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Studies on fouling invertebrates in the Indian River, Florida 2: effect of Modulus modulus (Prosobranchia: Modulidae)
Title
Studies on fouling invertebrates in the Indian River, Florida 2: effect of Modulus modulus (Prosobranchia: Modulidae).
Creator
Mook, David H., Harbor Branch Oceanographic Institute
Date Issued
1977
PURL
http://purl.flvc.org/FCLA/DT/3186449
Subject Headings
Fouling organisms, Prosobranchia, Indian River (Fla. : Lagoon), Seagrasses--Ecology
Format
Document (PDF)
Productivity and biomass of Thalassia testudinum as related to water column nutrient availability and epiphyte levels: field observations and experimental studies
Title
Productivity and biomass of Thalassia testudinum as related to water column nutrient availability and epiphyte levels: field observations and experimental studies.
Creator
Tomasko, D. A., Lapointe, Brian E.
Date Issued
1991
PURL
http://purl.flvc.org/FCLA/DT/3350863
Subject Headings
Seagrasses, Seagrasses --Ecology, Seagrasses --Caribbean Area --Congresses, Seagrasses --Florida, Epiphytes
Format
Document (PDF)
Latitudinal patterns in seagrass epifauna: Do patterns exist, and can they be explained?
Title
Latitudinal patterns in seagrass epifauna: Do patterns exist, and can they be explained?.
Creator
Virnstein, Robert W., Nelson, Walter G., Lewis, F. Graham, III, Howard, Robert K., Harbor Branch Oceanographic Institute
Date Issued
1984
PURL
http://purl.flvc.org/FCLA/DT/3174854
Subject Headings
Seagrasses--Habitat, Benthic animals, Seagrasses--Ecology, Latitude variation
Format
Document (PDF)
Eutrophication and trophic state classification of seagrass communities in the Florida Keys
Title
Eutrophication and trophic state classification of seagrass communities in the Florida Keys.
Creator
Lapointe, Brian E., Tomasko, David A., Matzie, William R., Harbor Branch Oceanographic Institute
Date Issued
1994
PURL
http://purl.flvc.org/FCLA/DT/3172798
Subject Headings
Seagrasses --Florida, Seagrasses --Florida --Identification, Seagrasses --Habitat, Seagrasses --Ecology, Eutrophication
Format
Document (PDF)
Distribution of macrofauna within seagrass beds: an explanation for patterns of abundance
Title
Distribution of macrofauna within seagrass beds: an explanation for patterns of abundance.
Creator
Lewis, F. Graham, III, Stoner, Allan W., Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/FCLA/DT/3174454
Subject Headings
Seagrasses--Florida, Seagrasses--Ecology, Seagrasses--Habitat
Format
Document (PDF)
Harbortown marina seagrass study
Title
Harbortown marina seagrass study.
Creator
Virnstein, Robert W., Cairns, Kalani D., Capone, Mary Ann, Mikkelsen, Paul S.
Date Issued
1985-04-17
PURL
http://purl.flvc.org/fcla/dt/3358977
Subject Headings
Seagrasses, Seagrasses--Ecology, Seagrasses--Habitat, Seagrasses--Florida
Format
Document (PDF)
Community structure ofthe macrobenthos associated with seagrass of the Indian River estuary, Florida
Title
Community structure ofthe macrobenthos associated with seagrass of the Indian River estuary, Florida.
Creator
Young, David K., Young, Martha W., Harbor Branch Oceanographic Institute
Date Issued
1977
PURL
http://purl.flvc.org/fau/fd/FA00007287
Subject Headings
Indian River (Fla. : Lagoon), Benthos, Seagrasses--Ecology, Predator & prey
Format
Document (PDF)
The role of predationby decapod crustaceans in seagrass ecosystems
Title
The role of predationby decapod crustaceans in seagrass ecosystems.
Creator
Nelson, Walter G., Harbor Branch Oceanographic Institute
Date Issued
1981
PURL
http://purl.flvc.org/fau/fd/FA00007090
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Seagrasses--Ecology, Ecosystems, Decapoda (Crustacea), Predation (Biology)
Format
Document (PDF)
Subtropical-tropical seagrass communities of the Southeastern United States: fishes and fishcommunities
Title
Subtropical-tropical seagrass communities of the Southeastern United States: fishes and fishcommunities.
Creator
Gilmore, R. G., Harbor Branch Oceanographic Institute
Date Issued
1987
PURL
http://purl.flvc.org/fau/fd/FA00007291
Subject Headings
Southeastern United States, Fish communities, Fishes, Seagrasses--Ecology, Fishes--Habitat
Format
Document (PDF)
The influence of predatory decapods, refuge, and microhabitat selection on seagrass communities
Title
The influence of predatory decapods, refuge, and microhabitat selection on seagrass communities.
Creator
Leber, Kenneth M., Harbor Branch Oceanographic Institute
Date Issued
1985
PURL
http://purl.flvc.org/FCLA/DT/3172808
Subject Headings
Shrimps, Seagrasses --Mexico, Gulf of --Identification, Seagrasses –Ecology, Thalassia, Decapoda (Crustacea), Predation (Biology)
Format
Document (PDF)
Nekton: biomass and abundance
Title
Nekton: biomass and abundance.
Creator
Gilmore, R. G., Harbor Branch Oceanographic Institute
Date Issued
1990
PURL
http://purl.flvc.org/FCLA/DT/3352205
Subject Headings
Nekton, Biomass, Seagrasses--Ecology, Numbers of species, Seagrasses--Habitat
Format
Document (PDF)
Seagrass biodiversity in the Indian River Lagoon
Title
Seagrass biodiversity in the Indian River Lagoon.
Creator
Dawes, Clinton J., Hanisak, M. Dennis, Kenworthy, W. Judson
Date Issued
1995
PURL
http://purl.flvc.org/FCLA/DT/3172863
Subject Headings
Seagrasses, Seagrasses --Florida --Indian River (Lagoon), Seagrasses --Ecology, Seagrasses --Habitat, Aquatic plants, Estuarine plants
Format
Document (PDF)
Photomapping and species composition of the seagrass beds in Florida's Indian River estuary
Title
Photomapping and species composition of the seagrass beds in Florida's Indian River estuary.
Creator
Thompson, M. John
Date Issued
1976-12-01
PURL
http://purl.flvc.org/fcla/dt/3358477
Subject Headings
Seagrasses--Ecology, Seagrasses, Continental margins, Indian River (Fla. : Lagoon), Estuaries
Format
Document (PDF)
Species densities of macrobenthos associated with seagrass: a field experimental study of predation
Title
Species densities of macrobenthos associated with seagrass: a field experimental study of predation.
Creator
Young, David K., Buzas, M. A., Young, Martha W., Harbor Branch Oceanographic Institute
Date Issued
1976
PURL
http://purl.flvc.org/FCLA/DT/3352181
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Predation (Biology), Seagrasses--Ecology, Food webs, Species
Format
Document (PDF)
Regulation of species densities of seagrass-associated macrobenthos: evidence from field experiments in the Indian River estuary, Florida
Title
Regulation of species densities of seagrass-associated macrobenthos: evidence from field experiments in the Indian River estuary, Florida.
Creator
Young, David K., Young, Martha W., Harbor Branch Oceanographic Institute
Date Issued
1978
PURL
http://purl.flvc.org/FCLA/DT/3352183
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Seagrasses--Ecology, Predators, Cages, Species
Format
Document (PDF)
Community studies in seagrass meadows: A comparison of two methods for sampling macroinvertebrates and fishes
Title
Community studies in seagrass meadows: A comparison of two methods for sampling macroinvertebrates and fishes.
Creator
Leber, Kenneth M., Greening, Holly S., Harbor Branch Oceanographic Institute
Date Issued
1986
PURL
http://purl.flvc.org/FCLA/DT/3336787
Subject Headings
Seagrasses--Ecology, Sampling--Technique, Invertebrates, Fishes, Scrapers (Tools), Trawls and trawling
Format
Document (PDF)
Sulfur-35 incorporation in the seagrass Thalassia testudinum under oxic and anoxic conditions
Title
Sulfur-35 incorporation in the seagrass Thalassia testudinum under oxic and anoxic conditions.
Creator
Peters, Jasmine Star., Florida Atlantic University, Koch, Marguerite
Abstract/Description
Currently, there is a great deal of interest in the role of sulfur in the seagrass ecosystems and for sulfide, a known phytotoxin, in particular. This research used a 35S tracer technique to examine sulfur metabolism in the seagrass Thalassia testudinum. The uptake of the 35S radiotracer was documented at similar rates under both oxic and anoxic treatments. The highest total radioactivity was in root and rhizome tissue, as compared to the leaves. 35S translocation from roots to leaves was...
Show moreCurrently, there is a great deal of interest in the role of sulfur in the seagrass ecosystems and for sulfide, a known phytotoxin, in particular. This research used a 35S tracer technique to examine sulfur metabolism in the seagrass Thalassia testudinum. The uptake of the 35S radiotracer was documented at similar rates under both oxic and anoxic treatments. The highest total radioactivity was in root and rhizome tissue, as compared to the leaves. 35S translocation from roots to leaves was found to be more efficient in young versus mature leaves. Total sulfur uptake was estimated and found to be significantly different between root and rhizome tissue under oxic conditions. In the anoxic treatment, 1 mM sulfide may have been a threshold, at which the seagrass showed reduced uptake of 35S into the below-ground tissue. While the plants assisted in the production of sulfide in this experiment, sulfide accumulation may inhibit 35S uptake. This is counter to the idea of increased sulfide intrusion under sediment hypoxia. This study represents the first attempt to use 35S to trace sulfur incorporation into seagrass; further research will be required to understand the complex sulfur biochemistry of these important marine plants using this method.
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Date Issued
2006
PURL
http://purl.flvc.org/fcla/dt/13385
Subject Headings
Seagrasses--Ecology, Sulfates--Physiological effect, Plant morphology, Marine sediments
Format
Document (PDF)
Experimental studies of decapod and fish predation on seagrass macrobenthos
Title
Experimental studies of decapod and fish predation on seagrass macrobenthos.
Creator
Nelson, Walter G., Harbor Branch Oceanographic Institute
Date Issued
1981
PURL
http://purl.flvc.org/FCLA/DT/3350839
Subject Headings
Decapoda (Crustacea), Predation (Biology), Lagodon rhomboids, Blue crab, Palaemonetes, Penaeus duorarum, Seagrasses --Ecology, Indian River (Fla.: Lagoon)
Format
Document (PDF)
A Modeling Study on The Effects of Seagrass Beds on the Hydrodynamics in the Indian River Lagoon
Title
A Modeling Study on The Effects of Seagrass Beds on the Hydrodynamics in the Indian River Lagoon.
Creator
Habib, MD Ahsan, Jiang, Mingshun, Florida Atlantic University, College of Engineering and Computer Science, Department of Ocean and Mechanical Engineering
Abstract/Description
Seagrass is a key stone component for the Indian River Lagoon (IRL) ecosystem, and therefore it is an important topic for many studies in the lagoon. This study focuses on the effects of seagrass beds on the hydrodynamics in the IRL. A hydrodynamic model based on the Delft3D modeling system has been developed for the southern IRL including the St. Lucie estuary, Ft. Pierce and St. Lucie Inlets, and adjacent coastal waters. The model is driven by freshwater inputs from the watershed, tides,...
Show moreSeagrass is a key stone component for the Indian River Lagoon (IRL) ecosystem, and therefore it is an important topic for many studies in the lagoon. This study focuses on the effects of seagrass beds on the hydrodynamics in the IRL. A hydrodynamic model based on the Delft3D modeling system has been developed for the southern IRL including the St. Lucie estuary, Ft. Pierce and St. Lucie Inlets, and adjacent coastal waters. The model is driven by freshwater inputs from the watershed, tides, meteorological forcing, and oceanic boundary forcing. The model has been systematically calibrated through a series of numerical experiments for key parameters, particularly the bottom roughness, and configuration including heat flux formulation and bottom bathymetry. The model skills were evaluated with quantitative metrics (point-to-point correlation, root-mean-square difference, and mean bias) to gauge the agreements between model and data for key variables including temperature, salinity, and currents. A three-year (2013-2015) simulation has been performed, and the results have been validated with available data including observations at HBOI Land-Ocean Biogeochemistry Observatory (LOBO) stations and in situ measurements from various sources. The validated model is then used to investigate the effects of 1) model vertical resolution (total number of model vertical layers), 2) spatial variability of surface winds, and 3) seagrass beds on the simulated hydrodynamics. The study focuses on the vicinity of Ft. Pierce Inlet, where significant seagrass coverage can be found. A series of numerical experiments were performed with a combination of different configurations. Overall, the experiment with 2-dimensional (2-D) winds, ten vertical layers and incorporating seagrass provided the most satisfactory outcomes. Overall, both vertical resolution and spatial variability of surface winds affect significantly the model results. In particular, increasing vertical resolution improves model prediction of temperature, salinity and currents. Similarly, the model with 2-D winds yields more realistic results than the model forced by 0-D winds. The seagrass beds have significant effects on the model results, particularly the tidal and sub-tidal currents. In general, model results show that both tidal and sub-tidal currents are much weaker due to increase bottom friction from seagrass. For tidal currents, the strongest impacts lie in the main channel (inter-coastal waterway) and western part of the lagoon, where strong tidal currents can be found. Inclusion of seagrass in the model also improves the simulation of sub-tidal currents. Seagrass beds also affect model temperature and salinity including strengthening vertical stratification. In general, seagrass effects vary over time, particularly tidal cycle with stronger effects seen in flood and ebb tides, and seasonal cycle with stronger effects in the summer than in winter.
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Date Issued
2016
PURL
http://purl.flvc.org/fau/fd/FA00004774, http://purl.flvc.org/fau/fd/FA00004774
Subject Headings
Turtle grass--Environmental aspects., Seagrasses--Ecology., Grassed waterways., Wave resistance (Hydrodynamics), Wetland ecology., Estuarine ecology., Estuarine restoration., Coastal zone management.
Format
Document (PDF)