat
Unexpected Plants and Animals of Indiana: Indiana Bats

Despite their name, Indiana bats are found in more than 20 states. The species was first found in...

Read More
Man sitting high up in a tree, strapped in.
Purdue launches new AI-based global forest mapping project

Purdue University’s Jingjing Liang has received a two-year, $870,000 grant from the World...

Read More
Dr. Zhao Ma
Zhao Ma Named Unsung Diversity Hero

Dr. Zhao Ma, professor of natural resource social science, was named as the 2023 faculty...

Read More
small-farm-pig-farmers
2023 Indiana Small Farm Conference back at the Hendricks County Fairgrounds after three years of virtual conferencing

Registration is open for the 2023 Indiana Small Farm Conference – Indiana’s premier...

Read More
Block P Statue on Purdue's campus
FNR Names 2022 Department Service Award Honorees

The Purdue Department of Forestry and Natural Resources announced its 2022 service award winners,...

Read More
A blanket of snow coats Agricultural Administration.
Unsung Diversity Heroes foster a sense of belonging

The Unsung Diversity Hero Awards for 2023, honoring faculty, staff and students for their efforts...

Read More
To Top