Current Search:  Lagoons (x)

View All Items

  • CSV Spreadsheet
(81 - 100 of 145)

Pages

A generalized stochastic birth/death population model based on Indian RiverLagoon dolphins
Title
A generalized stochastic birth/death population model based on Indian RiverLagoon dolphins.
Creator
Stonger, Jon, Noonburg, Erik G., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
For over a decade, researchers at Harbor Branch Oceanographic Institute (HBOI) have conducted surveys of the bottlenose dolphin (Tursiops truncatus) population of Indian River Lagoon (IRL) in Florida. I have constructed a 4-stage population model using the statistical program R. The model is used to conduct a viability analysis by analyzing the relationship between birth, calf and adult survival rates. The power analysis compares survey frequency to expected confidence intervals in estimating...
Show moreFor over a decade, researchers at Harbor Branch Oceanographic Institute (HBOI) have conducted surveys of the bottlenose dolphin (Tursiops truncatus) population of Indian River Lagoon (IRL) in Florida. I have constructed a 4-stage population model using the statistical program R. The model is used to conduct a viability analysis by analyzing the relationship between birth, calf and adult survival rates. The power analysis compares survey frequency to expected confidence intervals in estimating abundance. The sensitivity analysis shows that the population is most sensitive to changes in adult survival, followed by birth rate and calf survival. The model shows a strong chance of viability over a 50 year time span. The population is vulnerable to long periods of decline if birth, calf or adult survival rates fall below certain thresholds. Overall, the model simulates the future impacts of demographic change, providing a tool for conservation efforts.
Show less
Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00004163, http://purl.flvc.org/fau/fd/FA00004163
Subject Headings
Animal populations -- Estimates, Bottlenose dolphin -- Florida -- Indian River Lagoon -- Geographical distribution, Indian River (Fla : Lagoon), Marine mammal populations -- Estimates -- Florida -- Mathematical models, Population biology, Stochastic processes
Format
Document (PDF)
Generating space-time hypotheses in complex social-ecological systems
Title
Generating space-time hypotheses in complex social-ecological systems.
Creator
Forbes, Dolores J., Xie, Zhixiao, Florida Atlantic University, Charles E. Schmidt College of Science, Department of Geosciences
Abstract/Description
As ecosystems degrade globally, ecosystem services that support life are increasingly threatened. Indications of degradation are occurring in the Northern Indian River Lagoon (IRL) estuary in east central Florida. Factors associated with ecosystem degradation are complex, including climate and land use change. Ecosystem research needs identified by the Millennium Ecosystem Assessment (MA) include the need to: consider the social with the physical; account for dynamism and change; account for...
Show moreAs ecosystems degrade globally, ecosystem services that support life are increasingly threatened. Indications of degradation are occurring in the Northern Indian River Lagoon (IRL) estuary in east central Florida. Factors associated with ecosystem degradation are complex, including climate and land use change. Ecosystem research needs identified by the Millennium Ecosystem Assessment (MA) include the need to: consider the social with the physical; account for dynamism and change; account for complexity; address issues of scale; and focus on ecosystem structure and process. Ecosystems are complex, self-organizing, multi-equilibrial, non-linear, middle-number systems that exist in multiple stable states. Results found are relative to the observation and the frame of analysis, requiring multi-scaled analytical techniques. This study addresses the identified ecosystem research needs and the complexity of the associated factors given these additional constraints. Relativity is addressed through univariate analysis of dissolved oxygen as a measure of the general health of the Northern IRL. Multiple spatial levels are employed to associate social process scales with physical process scales as basin, sub-basins, and watersheds. Scan statistics return extreme value clusters in space-time. Wavelet transforms decompose time-scales of cyclical data using varying window sizes to locate change in process scales in space over time. Wavelet transform comparative methods cluster temporal process scales across space. Combined these methods describe the space-time structure of process scales in a complex ecosystem relative to the variable examined, where the highly localized results allow for connection to unexamined variables.
Show less
Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00004284
Subject Headings
Environmental sciences -- Mathematical models, Indian River (Fla. : Lagoon) -- Environmental aspects, Marine ecosystem management -- Florida -- Indian River (Lagoon), Sustainable development, Wavelets (Mathematics)
Format
Document (PDF)
Population structure and dispersal of bottlenose dolphins (Tursiops truncatus) of the Indian River Lagoon Estuary, Florida, and adjacent Atlantic waters
Title
Population structure and dispersal of bottlenose dolphins (Tursiops truncatus) of the Indian River Lagoon Estuary, Florida, and adjacent Atlantic waters.
Creator
Rodgers, Sarah E., Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
Worldwide research of bottlenose dolphins (Tursiops truncatus) has led to varied definitions and terminology regarding ways to group dolphins for study and management. An understanding of the demographic history and population structure of bottlenose dolphins residing within the Indian River Lagoon Estuary System (IRLES), Florida, is needed to help define the IRLES dolphin population: ecotype, population, or community. Using mitochondrial DNA sequencing and microsatellite genotyping, this...
Show moreWorldwide research of bottlenose dolphins (Tursiops truncatus) has led to varied definitions and terminology regarding ways to group dolphins for study and management. An understanding of the demographic history and population structure of bottlenose dolphins residing within the Indian River Lagoon Estuary System (IRLES), Florida, is needed to help define the IRLES dolphin population: ecotype, population, or community. Using mitochondrial DNA sequencing and microsatellite genotyping, this study detected: (1) genetic differentiation between estuarine and coastal individuals (FstmtDNA=0.414, Fstmsat=0.057; p<0.05; K=2), (2) genetic differentiation between the Indian River Lagoon (IRL) and Mosquito Lagoon (ML) (FstmtDNA=0.0201, Fstmsat=0.0234; p<0.09), and (3) minute undefined sub-structure within the IRLES (FstmtDNA=-0.00 -0.0379, Fstmsat=0.00 - vii 0.0445; p>0.1). Additionally, within ML this study detected non-mixing cohabitation of two potential ecotypes, estuarine and coastal. These findings raise many questions regarding how dolphins are presently categorized and managed which are critical to population assessments including abundance, vital rates, and health.
Show less
Date Issued
2013
PURL
http://purl.flvc.org/fcla/dt/3362568
Subject Headings
Biogeography, Bottlenose dolphin, Behavior, Bottlenose dolphin, Geographical distribution, Bottlenose dolphin
Format
Document (PDF)
The Ascidian Styela plicata As a Potential Bioremediator of the Brown Tide Pelagophytes Aureoumbra lagunensis and Aureococcus anophagefferens
Title
The Ascidian Styela plicata As a Potential Bioremediator of the Brown Tide Pelagophytes Aureoumbra lagunensis and Aureococcus anophagefferens.
Creator
Klarmann, Phyllis A., Hartmann, James X., Florida Atlantic University, Charles E. Schmidt College of Science, Department of Biological Sciences
Abstract/Description
A brown tide bloom of the pelagophyte Aureoumbra lagunensis caused significant impacts to north Indian River Lagoon (IRL) in 2012-2013, including seagrass die-offs, fish kills, and reduced growth and grazing of ecologically important bivalves. There is potential for another pelagophyte, Aureococcus anophagefferens, to expand into this system. Filtration rates (FR) of the pleated tunicate Styela plicata exposed to Aureoumbra lagunensis and Aureococcus anophagefferens were measured against...
Show moreA brown tide bloom of the pelagophyte Aureoumbra lagunensis caused significant impacts to north Indian River Lagoon (IRL) in 2012-2013, including seagrass die-offs, fish kills, and reduced growth and grazing of ecologically important bivalves. There is potential for another pelagophyte, Aureococcus anophagefferens, to expand into this system. Filtration rates (FR) of the pleated tunicate Styela plicata exposed to Aureoumbra lagunensis and Aureococcus anophagefferens were measured against exposure to a control alga (Tisochrysis lutea) in order to determine its potential use as a bioremediator against these harmful algal blooms (HABs). In addition, whether S. plicata might serve as a vector of HABs was studied by culturing fecal deposits. Short-term exposure to HABs significantly reduced FR, whereas long-term exposure indicates comparable cell removal compared to the control. Vector potential of S. plicata was inconclusive. Results warrant further research to determine whether S. plicata can acclimate or respond to HAB conditions over time.
Show less
Date Issued
2015
PURL
http://purl.flvc.org/fau/fd/FA00004513
Subject Headings
Algal blooms -- Florida -- Indian River Lagoon, Cyanobacterial blooms -- Toxicology, Estuarine ecology, Indian River Lagoon (Fla.) -- Environmental aspects, Marine bioremediation, Marine ecology, Marine pollution, Water quality biological assessment
Format
Document (PDF)
Productivity of Microcoleus lyngbyaceus (Cyanophyceae; Oscillatoriaceae) in various light and temperature conditions
Title
Productivity of Microcoleus lyngbyaceus (Cyanophyceae; Oscillatoriaceae) in various light and temperature conditions.
Creator
Blair, Stephen M., Meyer, M. C., Harbor Branch Oceanographic Institute
Date Issued
1986
PURL
http://purl.flvc.org/fau/fd/FA00007022
Subject Headings
Indian River (Fla. : Lagoon), Microcoleus, Cyanophyceae, Oscillatoriaceae, Blue-green algae
Format
Document (PDF)
Fishes of the Indian River Lagoon and adjacent waters, Florida
Title
Fishes of the Indian River Lagoon and adjacent waters, Florida.
Creator
Gilmore, R. G., Harbor Branch Oceanographic Institute
Date Issued
1977
PURL
http://purl.flvc.org/FCLA/DT/3343787
Subject Headings
Fishes--Florida--Indian River (Lagoon), Fishes--Florida--Indian River, Fishes--Florida
Format
Document (PDF)
Effects of density and predatorexclusion device on growth and survivorship of hard clam Mercenaria mercenaria in the Indian RiverLagoon, Florida (Master’s thesis)
Title
Effects of density and predatorexclusion device on growth and survivorship of hard clam Mercenaria mercenaria in the Indian RiverLagoon, Florida (Master’s thesis).
Creator
Fernandez, Eva M., Harbor Branch Oceanographic Institute
Date Issued
1997
PURL
http://purl.flvc.org/fau/fd/FA00007389
Subject Headings
Indian River (Fla. : Lagoon), Northern quahog, Mercenaria mercenaria, Northern quahog--Growth
Format
Document (PDF)
Introduction
Title
Introduction.
Creator
Swain, Hilary M., Breininger, David R., Busby, Derek S., Clark, Kerry B., Cook, Susan B., Day, Robert A., De Freese, Duane E., Gilmore, R. G., Hart, Amy W., Hinkle, C. Ross, McArdle, Deborah A., Mikkelsen, Paula M., Nelson, Walter G., Zahorcak, Alyssa J., Harbor Branch Oceanographic Institute
Date Issued
1995
PURL
http://purl.flvc.org/FCLA/DT/3172867
Subject Headings
Biodiversity, Indian River (Fla.: Lagoon), Biodiversity conservation, Biotic communities, Birds, Wildlife conservation
Format
Document (PDF)
Analysis of soundproduction in estuarine aggregations of Pogonias Cromis, Bairdiella Chrysoura, and CynoscionNebulosos (Sciaenidae)
Title
Analysis of soundproduction in estuarine aggregations of Pogonias Cromis, Bairdiella Chrysoura, and CynoscionNebulosos (Sciaenidae).
Creator
Mok, Hin-Kiu, Gilmore, R. G., Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/fau/fd/FA00007327
Subject Headings
Indian River (Fla. : Lagoon), Pogonias cromis, Spotted seatrout, Silver perch, Fish sounds
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)
The analysis of cadmium, chromium, copper, iron, lead, and manganese in estuarine waters
Title
The analysis of cadmium, chromium, copper, iron, lead, and manganese in estuarine waters.
Creator
Hucks, Michael W., Peterson, Gary N., Montgomery, John R.
PURL
http://purl.flvc.org/fcla/dt/3358618
Subject Headings
Estuaries, Indian River (Fla. : Lagoon), Saline waters--Analysis, Heavy metals--Analysis
Format
Document (PDF)
Removal of suspended particles by fouling communities
Title
Removal of suspended particles by fouling communities.
Creator
Mook, David H., Harbor Branch Oceanographic Institute
Date Issued
1981
PURL
http://purl.flvc.org/FCLA/DT/3350841
Subject Headings
Suspended sediments, Fouling, Fouling --Congresses, Microencapsulation, Suspension feeders --Ecology --Congresses, Sessile barnacles, Indian River (Fla.: Lagoon)
Format
Document (PDF)
A computerized database fora natural history collection
Title
A computerized database fora natural history collection.
Creator
Mikkelsen, Paula M., Harbor Branch Oceanographic Institute
Date Issued
1986
PURL
http://purl.flvc.org/fau/fd/FA00007292
Subject Headings
Natural history--Catalogs and collections, Harbor Branch Oceanographic Institution, Indian River (Fla. : Lagoon)
Format
Document (PDF)
Ichthyofaunal additions to the Indian River Lagoon and adjacent waters, east-central Florida
Title
Ichthyofaunal additions to the Indian River Lagoon and adjacent waters, east-central Florida.
Creator
Gilmore, R. G., Hastings, P. A., Herrema, David J., Harbor Branch Oceanographic Institute
Date Issued
1983
PURL
http://purl.flvc.org/fau/fd/FA00007471
Subject Headings
East Florida, Fishes--Florida--Indian River (Lagoon), Fishes--Florida, Fish surveys
Format
Document (PDF)
Lobomycosis in Atlantic bottlenose dolphinsfrom the Indian River Lagoon, Florida
Title
Lobomycosis in Atlantic bottlenose dolphinsfrom the Indian River Lagoon, Florida.
Creator
Reif, John S., Mazzoil, Marilyn S., McCulloch, Stephen D., Varela, Rene A., Goldstein, Juli D., Fair, Patricia A., Bossart, Gregory D.
Date Issued
2006
PURL
http://purl.flvc.org/fau/fd/FA00007280
Subject Headings
Bottlenose dolphin--Atlantic Coast (U.S.), Indian River (Fla. : Lagoon), Lobomycosis
Format
Document (PDF)
Perception and choice of substratum by epifaunal amphipods associated with seagrasses
Title
Perception and choice of substratum by epifaunal amphipods associated with seagrasses.
Creator
Stoner, Allan W., Harbor Branch Oceanographic Institute
Date Issued
1980
PURL
http://purl.flvc.org/FCLA/DT/3350838
Subject Headings
Amphipoda, Seagrasses, Biomass, Lagodon rhomboids, Predation (Biology), Indian River (Fla.: Lagoon)
Format
Document (PDF)
Measurements of short-term turnover of epifauna within seagrass beds using an in situ staining method
Title
Measurements of short-term turnover of epifauna within seagrass beds using an in situ staining method.
Creator
Howard, Robert K., Harbor Branch Oceanographic Institute
Date Issued
1985
PURL
http://purl.flvc.org/FCLA/DT/3350850
Subject Headings
Seagrasses, Benthic animals, Staining and stains (Microscopy), Crustaceans, Indian River (Fla.: Lagoon)
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)
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)
Residues of polychlorinated biphenyls and DDT in water and sediment of the Indian River Lagoon, Florida—1977-1978
Title
Residues of polychlorinated biphenyls and DDT in water and sediment of the Indian River Lagoon, Florida—1977-1978.
Creator
Wang, Tsen C., Johnson, R. S., Bricker, J. L., Harbor Branch Oceanographic Institute
Date Issued
1980
PURL
http://purl.flvc.org/FCLA/DT/3352187
Subject Headings
Indian River (Fla. : Lagoon), DDT (Insecticide), Polychlorinated biphenyls, River sediments, Water quality
Format
Document (PDF)

Pages