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Alkaline Phosphatase Activity of Seagrass and Water Column Fractions in Florida Bay
| Title: | Alkaline Phosphatase Activity of Seagrass and Water Column Fractions in Florida Bay. |
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| Name(s): |
Kletou, Demetris Koch, Marguerite, Thesis advisor Florida Atlantic University, Degree grantor Charles E. Schmidt College of Science Department of Biological Sciences |
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| Type of Resource: | text | |
| Genre: | Electronic Thesis Or Dissertation | |
| Date Created: | 2007 | |
| Date Issued: | 2007 | |
| Publisher: | Florida Atlantic University | |
| Place of Publication: | Boca Raton, FL | |
| Physical Form: | application/pdf | |
| Extent: | 51 p. | |
| Language(s): | English | |
| Summary: | Few phosphorus (P) depleted coastal marine ecosystems have been examined for their capacity to hydrolyze phosphomonoesters (PMEs). The purpose of this study was to examine seasonal APA partitioning between water column fractions (phytoplankton, bacteria and freely dissolved) and benthic autotrophs in Florida Bay, a P limited shallow estuary using low fluorescent substrate (MUF-P) concentrations (≤2.0 μm). APA was higher at the western and northcentral (751 and 695 nmol L^-1 h^-1) sites and driven by cyanobacterial blooms, compared to the P limited northeastern (359 nmol L^-1 h^-1) site The free dissolved fraction (<0.2 μm) accounted for the most APA (~50%), followed by the phytoplankton (>1 μm; 30%) and bacteria fraction (<0.2-> 1.2 μm; 8%). Thaiassia testudinum leaves with their associated epiphytes contributed modestly to water column APA (14 and 20%), and only during non-bloom conditions. Rapid hydrolysis of PMEs (undetected in most samplings) in Florida Bay is probably driven by high concentration of organic substrates for microbial and cyanobacterial activity which results from the close association of the shallow water column with the underlying seagrass community and adjacent Everglades wetlands. | |
| Identifier: | FA00000780 (IID) | |
| Degree granted: | Thesis (M.S.)--Florida Atlantic University, 2007. | |
| Collection: | FAU Electronic Theses and Dissertations Collection | |
| Note(s): |
Includes bibliography. Charles E. Schmidt College of Science |
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| Subject(s): |
Coastal ecology--Florida Coastal zone management--Florida Estuarine sediments--Florida--Florida Bay Aquaculture--Environmental aspects--Florida |
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| Held by: | Florida Atlantic University Libraries | |
| Persistent Link to This Record: | http://purl.flvc.org/fau/fd/FA00000780 | |
| Sublocation: | Digital Library | |
| Restrictions on Access: | All rights reserved by the source institution | |
| Restrictions on Access: | Copyright © is held by the author with permission granted to Florida Atlantic University to digitize, archive and distribute this item for non-profit research and educational purposes. Any reuse of this item in excess of fair use or other copyright exemptions requires permission of the copyright holder. | |
| Restrictions on Access: | http://rightsstatements.org/vocab/InC/1.0/ | |
| Host Institution: | FAU | |
| Is Part of Series: | Florida Atlantic University Digital Library Collections. |
