1. Sponsor Organization: U.S. Geological Survey, Biological Resources Division

2. Project Title: Annual reproductive cycle of largemouth bass and common carp in the Mid-Northeastern Area.

3. Project Focus:

• Project Primary Focus: Ecological Effects
• Project Secondary Focus: Exposure Assessment

4. Description:

Largemouth bass and common carp are commonly used as indicator organisms for endocrine research, for example in the BEST monitoring, NAWQA, and other programs. However, little is understood about the environmentally induced endocrine disruption in these fish. This project will research the histologic cycle in these fish from different geographic areas and document histologic differences among gonadal sections for developmental stages, histologic biomarkers, or mixed sex determination. Monthly differences among histologic biomarkers will be noted. Correlations of these histologic biomarkers with plasma hormone and vitellogenin will be made monthly.

5. References:

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2. Author: na
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6. Inventory Category:

• Primary: Measure
• Secondary: Methods

7. Inventory Subcategory:

• Primary:
• Secondary:

8. Keywords for Experimental System/Species:

• Species:
  • Fish
  • Largemouth Bass, Common Carp, Micropterus Salmoidescyprinus Carpio
• Study Type:
  • In Vivo
• Fate and Transport:

9. Keywords for Experimental Endpoints:

• Health Effect:
  • Reproductive
  • Histology
• Hormonal Measures:
  • Biomarker Identification
• Level Of Study:
  • Histopathology
• Chemistry Metabolism:
• Life Stage:
  • Female
  • Male
  • Puberty
  • Adult
• Risk Assessment:

10. Chemical Agents:

11. Performing Institution:

• U.S. Geological Survey ;Leetown Science Center ;National Fish Health Research Laboratory ;

12. Contact:

• Vicki Blazer
  Leetown Science Center
  1700 Leetown Road
  Kearneysville, WV 25430 USA
  304/724-4400
  Vicki_Blazer@usgs.gov

Institution: Leetown Science Center
Division:
Given Name:
Name: Vicki Blazer
Title:
Form:
E-Mail: Vicki_Blazer@usgs.gov
Phone: 304/724-4400
Fax:
Street: 1700 Leetown Road
Zip:
City: Kearneysville, WV 25430 USA
State:
Country:

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