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Sediment in seagrasses near Link Port,Indian River, Florida.
Title
Sediment in seagrasses near Link Port,Indian River, Florida.
Creator
Hoskin, Charles M., Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/fau/fd/FA00007482
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Sediment
Format
Document (PDF)
Species composition and distribution of seagrass beds in the Indian River Lagoon, Florida
Title
Species composition and distribution of seagrass beds in the Indian River Lagoon, Florida.
Creator
Thompson, M. John, Harbor Branch Oceanographic Institute
Date Issued
1978
PURL
http://purl.flvc.org/FCLA/DT/3177057
Subject Headings
Seagrasses--Florida--Indian River (Lagoon)
Format
Document (PDF)
Seasonality and spatial patterns of the seagrass-associated amphipods of the Indian River Lagoon, Florida
Title
Seasonality and spatial patterns of the seagrass-associated amphipods of the Indian River Lagoon, Florida.
Creator
Nelson, Walter G., Cairns, Kalani D., Virnstein, Robert W., Harbor Branch Oceanographic Institute
Date Issued
1982
PURL
http://purl.flvc.org/FCLA/DT/3174447
Subject Headings
Amphipoda, Seagrasses--Florida--Indian River (Lagoon)
Format
Document (PDF)
Leaf growth in the seagrass Syringodium filiforme Kütz
Title
Leaf growth in the seagrass Syringodium filiforme Kütz.
Creator
Fry, B., Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/FCLA/DT/3331848
Subject Headings
Seagrasses, Leaves--Growth, Seagrasses--Florida--Indian River (Lagoon)
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)
Examination of the Use of Floating Individuals of Halodule wrightii (Ascherson, 1868) for Restoration
Title
Examination of the Use of Floating Individuals of Halodule wrightii (Ascherson, 1868) for Restoration.
Creator
Berninger, Jacob J., Hanisak, M. Dennis, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
The goal of this study was to develop an alternative approach to typical seagrass transplantation techniques that damage the donor bed. Floating individuals of Halodule wrightii were collected in the Indian River Lagoon (IRL), Florida, during fall of 2013 and spring of 2014, with the fall collection planted in outdoor tanks. Only 25% of individuals collected in the fall survived the winter in the tanks. Individuals from both collections were deployed onto biodegradable mats in a capped dredge...
Show moreThe goal of this study was to develop an alternative approach to typical seagrass transplantation techniques that damage the donor bed. Floating individuals of Halodule wrightii were collected in the Indian River Lagoon (IRL), Florida, during fall of 2013 and spring of 2014, with the fall collection planted in outdoor tanks. Only 25% of individuals collected in the fall survived the winter in the tanks. Individuals from both collections were deployed onto biodegradable mats in a capped dredge hole in the IRL in March, 2014. Approximately 66% of the mats survived the six-month experiment, and the area covered by seagrass quadrupled. Growth in shoot count, average height, horizontal spread, and biomass was similar for both fall and spring treatments. Thus, time and effort of overwintering had no benefit over spring harvesting. The use of floating individuals can provide a more practical, environmentally friendly alternative to traditional transplanting for seagrass re storation.
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Date Issued
2015
PURL
http://purl.flvc.org/fau/fd/FA00004482, http://purl.flvc.org/fau/fd/FA00004482
Subject Headings
Indian River (Fla. : Lagoon) -- Environmental conditions, Restoration ecology -- Florida -- Indian River (Lagoon), Seagrass restoration -- Florida -- Indian River (Lagoon), Seagrasses -- Conservation -- Florida -- Indian River (Lagoon)
Format
Document (PDF)
The Role Of Disturbance In The Genotypic And Morphological Diversity Of Halodule Wrightii
Title
The Role Of Disturbance In The Genotypic And Morphological Diversity Of Halodule Wrightii.
Creator
Tiling, Kathryn A., Proffitt, C. Edward, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
Seagrasses are important foundation species in coastal ecosystems. Genetic diversity of seagrasses can influence a number of ecological factors including, but not limited to, disturbance resistance and resilience. Seagrasses in the Indian River Lagoon (IRL), Florida are considered to be highly disturbed due to frequent events, like algal blooms, that impair water quality, reducing available light for seagrass growth. Halodule wrightii is a dominant seagrass throughout the IRL, but its genetic...
Show moreSeagrasses are important foundation species in coastal ecosystems. Genetic diversity of seagrasses can influence a number of ecological factors including, but not limited to, disturbance resistance and resilience. Seagrasses in the Indian River Lagoon (IRL), Florida are considered to be highly disturbed due to frequent events, like algal blooms, that impair water quality, reducing available light for seagrass growth. Halodule wrightii is a dominant seagrass throughout the IRL, but its genetic diversity has only been quantified in a few Gulf of Mexico and Florida Bay populations and little is known about its potential ecological consequences. I quantified the genetic variation of H. wrightii using microsatellite markers in the southern IRL to determine: (i) how disturbance history influenced genetic diversity, (ii) if morphology of clones was, in part, genetically controlled and related to disturbance history, and (iii) if genotypes showed phenotypic plasticity in response to disturbances. In the IRL, H. wrightii populations exhibited moderate genetic diversity that varied with disturbance history. The disturbance history of a population was classified by the variance in the percent occurrence of H. wrightii over a 16-year period. Genotypic richness and clonal diversity of H. wrightii increased with increasing disturbance histories. Other genetic diversity measures (e.g., allelic richness, observed heterozygosity) did not change with disturbance history. These findings suggest that impacts to seagrass coverage over time can change the genotypic composition of populations. When different genotypes of H. wrightii were grown in a common garden, differences in leaf characteristics among genotypes provided evidence that morphological trait variation is, in part, explained by genetic variance. The disturbance history of genotypes did not directly affect morphological traits. However, significant genotype x site (within disturbance history) interactions found greater variation in shoot density and below ground traits of H. wrightii genotypes from sites of intermediate disturbance history. Traits of H. wrightii were shown to be phenotypically plastic. Significant genotype x environment interactions for shoot density and height demonstrated that genotypes responded differently by increasing, decreasing, and not changing sizes in response to light reduction. Genetic diversity of H. wrightii has strong implications for ecological function in coastal communities.
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Date Issued
2016
PURL
http://purl.flvc.org/fau/fd/FA00004661, http://purl.flvc.org/fau/fd/FA00004661
Subject Headings
Indian River (Fla. : Lagoon) -- Enviornmental conditions, Indian River Lagoon National Estuary Program (Fla.), Marine ecology -- Florida -- Indian River (Lagoon), Restoration ecology, Seagrasses -- Florida -- Indian River (Lagoon), Seagrasses -- Physiology
Format
Document (PDF)
A comparison of primary production rates in Indian River, Florida seagrass systems
Title
A comparison of primary production rates in Indian River, Florida seagrass systems.
Creator
Heffernan, John J., Gibson, R. A., Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/fau/fd/FA00007477
Subject Headings
Indian River (Fla. : Lagoon), Primary productivity (Biology), Seagrasses--Florida--Indian River (Lagoon)
Format
Document (PDF)
Evaluating the Feasibility of Transplanting to Promote Seagrass Recovery in the Indian River Lagoon. Final Report for Contract No. 24676. Submitted to St. Johns River Water Management District.
Title
Evaluating the Feasibility of Transplanting to Promote Seagrass Recovery in the Indian River Lagoon. Final Report for Contract No. 24676. Submitted to St. Johns River Water Management District.
Creator
Hanisak, M. Dennis, Virnstein, Robert W., Harbor Branch Oceanographic Institute
Date Issued
2015.0
PURL
http://purl.flvc.org/fau/fd/FA00007522
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Seagrass restoration, Transplanting (Plant culture)
Format
Document (PDF)
Seagrass growth and survivorship under the influence of epiphyte grazers
Title
Seagrass growth and survivorship under the influence of epiphyte grazers.
Creator
Howard, Robert K., Short, F. T., Harbor Branch Oceanographic Institute
Date Issued
1986
PURL
http://purl.flvc.org/FCLA/DT/3353772
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Epiphytes, Grazing, Growth, Seagrasses, Survival
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)
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)
Seagrass beds versus sand bottoms: the trophic importance of their associated benthic invertebrates.
Title
Seagrass beds versus sand bottoms: the trophic importance of their associated benthic invertebrates.
Creator
Virnstein, Robert W., Mikkelsen, Paul S., Cairns, Kalani D., Capone, Mary Ann, Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/fau/fd/FA00007480
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Meiofauna, Aquatic invertebrates., Food chains (Ecology)
Format
Document (PDF)
Diel variation in the abundance of epifauna associated with seagrasses of the Indian River, Florida, USA
Title
Diel variation in the abundance of epifauna associated with seagrasses of the Indian River, Florida, USA.
Creator
Howard, Robert K., Harbor Branch Oceanographic Institute
Date Issued
1987
PURL
http://purl.flvc.org/FCLA/DT/3333098
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Diel cycles, Benthic animals, Circadian rhythms
Format
Document (PDF)
Leaf growth rate of the seagrass Halodule Wrightii photographically measured in situ
Title
Leaf growth rate of the seagrass Halodule Wrightii photographically measured in situ.
Creator
Virnstein, Robert W., Harbor Branch Oceanographic Institute
Date Issued
1982
PURL
http://purl.flvc.org/FCLA/DT/3331831
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Leaves--Growth, Photographic measurements, Photogrammetry
Format
Document (PDF)
An illustrated guide to the sea grasses of the Indian River region of Florida
Title
An illustrated guide to the sea grasses of the Indian River region of Florida.
Creator
Eiseman, N. J.
Date Issued
1980
PURL
http://purl.flvc.org/fcla/dt/3358738
Subject Headings
Seagrasses--Florida--Indian River (Lagoon), Halophila, Species, Cymodoceaceae, Illustrated guides
Format
Document (PDF)