Cooperative Research Units
Education, Research And Technical Assistance For Managing Our Natural Resources
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Chemical Contaminants and Fish Endocrine and Reproductive Conditions in Lake Mead National Recreation Area - Wastewater Study


July 2007 - June 2011


The impacts of urban wastewater to the water quality and aquatic ecosystem of Lake Mead National Recreation Area are not well documented. The objective of this project is to examine the potential effects in fathead minnow of exposure to standard tertiary-treated wastewater effluent from Las Vegas, Nevada. Fathead minnow (Pimephales promelas) is a standard fish model for toxicity testing and in this study will be used as surrogate for fish in Lake Mead. Partial life-cycle (21-day exposures) and multigenerational exposure formats will be used. Multiple endpoints of endocrine a reproductive toxicity will be examined.


Current Staff

Federal Staff: 95

Masters Students: 238

Phd Students: 144

Post Docs: 54

University Staff: 239

5 Year Summary

Students graduated: 673

Scientific Publications: 1905

Presentations: 4236



Funding Agencies

  • Lake Mead National Recreation Area
  • Nevada Office


Cooperative Research Units Program Headquarters Cooperators

  1. U.S. Geological Survey