Current Search: Dinoflagellates (x)
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Pages
- Title
- Localization of polyketide synthase encoding genes to the toxic dinoflagellate Karenia brevis.
- Creator
- Snyder, Richard V., Guerrero, Maria A., Sinigalliano, Christopher D., Winshell, Jamie, Perez, Roberto, Lopez, Jose V., Rein, Kathleen S., Harbor Branch Oceanographic Institute
- Date Issued
- 2005
- PURL
- http://purl.flvc.org/FCLA/DT/2827832
- Subject Headings
- Polyketides, Dinoflagellates, Fossil --Identification, Seafood --Contamination, Seafood --Microbiology, Microbial ecology
- Format
- Document (PDF)
- Title
- The role of symbiotic dinoflagellates in the temperature-induced bleaching response of the subtropical sea anemone Aiptasia pallida.
- Creator
- Perez, Santiago F., Cook, Clayton B., Brooks, W. Randy
- Date Issued
- 2001
- PURL
- http://purl.flvc.org/FCLA/DT/3165425
- Subject Headings
- Coral bleaching, Dinoflagellates, Zooxanthella, Sea anemones, Symbiosis, Photosynthesis
- Format
- Document (PDF)
- Title
- Uptake and assimilation of 15N-ammonium by the symbiotic sea anemones, Bartholomea annulata and Aiptasia pallida: conservation versus recycling of nitrogen.
- Creator
- Lipschultz, F, Cook, Clayton B.
- Date Issued
- 2001
- PURL
- http://purl.flvc.org/FCLA/DT/2783238
- Subject Headings
- Dinoflagellates, Nitrification, Nitrates --physiology, Ammonia--metabolism, Coral reef --ecology
- Format
- Document (PDF)
- Title
- Alkaline phosphatase activity in symbiotic dinoflagellates (zooxanthellae) as a biological indicator of environmental phosphate exposure.
- Creator
- Annis, E. R., Cook, Clayton B.
- Date Issued
- 2002
- PURL
- http://purl.flvc.org/FCLA/DT/3350894
- Subject Headings
- Dinoflagellates, Zooxanthella, Symbiosis, Alkaline phosphatase, Acid phosphatase, Montastraea
- Format
- Document (PDF)
- Title
- Photoacclimation and the effect of the symbiotic environment on the photosynthetic response of symbiotic dinoflagellates in the tropical marine hydroid Myrionema amboinense.
- Creator
- Fitt, William K., Cook, Clayton B.
- Date Issued
- 2001
- PURL
- http://purl.flvc.org/FCLA/DT/3165436
- Subject Headings
- Phytoplankton --Adaptation, Symbiosis, Dinoflagellates, Zooxanthella, Algae culture, Algal blooms, Hydromedusae
- Format
- Document (PDF)
- Title
- The role of symbiotic dinoflagellates in the temperature-induced bleaching response of Aiptasia pallida.
- Creator
- Perez, Santiago F., Florida Atlantic University, Marsh, G. Alex, Cook, Clayton B., Brooks, W. Randy, Koch, Marguerite
- Abstract/Description
-
Bleaching of reef corals and other cnidarians symbiotic with zooxanthellae can be attributed to the stress response of the host, algae or both. To determine if zooxanthellae are involved in the bleaching process, I infected a single strain of sea anemone, Aiptasia pallida with zooxanthellae from different hosts. I measured expulsion of the algae from the host during 24-hour incubations at 25, 32 and 34C, as well as photosynthetic rates at these temperatures. Photosynthesis and expulsion of...
Show moreBleaching of reef corals and other cnidarians symbiotic with zooxanthellae can be attributed to the stress response of the host, algae or both. To determine if zooxanthellae are involved in the bleaching process, I infected a single strain of sea anemone, Aiptasia pallida with zooxanthellae from different hosts. I measured expulsion of the algae from the host during 24-hour incubations at 25, 32 and 34C, as well as photosynthetic rates at these temperatures. Photosynthesis and expulsion of zooxanthellae were inversely and directly proportional to elevated temperatures, respectively. Photosynthesis and expulsion of zooxanthellae isolated from Condylactis gigantea showed the greatest sensitivity to elevated temperature when compared to other zooxanthellae tested. These results suggest that zooxanthellae have a function in the bleaching process and that this function may be related to their photosynthetic response. Thus, the differential tolerance of zooxanthellae to stress could partly explain the spatial variability characteristic of coral-bleaching episodes.
Show less - Date Issued
- 1999
- PURL
- http://purl.flvc.org/fcla/dt/15698
- Subject Headings
- Dinoflagellates, Sea anemones, Coral reef ecology, Seawater--Thermal properties
- Format
- Document (PDF)
- Title
- Taxonomy of Pfiesteria (Dinophyceae).
- Creator
- Marshall, Harold G., Hargraves, Paul E., Burkholder, JoAnn M., Parrow, Matthew W., Elbrachter, Malte, Allen, Elle H., Knowlton, Valerie M., Rublee, Parke A., Hynes, Wayne L., Egerton, Todd A., Remington, David L., Wyatt, K.B., Lewitus, Alan J., Henrich, Vince C.
- Date Issued
- 2006
- PURL
- http://purl.flvc.org/FCLA/DT/2875925
- Subject Headings
- Dinoflagellates, Fossil --Identification, Toxic algae --Toxicology, Electron microscopy --Technique, Phylogeny, Microalgae
- Format
- Document (PDF)
- Title
- Inhalation toxicity of Brevetoxin 3 in rats exposed for 5 days.
- Creator
- Benson, Janet M., Hahn, Fletcher F., March, Thomas H., McDonald, Jacob D., Sopori, Mohan L., Seagrave, JeanClare, Gomez, Andrea P., Bourdelais, Andrea J., Naar, Jerome, Zaias, Julia, Bossart, Gregory D., Baden, Daniel G., Harbor Branch Oceanographic Institute
- Date Issued
- 2004
- PURL
- http://purl.flvc.org/FCLA/DT/2796034
- Subject Headings
- Dinoflagellates --Cytology, Macrophages, Red tide, Neurotoxic agents --Analysis, Neurotoxic agents --Physiological effect
- Format
- Document (PDF)
- Title
- Red tide and marine mammal mortalities.
- Creator
- Flewelling, L. J., Naar, Jerome, Abbott, J. P., Baden, Daniel G., Barros, N. B., Bossart, Gregory D., Bottein, M-Y. D., Hammond, Daniel G., Haubold, E. M., Heil, Cynthia A., Henry, M. S., Jacocks, H. M., Leighfield, T. A., Pierce, Richard H., Pitchford, T. D., Rommel, Sentiel A., Scott, P. S., Steidinger, K. A., Truby, E. W., Van Dolah, F. M., Landsberg, J. H., Harbor Branch Oceanographic Institute
- Date Issued
- 2005
- PURL
- http://purl.flvc.org/FCLA/DT/3183799
- Subject Headings
- Marine toxins, Dinoflagellate blooms, Red tide, Marine mammals--Mortality--United States
- Format
- Document (PDF)
- Title
- Shifts in copepod grazing on varying concentrations of two bioluminescent dinoflagellate species.
- Creator
- Breitlow, Karen A., Florida Atlantic University, Widder, Edith A.
- Abstract/Description
-
Grazing on bioluminescent and nonluminescent prey by the copepod Acartia tonsa was examined to determine the effect dinoflagellate bioluminescence has on copepod feeding preferences and rates. The percentage of cells ml-1 remaining after 30 minutes of copepod grazing on the dinoflagellates Lingulodinium polyedrum and Pyrodinium bahamense in their bioluminescent and nonbioluminescent phases was used to compare results for concentrations of 10, 1,000, and 3,000 cells ml-1. The nonluminescent...
Show moreGrazing on bioluminescent and nonluminescent prey by the copepod Acartia tonsa was examined to determine the effect dinoflagellate bioluminescence has on copepod feeding preferences and rates. The percentage of cells ml-1 remaining after 30 minutes of copepod grazing on the dinoflagellates Lingulodinium polyedrum and Pyrodinium bahamense in their bioluminescent and nonbioluminescent phases was used to compare results for concentrations of 10, 1,000, and 3,000 cells ml-1. The nonluminescent diatom Thalassiosira eccentrica was later offered along with each of the dinoflagellates. When diatoms were offered with P. bahamense, the copepods consumed them in equal amounts regardless of bioluminescence at the lower concentration, while the higher concentration showed decreased grazing with bioluminescence. Nonbioluminescent L. polyedrum was consumed at a high rate for all concentrations, but grazing decreased once they were bioluminescent. Copepods switched to T. eccentrica once the dinoflagellates became bioluminescent, except at 3,000 cells ml-1, at which all grazing was reduced. These results indicate there may be a threshold concentration separating two functions of dinoflagellate bioluminescence.
Show less - Date Issued
- 2006
- PURL
- http://purl.flvc.org/fcla/dt/13357
- Subject Headings
- Dinoflagellates, Marine pharmacology, Bioluminescence, Marine animals--Behavior, Predation (Biology), Adaptation (Biology)
- Format
- Document (PDF)