> Oceanography > Issues > Archive > Volume 22, Number 4

2009, Oceanography 22(4):212–231, http://dx.doi.org/10.5670/oceanog.2009.110

Understanding How Disease and Environment Combine to Structure Resistance in Estuarine Bivalve Populations

Authors | Abstract | Full Article | Citation







Authors

THE DELAWARE BAY ECOLOGY OF INFECTIOUS DISEASES GROUP

Eileen Hofmann | Department of Ocean, Earth and Atmospheric Sciences, Old Dominion University, Norfolk, VA, USA

David Bushek | Haskin Shellfish Research Laboratory, Rutgers University, Port Norris, NJ, USA

Susan Ford | Haskin Shellfish Research Laboratory, Rutgers University, Port Norris, NJ, USA

Ximing Guo | Haskin Shellfish Research Laboratory, Rutgers University, Port Norris, NJ, USA

Dale Haidvogel | Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ, USA

Dennis Hedgecock | Department of Biological Sciences, University of Southern California, Los Angeles, CA, USA

John Klinck | Department of Ocean, Earth and Atmospheric Sciences, Old Dominion University, Norfolk, VA, USA

Coren Milbury | Haskin Shellfish Research Laboratory, Rutgers University, Port Norris, NJ, USA, and Department of Radiation Oncology, Dana-Farber Cancer Institute, Harvard Medical School, Cambridge, MA, USA

Diego Narvaez | Department of Ocean, Earth and Atmospheric Sciences, Old Dominion University, Norfolk, VA, USA

Eric Powell | Haskin Shellfish Research Laboratory, Rutgers University, Port Norris, NJ, USA

Yongping Wang | Haskin Shellfish Research Laboratory, Rutgers University, Port Norris, NJ, USA

Zhiren Wang | Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ, USA

John Wilkin | Institute of Marine and Coastal Sciences, Rutgers University, New Brunswick, NJ, USA

Liusuo Zhang | Haskin Shellfish Research Laboratory, Rutgers University, Port Norris, NJ, USA

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Abstract

Delaware Bay oyster (Crassostrea virginica) populations are influenced by two lethal parasites that cause Dermo and MSX diseases. As part of the US National Science Foundation Ecology of Infectious Diseases initiative, a program developed for Delaware Bay focuses on understanding how oyster population genetics and population dynamics interact with the environment and these parasites to structure the host populations, and how these interactions might be modified by climate change. Laboratory and field studies undertaken during this program include identifying genes related to MSX and Dermo disease resistance, potential regions for refugia and the mechanisms that allow them to exist, phenotypic and genotypic differences in oysters from putative refugia and high-disease areas, and spatial and temporal variability in the effective size of the spawning populations. Resulting data provide inputs to oyster genetics, population dynamics, and larval growth models that interface with a three-dimensional circulation model developed for Delaware Bay. Reconstruction of Lagrangian particle tracks is used to infer transport pathways of oyster larvae and MSX and Dermo disease pathogens. Results emerging from laboratory, field, and modeling studies are providing an understanding of long-term changes in Delaware Bay oyster populations that occur as the oyster population responds to climate, environmental, and biological variability.

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Full Article

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Citation

The Delaware Bay Ecology of Infectious Diseases Group. 2009. Understanding how disease and environment combine to structure resistance in estuarine bivalve populations.
Oceanography 22(4):212–231, http://dx.doi.org/10.5670/oceanog.2009.110.

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