Christopher Raleigh, Kutztown University of Pennsylvania

Class Year:

1996

Mentor:

Evamaria Koch, Ph.D.

Project Title:

Short-Term Effects of UV-B Radiation on Salt Marsh Vegetation

Abstract:

The effect of UV-B radiation, on the morphology and physiology of marsh vegetation was studied in situ. Plots of Spartina intermixed with Salicornia were covered by screens with selective absorption in the UV-B range. Results were compared to control plots (without screens and screens transmitting all UV-B). The screened plots transmitted less ambient light leading to decrease concentration of UV pigments in Salicornia virginica and Spartina alterniflora. Also, S. alterniflora showed morphological change when covered. However, the effects of decreased UV radiation on marsh vegetation are unclear from the data of this study.

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