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Phytoplankton
Title
Phytoplankton.
Creator
Víquez, R., Hargraves, Paul E.
Date Issued
2009
PURL
http://purl.flvc.org/FCLA/DT/3174241
Subject Headings
Marine phytoplankton, Phytoplankton, Biodiversity
Format
Document (PDF)
Senescence- and death-related alterations of chlorophylls and carotenoids in marine phytoplankton
Title
Senescence- and death-related alterations of chlorophylls and carotenoids in marine phytoplankton.
Creator
Liu, Lei, Florida Atlantic University, Louda, J. William
Abstract/Description
Fresh and aged unispecific samples have been analyzed using IP-RPHPLC and PDA in order to reveal the chlorophylls and carotenoids alterations during senescence and death. Aging studies showed that cyanobacterial chlorophyll- a was destroyed faster than carotenoids in room oxic conditions. The reverse was found for the other eukaryotic species. Species with high chlorophyllase activity produced phytol free chlorophyll derivatives during death. The rate of chlorophyll-a destruction was; room...
Show moreFresh and aged unispecific samples have been analyzed using IP-RPHPLC and PDA in order to reveal the chlorophylls and carotenoids alterations during senescence and death. Aging studies showed that cyanobacterial chlorophyll- a was destroyed faster than carotenoids in room oxic conditions. The reverse was found for the other eukaryotic species. Species with high chlorophyllase activity produced phytol free chlorophyll derivatives during death. The rate of chlorophyll-a destruction was; room oxic > room anoxic > cold anoxic. Pyropheophorbide-a was often the final product of type-I chlorophyll-a degradation. The conversion from fucoxanthin to fucoxanthinol was observed. Chlorophyll-c was found to be destroyed faster than chlorophyll-a. The quantitative relationship of certain "biomarker" pigments (e.g. fucoxanthin, zeaxanthin) to chlorophyll-a was found not to change significantly during the first 1--2 months senescence-death scenarios. This aids the field of chemotaxonomy in that valid estimations may still be made when phytoplankton populations contain senescent individuals.
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Date Issued
2000
PURL
http://purl.flvc.org/fcla/dt/12689
Subject Headings
Marine phytoplankton, Carotenoids, Chlorophyll
Format
Document (PDF)
Anthropogenic nutrient enrichment of seagrass and coral reef communities in the Lower Florida Keys: discrimination of local versus regional nitrogen sources
Title
Anthropogenic nutrient enrichment of seagrass and coral reef communities in the Lower Florida Keys: discrimination of local versus regional nitrogen sources.
Creator
Lapointe, Brian E., Barile, Peter J., Matzie, William R.
Date Issued
2004
PURL
http://purl.flvc.org/FCLA/DT/2848327
Subject Headings
Seagrasses, Nitrogen, Phosphorus, Eutrophication, Phytoplankton
Format
Document (PDF)
Mechanisms of tri-n-butyltin bioaccumulation by marine phytoplankton
Title
Mechanisms of tri-n-butyltin bioaccumulation by marine phytoplankton.
Creator
Chiles, Thomas C., Pendoley, Peter D., Laughlin, R. B., Jr., Harbor Branch Oceanographic Institute
Date Issued
1989
PURL
http://purl.flvc.org/FCLA/DT/3342231
Subject Headings
Tributyltin, Marine phytoplankton, Bioaccumulation, Trialkyltin Compounds
Format
Document (PDF)
Phytoplankton response to intrusions of slope water on the West Florida Shelf: Models and observations
Title
Phytoplankton response to intrusions of slope water on the West Florida Shelf: Models and observations.
Creator
Walsh, John J., Weisberg, Robert H., Dieterle, Dwight A., He, Ruoying, Darrow, Brian P., Jolliff, Jason K., Lester, Kristen M., Vargo, Gabriel A., Kirkpatrick, Gary J., Fanning, Kent A., Sutton, Tracey T., Jochens, Ann E., Biggs, Douglas C., Nababan, Bisman, Hu, Chuanmin, Muller-Karger, Frank E., Harbor Branch Oceanographic Institute
Date Issued
2003
PURL
http://purl.flvc.org/FCLA/DT/3172985
Subject Headings
Phytoplankton, Red tide --Florida, Diatoms, Upwelling (Oceanography)
Format
Document (PDF)
Separation and concentration of phytoplankton populations using centrifugal elutriation
Title
Separation and concentration of phytoplankton populations using centrifugal elutriation.
Creator
Pomponi, Shirley A., Cucci, T. L.
Date Issued
1989
PURL
http://purl.flvc.org/FCLA/DT/3342295
Subject Headings
Phytoplankton populations, Flow cytometry, Cell separation
Format
Document (PDF)
Phytoplankton ecology of the Indian River near Vero Beach, Florida
Title
Phytoplankton ecology of the Indian River near Vero Beach, Florida.
Creator
Mahoney, R. K., Gibson, R. A., Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/fau/fd/FA00007478
Subject Headings
Vero Beach (Fla.), Phytoplankton--Ecology, Indian River (Fla. : River)
Format
Document (PDF)
A check-list of the phytoplankton of the Indian River near Vero Beach, Florida
Title
A check-list of the phytoplankton of the Indian River near Vero Beach, Florida.
Creator
Mahoney, R. K., Gibson, R. A., Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/fau/fd/FA00007483
Subject Headings
Vero Beach (Fla.), Indian River (Fla. : River), Phytoplankton, Diatoms, Dinoflagellates
Format
Document (PDF)
Reply to Schoenberg
Title
Reply to Schoenberg.
Creator
Gerritsen, Jeroen, Orcutt, John D., Jr., Porter, Karen G., Harbor Branch Oceanographic Institute
Date Issued
1985
PURL
http://purl.flvc.org/FCLA/DT/3172810
Subject Headings
Chlamydomonas, Chlamydomonas reinhardtii, Eutrophication, Phytoplankton, Marine animals --Food
Format
Document (PDF)
A survey of themarine diatoms of Puerto Rico I. suborders Coscinodiscineae and Rhizosoleniineae
Title
A survey of themarine diatoms of Puerto Rico I. suborders Coscinodiscineae and Rhizosoleniineae.
Creator
Navarro, J. N., Harbor Branch Oceanographic Institute
Date Issued
1981
PURL
http://purl.flvc.org/fau/fd/FA00007009
Subject Headings
Puerto Rico, Diatoms, Taxonomy (Biology), Marine phytoplankton, Survey, Classification
Format
Document (PDF)
The effects of tropical storm Dennis on coastal phytoplankton
Title
The effects of tropical storm Dennis on coastal phytoplankton.
Creator
Zeeman, S. I., Harbor Branch Oceanographic Institute
Date Issued
1985
PURL
http://purl.flvc.org/FCLA/DT/3353756
Subject Headings
Storms, Coastal waters, Phytoplankton, Estuaries, Primary productivity (Biology)
Format
Document (PDF)
Photoacclimation and the effect of the symbiotic environment on the photosynthetic response of symbiotic dinoflagellates in the tropical marine hydroid Myrionema amboinense
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)
PSEUDO-NITZSCHIA IN THE INDIAN RIVER LAGOON: AN EMERGING THREAT FOR FLORIDA
Title
PSEUDO-NITZSCHIA IN THE INDIAN RIVER LAGOON: AN EMERGING THREAT FOR FLORIDA.
Creator
Schreiber, Stephanie, Sullivan, James, Florida Atlantic University, Department of Marine Science and Oceanography, Charles E. Schmidt College of Science
Abstract/Description
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...
Show moreThe 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.
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Date Issued
2021
PURL
http://purl.flvc.org/fau/fd/FA00013714
Subject Headings
Pseudo-nitzschia, Indian River (Fla. : Lagoon), Algal blooms, Phytoplankton
Format
Document (PDF)
Future studies of zooplankton behavior: questions and technological developments
Title
Future studies of zooplankton behavior: questions and technological developments.
Creator
Price, H. J., Paffenhöfer, G.-A., Boyd, C. M., Cowles, T. J., Donaghay, P. L., Hamner, W. M., Lampert, W., Quetin, L.B., Ross, R. M., Strickler, J. R., Youngbluth, Marsh J.
Date Issued
1988
PURL
http://purl.flvc.org/FCLA/DT/3172784
Subject Headings
Marine zooplankton --Behavior --Congresses, Phytoplankton, Predation (Biology), Plankton --Ecology, Remote submersibles
Format
Document (PDF)
Pigment-based chemotaxonomy of phytoplankton in Lake Okeechobee, Florida and effects of irradiance on cyanobacteria
Title
Pigment-based chemotaxonomy of phytoplankton in Lake Okeechobee, Florida and effects of irradiance on cyanobacteria.
Creator
Skoog, Kathryn Owen., Florida Atlantic University, Louda, J. William
Abstract/Description
The phytoplankton community of Lake Okeechobee, Florida, has been studied and algal divisions were identified. Chemotaxonomy is a process that assigns taxonomic divisions based on ratios of biomarker pigments to chlorophyll, as measured by high performance liquid chromatography (HPLC). Microscopic counts of taxonomic groups were compared to chemotaxonomic groups for lake samples for one year. Lab cultures of cyanobacteria grown at irradiance of 2 to 500 micromoles photons m-2 s-1 (muEinsteins...
Show moreThe phytoplankton community of Lake Okeechobee, Florida, has been studied and algal divisions were identified. Chemotaxonomy is a process that assigns taxonomic divisions based on ratios of biomarker pigments to chlorophyll, as measured by high performance liquid chromatography (HPLC). Microscopic counts of taxonomic groups were compared to chemotaxonomic groups for lake samples for one year. Lab cultures of cyanobacteria grown at irradiance of 2 to 500 micromoles photons m-2 s-1 (muEinsteins) suggested that internal ratios of chlorophyll to both zeaxanthin and echinenone could be used to estimate abundance of cyanobacteria, as either alone missed certain populations. Lake water samples showed that both methods agreed that diatoms and cyanobacteria were the dominant groups, with moderate number of green algae and few dinoflagellates. HPLC evidence revealed cryptophytes more frequently than did microscopy. This suggested that cryptophytes may be more significant than has been previously reported.
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Date Issued
2003
PURL
http://purl.flvc.org/fcla/dt/13044
Subject Headings
Cyanobacteria, Phytoplankton--Florida--Okeechobee, Lake, Plant pigments--Florida--Okeechobee, Lake, Okeechobee, Lake (Fla )
Format
Document (PDF)
Distribution and abundance of micronekton and macrozooplankton in the NW Weddell Sea: relation to a spring ice-edge bloom
Title
Distribution and abundance of micronekton and macrozooplankton in the NW Weddell Sea: relation to a spring ice-edge bloom.
Creator
Donnelly, Joseph, Sutton, Tracey T., Torres, Joseph J., Harbor Branch Oceanographic Institute
Date Issued
2005
PURL
http://purl.flvc.org/FCLA/DT/2796073
Subject Headings
Nekton --Antarctica --Weddell Sea, Zooplankton --Antarctica --Weddell Sea, Marine phytoplankton --Antarctica --Weddell Sea, Climatic changes --Congresses, Sea ice --Antarctica
Format
Document (PDF)