Title

Spatial and temporal variation of microbial properties in the water column of Florida Bay

Document Type

Thesis

Degree

Master of Science (MS)

Department

Biology

First Advisor's Name

Ronald D. Jones

First Advisor's Committee Title

Committee Chair

Second Advisor's Name

Laurie L. Richardson

Third Advisor's Name

John C. Makemson

Date of Defense

12-3-1992

Abstract

Physical and biological properties of the water column of Florida Bay were examined at seven study sites over an eighteen month period. The results indicated seasonality in some parameters, but was not evident in others. The data displayed statistically significant (P < 0.05) differences between study sites indicating spatial variation. The presence of seagrass affected the overlying water column, especially with respect to the biological parameters: those areas overlying seagrass beds displayed statistically significantly higher values than those over sparsely covered or barren areas. During the period of the study, Florida Bay experienced a seagrass die-off event: microbial activity and numbers were statistically significantly higher over areas of dying seagrass than over healthy or dead areas. The results of this study pointed to phosphorus being the controlling, or limiting factor, for microbial activity in the water column of Florida Bay.

Identifier

FI14051872

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