Date of Award
DeVries, Philip J.
Soniat, Thomas M.
Penz, Carla M.
Salinity (S) and temperature (T) control every facet of the eastern oyster (Crassostrea virginica) life cycle, principally reproduction, development, growth, and mortality. Previous studies conducted in in the Breton Sound (BR) and Barataria (BA) estuaries have reported differences in growth and mortality rates between the basins. In the present study, environmental conditions were synchronized to compare growth and mortality rates between basins at similar combinations of T and S. Results indicate that when T and S are the same (synchronized), seasonal oyster growth and mortality rates differ between BR and BA. Seasonal analyses revealed that as salinities increased in both estuaries, growth rates generally increased, while mortality rates generally decreased. These findings suggest that basin-wide adaptations to local environmental conditions may exist.
Sehlinger, Troy, "Analysis of temperature and salinity effects on growth and mortality of oysters (Crassostrea virginica) in Louisiana" (2018). University of New Orleans Theses and Dissertations. 2515.