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Subproject #4: Physiological effects of hypoxia and environmental contaminants on Atlantic croaker in the Chesapeake and Coastal Bays

 

   
 

Investigators:

Andrea K. Johnson (UMES)
Richard Brill (VIMS/NOAA) 
Mary Fabrizio (VIMS)

                   heather4    
 
  This study addresses the question of whether hypoxia and environmental contaminants affect the health of aquatic organisms.  Complementary laboratory and estuarine studies are designed to elucidate the effects of hypoxia exposure on immunological, reproductive and endocrine functions in Atlantic croaker (Micropogonias undulatus), an economically and ecologically important demersal species commonly collected from the hypoxic zone in Chesapeake Bay.  
     
  Specific objectives are to:

1) Determine the effects of hypoxia exposure on immunological, reproductive and endocrine functions of croaker under controlled laboratory conditions

2) Determine the persistence (presence/absence over time) of croaker in areas that develop hypoxia in Chesapeake Bay using active acoustic telemetry

3) Compare immunological, reproductive and endocrine biomarker responses in croaker collected from hypoxic and reference sites in the Chesapeake and Coastal Bays

4) Integrate observed physiological responses determined in laboratory and field studies to behavioral responses (horizontal and vertical movement) of croaker, and to changes in water quality and other environmental variables (e.g. trace metals, organic compounds, and harmful algal blooms) in the field
 
   
 

Andrea pics2

   
 
     
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2014 | Last Updated April 2014