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PSEUDO-NITZSCHIA IN THE INDIAN RIVER LAGOON: AN EMERGING THREAT FOR FLORIDA

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Date Issued:
2021
Summary:
The Indian River Lagoon (IRL) spans approximately one-third of the east coast of Florida and faces numerous harmful algal blooms. The potentially toxic diatom, Pseudonitzschia, has been observed in many locations of the IRL. The goal of this study was to obtain a better understanding of the factors contributing to population dynamics of Pseudo-nitzschia in the southern IRL system. Bi-monthly surface water samples were collected for 18 months from five locations. Cell counts enumerated all microphytoplankton, and environmental data was collected at sampling sites throughout the study by the Indian River Lagoon Observatory Network. Six species of Pseudonitzschia were isolated and characterized through 18S Sanger sequencing and scanning electron microscopy, all showed toxicity. Surface water samples also showed domoic acid (DA) presence. We report the first known occurrence of Pseudo-nitzschia micropora in the IRL and the first known DA production from this taxon.
Title: PSEUDO-NITZSCHIA IN THE INDIAN RIVER LAGOON: AN EMERGING THREAT FOR FLORIDA.
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Name(s): Schreiber, Stephanie, author
Sullivan, James, Thesis advisor
Florida Atlantic University, Degree grantor
Department of Marine Science and Oceanography
Charles E. Schmidt College of Science
Type of Resource: text
Genre: Electronic Thesis Or Dissertation
Date Created: 2021
Date Issued: 2021
Publisher: Florida Atlantic University
Place of Publication: Boca Raton, Fla.
Physical Form: application/pdf
Extent: 83 p.
Language(s): English
Summary: The Indian River Lagoon (IRL) spans approximately one-third of the east coast of Florida and faces numerous harmful algal blooms. The potentially toxic diatom, Pseudonitzschia, has been observed in many locations of the IRL. The goal of this study was to obtain a better understanding of the factors contributing to population dynamics of Pseudo-nitzschia in the southern IRL system. Bi-monthly surface water samples were collected for 18 months from five locations. Cell counts enumerated all microphytoplankton, and environmental data was collected at sampling sites throughout the study by the Indian River Lagoon Observatory Network. Six species of Pseudonitzschia were isolated and characterized through 18S Sanger sequencing and scanning electron microscopy, all showed toxicity. Surface water samples also showed domoic acid (DA) presence. We report the first known occurrence of Pseudo-nitzschia micropora in the IRL and the first known DA production from this taxon.
Identifier: FA00013714 (IID)
Degree granted: Thesis (MS)--Florida Atlantic University, 2021.
Collection: FAU Electronic Theses and Dissertations Collection
Note(s): Includes bibliography.
Subject(s): Pseudo-nitzschia
Indian River (Fla. : Lagoon)
Algal blooms
Phytoplankton
Held by: Florida Atlantic University Libraries
Sublocation: Digital Library
Persistent Link to This Record: http://purl.flvc.org/fau/fd/FA00013714
Use and Reproduction: 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.
Use and Reproduction: http://rightsstatements.org/vocab/InC/1.0/
Host Institution: FAU
Is Part of Series: Florida Atlantic University Digital Library Collections.