Research of our recent graduate students
and fellows

 


Darryl's CV >>

 

Darryl Hondorp, Postdoctoral Researcher 

My research is focused on understanding the effects of low dissolved oxygen (hypoxia) on estuarine communities. In one project, I am examining global trends in fisheries and water quality to test if patterns in landings composition are consistent with expected hypoxia-related shifts towards landings dominated by pelagic and lower trophic level speices. A second project focuses on the disease dynamics of eastern oyster exposed to diel-cycling hypoxia (early morning periods of low dissolved oxygen that occur when nighttime biological oxygen demand exceeds photosynthetic oxygen production the previous day). 

 

Jennafer Malek, M.S. Student at UMD-College Park

I am interested in the relationship between the Eastern oyster, Crassostrea virginica, and the oyster parasite, Perkinsus marinus which causes Dermo disease. My research will compare acquisition and progression of P. marinus between intertidally and subtidally located C. virginica at different sites around Chesapeake Bay. I also hope to apply my results to how effects of climate change, especially increasing water temperature, may influence C. virginica in the future in terms of disease and tidal habitat.

 

 


 

 

 

 

 


 

 

 

 

 

 

 




Recent Projects:

Hypoxia:

CHRP: Shallow water hypoxia: Tipping the balance for individuals, populations and ecosystems. D. Breitburg, T. Targett, K. Rose, H. Townsend, and B. Michaels. NOAA CSCOR. September 2010 - August 2015.

Nitrogen, Hypoxia and Fishes: Moving Beyond Fisheries Data to Understand Effects on Upper Trophic Levels in Estuaries and Semi-Enclosed Seas. D. Breitburg and K. Limburg. LOICZ. 

Response of Chesapeake Bay Subsystems to Changes in Nutrient Loading: Trajectories, Thresholds and Regulating Factors. W.M. Kemp, W. Boynton and D. Breitburg.  MD Sea Grant/EPA Chesapeake Bay Program

Effects of diel cycling hypoxia on acquisition and  progression of Perkinsus marinus infections by Eastern oysters: critical issues for geographic targeting of restoration. D.L. Breitburg, C. Audemard, E. Burreson. Maryland Sea Grant.  

Watershed-estuary-species nutrient susceptibility. Donald Scavia, Gloria Helfand, Robert Howarth, Richard Alexander and Denise Breitburg. NOAA Coastal Ocean Program.

Multiple Stressors:

Predicting impacts of stressors at the land-water interface. T. Jordan and 16 co-PIs. NOAA Center for Sponsored Coastal Ocean Research.

Gelatinous Zooplankton:

Reconstructing long-term patterns in sea nettle abundance and effects on the Chesapeake Bay food web. D.L. Breitburg.  Maryland Sea Grant.

Effects of ultraviolet radiation on Mnemiopsis survival and egg production along a latitudinal gradient. K. Rathjen, D.L. Breitburg, P. Neale and . Smithsonian Marine Science Network/MD Sea Grant.

The role of small inlets as potential reactor vessels for gelatinous zooplankton in Chesapeake Bay. D.L. Breitburg.  Maryland Sea Grant.

Oysters:

Interactive Effects of Climate Change and Disease on Oyster Survival and Distributions in Chesapeake Bay. J. Malek and D. Breitburg

Effects of diel cycling hypoxia on acquisition and  progression of Perkinsus marinus infections by Eastern oysters: critical issues for geographic targeting of restoration. D.L. Breitburg, C. Audemard, E. Burreson. Maryland Sea Grant.