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Title: Phosphorus-limited photosynthesis and growth of Sargassum natans and Sargassum fluitans (Phaeophyceae) in the western North Atlantic.
Creator: Lapointe, Brian E.
Date Issued: 1986
PURL: http://purl.flvc.org/FCLA/DT/3353770
Subject Headings: Phaeophyceae, Sargassum, Photosynthesis, Growth, Phosphorus
Format: Document (PDF)

Title: Productivity and nutrition of marine biomass systems in Florida.
Creator: Lapointe, Brian E., Hanisak, M. Dennis
Date Issued: 1985
PURL: http://purl.flvc.org/FCLA/DT/3327207
Subject Headings: Biomass, Marine algae, Gracilaria, Sargassum
Format: Document (PDF)

Title: Effects of marine algal proximate composition on methane yields.
Creator: Bird, Kimon T., Chynoweth, David P., Jerger, Douglas E., Harbor Branch Oceanographic Institute
Date Issued: 1990
PURL: http://purl.flvc.org/FCLA/DT/3333169
Subject Headings: Methane, Biogas, Gracilaria, Sargassum, Biomass
Format: Document (PDF)

Title: IMPACT OF SARGASSUM ACCUMULATIONS ON LOGGERHEAD HATCHLING RECRUITMENT TO NEARSHORE WATER ON A RAKED URBAN NESTING BEACH IN FLORIDA.
Creator: Schiariti, Joshua P., Salmon, Michael, Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
Abstract/Description: Hatchling loggerhead turtles emerge from subsurface nests on the beach at night, crawl down the beach and enter the sea. Recently, increases in a floating algae (Sargassum) has been reported in the mid-Atlantic and the Caribbean, resulting in large algal wrack on Florida beaches. The purpose of my study was to determine if these accumulations acted as a barrier, preventing hatchlings from completing their crawl to the sea. To address this issue I recorded seasonal changes in Sargassum density...
Show moreHatchling loggerhead turtles emerge from subsurface nests on the beach at night, crawl down the beach and enter the sea. Recently, increases in a floating algae (Sargassum) has been reported in the mid-Atlantic and the Caribbean, resulting in large algal wrack on Florida beaches. The purpose of my study was to determine if these accumulations acted as a barrier, preventing hatchlings from completing their crawl to the sea. To address this issue I recorded seasonal changes in Sargassum density and directly observed when, and under what circumstances, hatchlings could cross the wrack. There was a significant overlap between when Sargassum accumulation peaked and when the turtles emerged, with the result that hatchling recruitment was significantly reduced (by~22%) during the 2020 nesting season. I conclude that algal accumulations represent a significant threat that may impede the recovery of loggerhead populations, that are currently threatened or endangered worldwide.
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Date Issued: 2021
PURL: http://purl.flvc.org/fau/fd/FA00013806
Subject Headings: Loggerhead turtle, Sargassum, Conservation biology
Format: Document (PDF)

Title: Attraction of deep-sea amphipods to macrophyte food falls.
Creator: Lawson, G. S., Tyler, Paul A., Young, Craig M.
Date Issued: 1993
PURL: http://purl.flvc.org/FCLA/DT/3331871
Subject Headings: Amphipoda, Thalassia, Sargassum, Crustacea--Food
Format: Document (PDF)

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)

Title: Habitat selection among fishes and shrimp in the pelagic Sargassum Community: The role of habitat architecture.
Creator: Bennice, Chelsea, Brooks , W. Randy, Graduate College
Date Issued: 2011-04-08
PURL: http://purl.flvc.org/fcla/dt/3164454
Subject Headings: Pelagic fishes, Habitat selection, Sargassum --Sargasso Sea
Format: Document (PDF)

Title: On the expression of phenotypic variability: why is Sargassum so taxonomically difficult?.
Creator: Kilar, J. A., Yoshida, T., Hanisak, M. Dennis
Date Issued: 1992
PURL: http://purl.flvc.org/fau/fd/FA00007252
Subject Headings: Sargassum, Marine algae--Classification, Phenotype, Genotype
Format: Document (PDF)

Title: Seasonal patterns of morphological variability in Sargassum polyceratium (Phaeophyta).
Creator: Kilar, J. A., Hanisak, M. Dennis
Date Issued: 1988
PURL: http://purl.flvc.org/FCLA/DT/3342284
Subject Headings: Sargassum, Phaeophyta, Algae--Morphology, Cryptostomata
Format: Document (PDF)

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)

Title: THE USE OF CHEMICAL CUES BY SARGASSUM SHRIMPS LEANDER TENUICORNIS AND LATREUTES FUCORUM IN ESTABLISHING AND MAINTAINING A SYMBIOSIS WITH SARGASSUM ALGAE.
Creator: Frahm, Jaime L., Brooks, Randy, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description: A mutualistic symbiosis exists between the alga Sargassum spp. and two shrimp species, L. tenuicornis and L. fucorum. But little is known about how the shrimp locate their host alga. Both visual and chemical cues are potentially available. Visual cues would be presumably restricted at night but chemical cues are potentially available continuously. Additionally, a previous study has looked at both cue variables with results that are mixed. This current research elaborates on the previous study...
Show moreA mutualistic symbiosis exists between the alga Sargassum spp. and two shrimp species, L. tenuicornis and L. fucorum. But little is known about how the shrimp locate their host alga. Both visual and chemical cues are potentially available. Visual cues would be presumably restricted at night but chemical cues are potentially available continuously. Additionally, a previous study has looked at both cue variables with results that are mixed. This current research elaborates on the previous study in an attempt to fully understand Sargassum shrimp chemoreception. A y-maze and four-chambered apparatus were used to test if the shrimp were able to detect Sargassum cues, conspecific cues, and Dimethylsulfoniopropionate (DMSP) cues. Neither shrimp species showed a strong directional response to any of the chemical cues, but the Sargassum and DMSP cues did cause more shrimp to exhibit searching behavior. Additionally, several differences in response between male and female shrimp were found for each cue. A weaker dilution of DMSP was tested in an attempt to determine sensitivity of L. fucorum shrimp to the chemical cue. This weaker dilution also caused L. fucorum to exhibit searching behavior, but the sensitivity to the cue was not found and further research is needed to fully answer this question. These results show the shrimp are able to detect chemical cues in their environment and help determine more accurately the role of chemoreception in initiating and maintaining this shrimp/algal association.
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Date Issued: 2019
PURL: http://purl.flvc.org/fau/fd/FA00013308
Subject Headings: Sargassum, Symbiosis, Shrimps, Leander (Crustacea), Hippolytidae
Format: Document (PDF)

Title: The physiological effects of Sargassum beach coverage on three species of sea turtle hatchlings.
Creator: Chaney, Abigail, Milton, Sarah L., Florida Atlantic University, Department of Biological Sciences, Charles E. Schmidt College of Science
Abstract/Description: Sea turtle hatchlings face a variety of obstacles as they crawl down the beach to the ocean after emergence. One of these obstacles is Sargassum, a floating brown macroalgae, that washes up in large quantities on beaches from Florida to South America. This study examined the physiological response and physical performance of three species of sea turtle hatchlings (D. coriacea, C. caretta, and C. mydas) after crawling over various heights of Sargassum. In all three species, the addition of...
Show moreSea turtle hatchlings face a variety of obstacles as they crawl down the beach to the ocean after emergence. One of these obstacles is Sargassum, a floating brown macroalgae, that washes up in large quantities on beaches from Florida to South America. This study examined the physiological response and physical performance of three species of sea turtle hatchlings (D. coriacea, C. caretta, and C. mydas) after crawling over various heights of Sargassum. In all three species, the addition of Sargassum significantly increased the amount of time it took to crawl down the pathway. There was no significant difference in righting response, blood glucose levels, or plasma corticosterone concentrations between different crawling treatments. During periods of high Sargassum accumulation, hatchlings will spend more time on the beach trying to navigate through the algae, leaving them vulnerable to predation for longer periods of time.
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Date Issued: 2022
PURL: http://purl.flvc.org/fau/fd/FA00013939
Subject Headings: Sea turtles, Sargassum, Sea turtles--Ecology
Format: Document (PDF)

Title: Physiological responses of transplanted populations of Sargussum pteropleuron Grunow in Florida.
Creator: Dawes, Clinton J., Bird, Kimon T., Hanisak, M. Dennis
Date Issued: 1988
PURL: http://purl.flvc.org/FCLA/DT/3353810
Subject Headings: Sargassum, Brown algae, Transplanting (Plant culture), Florida, Plant ecophysiology
Format: Document (PDF)

Title: Seasonal and between-plant variability in the morphology of Sargassum mathiesonii sp. nov. (Phaeophyta) from the Gulf of Mexico.
Creator: Kilar, J. A., Harbor Branch Oceanographic Institute
Date Issued: 1992
PURL: http://purl.flvc.org/FCLA/DT/3342278
Subject Headings: Sargassum, Phaeophyta, Ontogeny, Fucales, Plants--Variation, Phenology
Format: Document (PDF)

Title: A comparative study of Sargassum polyporum from the Ryukyu Islands(Japan) and Sargassum polyceratium from the Florida Keys (United States).
Creator: Kilar, J. A., Ajisaka, T., Yoshida, T., Hanisak, M. Dennis
Date Issued: 1992
PURL: http://purl.flvc.org/fau/fd/FA00007207
Subject Headings: Florida Keys (Fla.), Ryukyu Islands, Sargassum, Morphology, Brown algae
Format: Document (PDF)

Title: Typification of Sargassum Filipendula C. Agardh (Phaeophyceae, Fucales, Sargassaceae) and thenames of two varieties.
Creator: Hanisak, M. Dennis, Kilar, J. A.
Date Issued: 1990
PURL: http://purl.flvc.org/fau/fd/FA00007201
Subject Headings: Sargassum, Phaeophyta, Brown algae, Fucales, Sargassaceae, Algae--Classification
Format: Document (PDF)

Title: Habitat selection among fishes and shrimp in the pelagic Sargassum community: the role of habitat architecture.
Creator: Bennice, Chelsea, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description: Pelagic Sargassum was used to determine the effects of habitat architecture for one species of shrimp (Leander tenuicornis) and two species of fish (Stephanolepis hispidus and Histrio histrio). Inter-thallus spacing (low, medium, and high) and depth (shallow versus deep) were manipulated independently to test whether the spatial components of habitat architecture. Two differing habitats (Sargassum versus seagrass species) were tested for the structural component of habitat architecture. There...
Show morePelagic Sargassum was used to determine the effects of habitat architecture for one species of shrimp (Leander tenuicornis) and two species of fish (Stephanolepis hispidus and Histrio histrio). Inter-thallus spacing (low, medium, and high) and depth (shallow versus deep) were manipulated independently to test whether the spatial components of habitat architecture. Two differing habitats (Sargassum versus seagrass species) were tested for the structural component of habitat architecture. There were no significant results for inter-thallus spacing experiments for L. tenuicornis and S. hispidus. H histrio selected habitats with medium inter-thallus spacing in two treatments. Large individual H. histrio contributed mostly to the significant effects. All three species selected habitats with a greater depth aspect. Finally, L. tenuicornis and H. histrio selected habitats with greater structural complexity (i.e., Sargassum). These results demonstrate clearly that habitat architecture of Sargassum influences habitat selection by these shrimp and fishes.
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Date Issued: 2012
PURL: http://purl.flvc.org/FAU/3358284
Subject Headings: Habitat (Ecology), Sargassum, Ecology, Animal behavior, Predation (Biology)
Format: Document (PDF)

Title: The role of chemical and visual cues by two Sargassum shrimps in locating and selecting habitats.
Creator: Jobe, Corrine F., Florida Atlantic University, Brooks, W. Randy, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description: The Sargassum community is comprised of a unique and diverse assemblage of organisms. Habitat detection by two of the most common invertebrates, Latreutes fucorum and Leander tenuicornis , was investigated. Results of this study do not support that either L. fucorum or L. tenuicornis respond to chemical cues released by the Sargassum habitat in the absence of other information. Habitat selection of both shrimp species was examined as well. Both L. fucorum and L. tenuicornis selected live...
Show moreThe Sargassum community is comprised of a unique and diverse assemblage of organisms. Habitat detection by two of the most common invertebrates, Latreutes fucorum and Leander tenuicornis , was investigated. Results of this study do not support that either L. fucorum or L. tenuicornis respond to chemical cues released by the Sargassum habitat in the absence of other information. Habitat selection of both shrimp species was examined as well. Both L. fucorum and L. tenuicornis selected live Sargassum over artificial Sargassum . Moreover, L. fucorum selected Sargassum natans over Sargassum fluitans when only visual cues were available, whereas large-sized L. tenuicornis selected S. fluitans under the same conditions. Conversely, habitat selection trials combining both chemical and visual cues resulted in no preference between the two Sargassum species by either shrimp species. Additional ecological factors that possibly influence habitat location and selection are discussed as well as the importance of Sargassum in terms of pelagic fisheries management.
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Date Issued: 2006
PURL: http://purl.flvc.org/fcla/dt/13381
Subject Headings: Habitat (Ecology), Sargassum, Marine chemical ecology, Animal behavior
Format: Document (PDF)

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)

Title: Habitat location and selection by the Sargassum crab Portunus sayi: the role of sensory cues.
Creator: West, Lorin E., Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description: The Sargassum community consists of a unique and idverse assemblage of fauna critical to pelagic food chains. Associated organisms presumably have adaptations to assist in finding Sargassum. This study investigated cues used for habitat location and selection by the Sargassum crab, Portunus sayi. Chemical detection trials were conducted with a two-chamber choice apparatus with Sargassum spp. and Thalassia testudinum as source odors. Visual detection trials (devoid of chemical cues) and...
Show moreThe Sargassum community consists of a unique and idverse assemblage of fauna critical to pelagic food chains. Associated organisms presumably have adaptations to assist in finding Sargassum. This study investigated cues used for habitat location and selection by the Sargassum crab, Portunus sayi. Chemical detection trials were conducted with a two-chamber choice apparatus with Sargassum spp. and Thalassia testudinum as source odors. Visual detection trials (devoid of chemical cues) and habitat selection trials were conducted in which crabs were given a choice of habitats. Results showed that P. sayi respoded to chemical odors from Sargassum spp. Crabs visually located habitats but did not visually distinguish between different habitats. In habitat selection trials, crabs selected Sargassum spp. over artificial Sargassum and T. testudinum. These results suggest that crabs isolated from Sargassum likely use chemoreception from longer distances ; within visual proximity of a potential patch, crabs use both chemical and visual information.
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Date Issued: 2012
PURL: http://purl.flvc.org/FAU/3356901
Subject Headings: Habitat (Ecology), Sargassum, Ecology, Marine chemical ecology, Chemoreceptors, Animal behavior, Animal communication, Portunus sayi, Ecology
Format: Document (PDF)

HBOI Faculty Contributions (13)	+ -
FAU Theses and Dissertations (8)	+ -
FAU Graduate Student Research (1)	+ -

Sargassum (20)	+ -
Animal behavior (4)	+ -
Habitat (Ecology) (4)	+ -
Brown algae (3)	+ -
Gracilaria (3)	+ -

Marine algae (3)	+ -
Marine chemical ecology (3)	+ -
Phaeophyta (3)	+ -
Biomass (2)	+ -
Ecology (2)	+ -
Fucales (2)	+ -
Growth (2)	+ -
Predation (Biology) (2)	+ -
Seaweeds (2)	+ -
Algae--Classification (1)	+ -
Algae--Morphology (1)	+ -
Amphipoda (1)	+ -
Animal communication (1)	+ -
Biogas (1)	+ -
Biomass energy (1)	+ -
Biotic communities (1)	+ -
Chemoreceptors (1)	+ -
Conservation biology (1)	+ -
Crustacea--Food (1)	+ -
Cryptostomata (1)	+ -
Environmental monitoring (1)	+ -
Florida (1)	+ -
Florida Keys (Fla.) (1)	+ -
Genotype (1)	+ -
Habitat selection (1)	+ -

article (13)	+ -
Electronic Thesis or Dissertation (8)	+ -
abstract (1)	+ -

Charles E. Schmidt College of Science (8)	+ -
Hanisak, M. Dennis (8)	+ -
Department of Biological Sciences (7)	+ -
Florida Atlantic University (6)	+ -
Kilar, J. A. (5)	+ -

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