Danielle Kreeger, PhD
Research Associate Professor, Department of Biodiversity, Earth & Environmental Science
Office: PISB 315
Lab: PISB 301 B1
Lab Phone: 215.895.1270
- PhD, Fisheries Science, Oregon State University, 1992
- MS, Marine Biology/Biochemistry, University of Delaware, 1986
- BS, Marine Biology, Pennsylvania State University, 1984
Trained as a shellfish ecologist and wetland ecologist, most of Danielle’s research studies have focused on the physiological ecology of filter-feeding animals and their trophic interactions in aquatic ecosystems. Suspension-feeding animals such as bivalves (oysters, mussels, clams) and zooplankton (cladocerans, copepods) are of widespread interest for many reasons. In most aquatic systems, suspension-feeders are functional dominant consumers that feed at the base of the food chain and are crucial for supporting production by secondary consumers (e.g., fish), maintaining high water quality, and some are commercially important (oysters, clams). They also represent some of the world’s leading bioindicators for environmental assessment (e.g. Mussel Watch) and toxicity testing (e.g., bioassays). One active area of research is shellfish restoration, especially freshwater mussels which are the nation’s most imperiled animals. Danielle currently serves as science director for the Partnership for the Delaware Estuary (PDE), and National Estuary program. In that role, Danielle is also engaged in research on climate change, wetland monitoring and assessment, living shorelines, oyster restoration, and assessing the many ecosystem services furnished by wetland and shellfish communities.For a full list of her research publications, please click here (PDF file). Kreeger has been on the Drexel faculty since 1994. She had previously worked as a scientist for the Plymouth Marine Laboratory in the United Kingdom (1992-1994), and was associate curator for the Academy of Natural Sciences in Philadelphia (1994-2004).
- 2009. Heidi H., A. R. Boettner, G.I. RamC3rez-Toro, H. Minnigh, J. Spotila and D. Kreeger. Spatial variability associated with shifting land use: Water quality and sediment metals in La Parguera, Southwest Puerto Rico. Marine Pollution Bulletin 58: 672–678.
- 2008. Bushaw-Newton, K. L., S. Doaty, D. A. Kreeger and D. J. Velinsky. Utilization of Spartina- and Phragmites-derived dissolved organic matter by bacteria and ribbed mussels (Geukensia demissa) from Delaware Bay salt marshes. Estuaries and Coasts 31:694–703.
- 2007. D. Kreeger and C. Harris. Terrestrial and aquatic biomonitors: 25 year study of radionuclide detection. Health Physics Journal 92(1): 1-9.
- 2007 Patrick, R., J. M Palms, D. Kreeger and C. Harris. 25 Year study of radionuclides in the Susquehanna River via periphyton biomonitors. Health Physics Journal 92(3): 219-225.
- 2006 Velinsky, D.J., K.L. Bushaw-Newton, D.A. Kreeger, and T.E. Johnson. Effects of small dam removal on stream chemistry in southeastern Pennsylvania. J. N. Am. Benthol. Soc. 25(3): 569-582.
- 2004 Hertler, H., J. Spotilla and D.A. Kreeger. Effects of houseboats on organisms of the La Parguera Reserve, Puerto Rico. Environmental Monitoring and Assessment.98: 391-407.
Technical Reports and Other Writings
- Kreeger, D. and J. Titus. 2008. Delaware Bay. Section 3.7 in: Background Documents Supporting Climate Change Science Program Synthesis and Assessment Product 4.1: Coastal Elevations and Sensitivity to Sea Level Rise [Titus, J.G. and E.M. Strange (eds.)]. EPA 430R07004. U.S. Environmental Protection Agency, Washington, D.C, pp. 242-250. http://epa.gov/climatechange/effects/coastal/background.html
- CCSP, 2009: Coastal Sensitivity to Sea-Level Rise: A Focus on the Mid-Atlantic Region. A report by the U.S. Climate Change Science Program and the Subcommittee on Global Change Research. James G. Titus, Eric K. Anderson, Donald R. Cahoon, Ste phen Gill, Robert E. Thieler, and Jeffress S. Williams (Lead Authors). [D. Kreeger was one of several Contributing authors]. U.S. Environmental Protection Agency, Washington D.C., USA. 790 p.
- Kreeger, D. and J.G. Titus. 2008. Delaware Bay. Section 3.7 In: Background Documents Supporting Climate Change Science Program Synthesis and Assessment Product 4.1: Coastal Elevations and Sensitivity to Sea Level Rise [Titus, J.G. and E.M. Strange (eds.)] EPA 430R07004. U.S. Environmental Protection Agency, Washington, D.C., pp. 242-250.
- Kreeger, D. and D. Bushek. 2008. Combating Tidal Marsh Erosion with ‘Living Shorelines’. Estuary News 19(1): 12-13. Academy of Natural Sciences of Philadelphia (ANSP). 2008. 2006-07 San Antonio Bay Oyster Population Health Assessment. Report No. 08-X. Acad. Nat. Sci. Phila. XX pp. (PI’s: D. Kreeger and R. Thomas).
- Kreeger, D. 2008. Ecosystem-based Management for Tomorrow's Estuary. Estuary News 18(2): 5-6. Partnership for the Delaware Estuary (PDE). 2008. State of the Estuary Report. 2008. Partnership for the Delaware Estuary Report #08-01. 36 pp.
- Academy of Natural Sciences of Philadelphia (ANSP). 2007. 2005-06 San Antonio Bay Oyster Population Health Assessment. Report No. 07-X. Acad. Nat. Sci. Phila. XX pp. (PI’s: D. Kreeger and R. Thomas)