Habitat suitability and population demographics of the seagrass, Thalassia testudinum, in the northeast salt ponds of Key West, Florida

Author

• Cheryl L. Miller

Author Type

Graduate Student

Date of Award

2000

Document Type

Thesis

Publication Status

Version of Record

Submission Date

October 2026

Thesis/Dissertation Advisor [Chair]

Austin, Daniel F.

Abstract

Reconstructive aging techniques were used to construct the age frequency distributions of T. testudinum short shoots in the Salt Ponds of Key West, FL. Median short shoot age was approximately two years. No evidence of sexual reproductive effort was found. A site-specific leaf emergence rate was not used, which may have contributed error in the reconstructive technique. Gradients in salinity, phosphorous availability, community composition, and leaf width were observed along the water flow pathway through the ponds. Populations of short shoots more distal from the tidal source exhibited an older age structure reflecting higher salinity, temperature, and dissolved oxygen stresses. Populations closest to apparent sources of nutrient enrichment were skewed toward young individuals. A significant positive relationship between increasing short shoot mortality and recruitment was identified. A significant correlation between low phosphorous availability and narrow leaf width was observed, and a positive relationship between phosphorous availability and recruitment was suggested.

Extent

91 p.

Comments

Thesis (M.S.)--Florida Atlantic University, 2000.|Thesis (M.S.)--Florida Atlantic University, 2000.

Recommended Citation

Miller, Cheryl L., "Habitat suitability and population demographics of the seagrass, Thalassia testudinum, in the northeast salt ponds of Key West, Florida" (2000). Electronic Theses and Dissertations 2000 - 2009. 65.
https://digitalcommons.fau.edu/etd_general_5/65

Identifier

FADT12730

Format

pdf