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Agar yield, quality and standing crop biomass of Gelidium serrulatum, Gelidium floridanum, and Pterocladia capillacea in Venezuela
Title
Agar yield, quality and standing crop biomass of Gelidium serrulatum, Gelidium floridanum, and Pterocladia capillacea in Venezuela.
Creator
Lemus, Andres, Bird, Kimon T., Kapraun, D. Fritz, Koehn, F. E., Harbor Branch Oceanographic Institute
Date Issued
1991
PURL
http://purl.flvc.org/FCLA/DT/3355148
Subject Headings
Seaweed, Marine algae, Agar
Format
Document (PDF)
The experimental cultivation of the red seaweed Gracilaria tikvahiae as an "energy crop": an overview
Title
The experimental cultivation of the red seaweed Gracilaria tikvahiae as an "energy crop": an overview.
Creator
Hanisak, M. Dennis, Ryther, John H.
Date Issued
1986
PURL
http://purl.flvc.org/FCLA/DT/3327203
Subject Headings
Gracilaria, Red seaweeds, Energy crops
Format
Document (PDF)
Application of the functional-form model to the culture of seaweeds
Title
Application of the functional-form model to the culture of seaweeds.
Creator
Hanisak, M. Dennis, Littler, Mark M., Littler, Diane S.
Date Issued
1990
PURL
http://purl.flvc.org/FCLA/DT/3333154
Subject Headings
Seaweeds, Algae culture, Marine algae culture
Format
Document (PDF)
Cultivation of seaweeds as abiomass source for energy
Title
Cultivation of seaweeds as abiomass source for energy.
Creator
Ryther, John H., Lapointe, Brian E., Stenberg, Richard W., Williams, Lavergne D.
Date Issued
1977
PURL
http://purl.flvc.org/fau/fd/FA00007128
Subject Headings
Seaweeds, Marine algae culture, Biomass, Biomass energy
Format
Document (PDF)
Anaerobic digestion and nutrient recyclingof small benthic or floating seaweeds
Title
Anaerobic digestion and nutrient recyclingof small benthic or floating seaweeds.
Creator
Ryther, John H., Hanisak, M. Dennis
Date Issued
1981
PURL
http://purl.flvc.org/fau/fd/FA00007119
Subject Headings
Marine algae, Seaweeds, Biomass energy, Gracilaria, Sargassum
Format
Document (PDF)
Land-based cultivation of seaweeds: an assessment of their potential yields for "energy farming."
Title
Land-based cultivation of seaweeds: an assessment of their potential yields for "energy farming.".
Creator
Hanisak, M. Dennis, Ryther, John H.
Date Issued
1983
PURL
http://purl.flvc.org/fau/fd/FA00007368
Subject Headings
Seaweeds, Gracilaria, Energy crops, Biomass, Methane
Format
Document (PDF)
Seaweed cultivation: Global trends
Title
Seaweed cultivation: Global trends.
Creator
Hanisak, M. Dennis
Date Issued
1998
PURL
http://purl.flvc.org/FCLA/DT/3352944
Subject Headings
Seaweed, Marine algae culture, Aquaculture, Mariculture, Global
Format
Document (PDF)
Phosphorus- and nitrogen-limited photosynthesis and growth of Gracilaria tikvahiae (Rhodophyceae) in the Florida Keys: An experimental field study.
Title
Phosphorus- and nitrogen-limited photosynthesis and growth of Gracilaria tikvahiae (Rhodophyceae) in the Florida Keys: An experimental field study.
Creator
Lapointe, Brian E.
Date Issued
1987
PURL
http://purl.flvc.org/FCLA/DT/3176753
Subject Headings
Red algae, Red seaweeds, Rhodophyceae, Rhodophyta
Format
Document (PDF)
Nitrogen release from decomposing seaweeds: species and temperature effects
Title
Nitrogen release from decomposing seaweeds: species and temperature effects.
Creator
Hanisak, M. Dennis
Date Issued
1993
PURL
http://purl.flvc.org/FCLA/DT/3333210
Subject Headings
Decomposition (Chemistry), Nitrogen, Gracilaria, Seaweeds, Temperature
Format
Document (PDF)
Growth rates in culture of several species of Sargassum from Florida, USA
Title
Growth rates in culture of several species of Sargassum from Florida, USA.
Creator
Hanisak, M. Dennis, Samuel, M. A.
Date Issued
1987
PURL
http://purl.flvc.org/FCLA/DT/3333089
Subject Headings
Sargassum, Mariculture, Growth, Seaweeds, Marine algae culture
Format
Document (PDF)
CLIMATE CHANGE AND OCEAN ACIDIFICATION EFFECTS ON TROPICAL REEF MACROALGAE
Title
CLIMATE CHANGE AND OCEAN ACIDIFICATION EFFECTS ON TROPICAL REEF MACROALGAE.
Creator
McNicholl, Conall, Koch, Marguerite S., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
Abstract/Description
Tropical marine macroalgae perform an essential role in coral reef function and health, however, their persistence in a rapidly changing ocean remains uncertain. The rise in sea surface temperatures and decrease in pH (ocean acidification = OA) are predicted to have damaging effects on marine calcifiers. Calcifying macroalgae have varied, often negative, responses to these conditions, however our lack of understanding about the mechanisms involved with calcification prevent us from...
Show moreTropical marine macroalgae perform an essential role in coral reef function and health, however, their persistence in a rapidly changing ocean remains uncertain. The rise in sea surface temperatures and decrease in pH (ocean acidification = OA) are predicted to have damaging effects on marine calcifiers. Calcifying macroalgae have varied, often negative, responses to these conditions, however our lack of understanding about the mechanisms involved with calcification prevent us from interpreting these results fully. Thus, I conducted a series of experiments on five calcifying species, utilizing microsensors, radioisotopes, and mesocosms, in an attempt to define biotic and abiotic mechanisms involved in calcification and dissolution under OA. Microsensor work demonstrated that all species elevate the thalli surface pH 2-3X higher under OA, which promoted calcification. The use of a photosynthetic inhibitor revealed species-specific light-triggered thalli pH control that stimulated calcification, indicating strong biotic control over calcification. When exposed to OA conditions, stronger organismal control over calcification was shown to maintain calcification in the light. A major gap in our understanding of calcification under OA is whether it affects organismal capacity to form new calcium carbonate, or if dissolution occurs, reducing calcification rates. Using radioisotopes, I found that the ability to form new calcium carbonate under OA in the light was not affected in any species. This suggested that species with reduced net calcification were actually experiencing dissolution. This study also highlighted that all species were experiencing dissolution in the dark under OA. Finally, in a short-term growth experiment, I examined the combined effects of OA and increased temperature and found complex responses in species that are negatively affected by OA. This included a crustose coralline that appears to have an additive negative effect where temperature enhances the effect of OA but also a species that exhibited a negative effect which was evidently offset with increased temperature. Here, I define distinct abiotic (light, temperature, dissolution) and biotic (proton pump & photosynthesis), that are essential for understanding macroalgae persistence on future coral reefs.
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Date Issued
2019
PURL
http://purl.flvc.org/fau/fd/FA00013397
Subject Headings
Coral reefs, Seaweed, Climate Change, Ocean acidification
Format
Document (PDF)
Cultivation biology of Gracilaria tikvahiae in the United States
Title
Cultivation biology of Gracilaria tikvahiae in the United States.
Creator
Hanisak, M. Dennis, Ryther, John H.
Date Issued
1984
PURL
http://purl.flvc.org/FCLA/DT/3333076
Subject Headings
Gracilaria, Mariculture--Environmental aspects, Marine algae culture, Seaweed
Format
Document (PDF)
Antimicrobial and antineoplastic activity in some South Florida seaweeds.
Title
Antimicrobial and antineoplastic activity in some South Florida seaweeds.
Creator
Hodgson, L. M., Harbor Branch Oceanographic Institute
Date Issued
1984
PURL
http://purl.flvc.org/fau/fd/FA00007020
Subject Headings
Marine algae--Florida, Antineoplastic agents, Antimicrobial agents, Seaweeds
Format
Document (PDF)
Studies on carrageenans and effects of seawater phosphorus concentration on carrageenan content and growth of Agarhdiella subulata (C. Agardh) Kraft and Wynne (Rhodophyceae, Solieriaceae)
Title
Studies on carrageenans and effects of seawater phosphorus concentration on carrageenan content and growth of Agarhdiella subulata (C. Agardh) Kraft and Wynne (Rhodophyceae, Solieriaceae).
Creator
Chopin, T., Hanisak, M. Dennis, Koehn, F. E., Mollion, J., Moreau, S.
Date Issued
1990
PURL
http://purl.flvc.org/FCLA/DT/3333156
Subject Headings
Carrageenan, Rhodophyceae, Seaweed, Algae culture, Algae--Growth, Phosphorus
Format
Document (PDF)
A comparison of nutrient-limited productivity in Sargassum natans from neritic vs. oceanic waters of the western North Atlantic Ocean
Title
A comparison of nutrient-limited productivity in Sargassum natans from neritic vs. oceanic waters of the western North Atlantic Ocean.
Creator
Lapointe, Brian E.
Date Issued
1995
PURL
http://purl.flvc.org/FCLA/DT/3343820
Subject Headings
Sargassum, Marine algae--North Atlantic Ocean, Seaweed, Seawater--Analysis
Format
Document (PDF)