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Effects of Land Use on Nitrogen and Phosphorus Inputs to the Indian River Lagoon
Title
Effects of Land Use on Nitrogen and Phosphorus Inputs to the Indian River Lagoon.
Creator
Lynch, Katelyn, Lapointe, Brian E., Graduate College
Abstract/Description
Urban and residential land uses in the Indian River Lagoon IRL watershed contribute sewage and fertilizers to stormwater runoff, resulting in increased nitrogen N and phosphorous P loadings that can fuel harmful algal blooms. The goal of this project is to quantify dissolved concentrations of ammonium, nitrate and soluble reactive P in storm water from agricultural, natural, and urban land uses adjacent to seven of the canals and tributaries within the IRL watershed. Preliminary results based...
Show moreUrban and residential land uses in the Indian River Lagoon IRL watershed contribute sewage and fertilizers to stormwater runoff, resulting in increased nitrogen N and phosphorous P loadings that can fuel harmful algal blooms. The goal of this project is to quantify dissolved concentrations of ammonium, nitrate and soluble reactive P in storm water from agricultural, natural, and urban land uses adjacent to seven of the canals and tributaries within the IRL watershed. Preliminary results based on water samples taken at the beginning, middle and end of storm events at 10 sample points suggest initial spikes of soluble reactive P, nitrate and ammonia in storm water runoff. These results represent the first attempt to characterize nutrient concentrations of stormwater among various tributaries and land uses on the IRL.
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Date Issued
2014
PURL
http://purl.flvc.org/fau/fd/FA00005835
Format
Document (PDF)
Satellite-Observed Black Water Events off Southwest Florida: Implications for Coral Reef Health in the Florida Keys National Marine Sanctuary
Title
Satellite-Observed Black Water Events off Southwest Florida: Implications for Coral Reef Health in the Florida Keys National Marine Sanctuary.
Creator
Zhao, Jun, Hu, Chuanmin, Lapointe, Brian E., Melo, Nelson, Johns, Elizabeth, Smith, Ryan
Abstract/Description
A “black water” event, as observed from satellites, occurred off southwest Florida in 2012. Satellite observations suggested that the event started in early January and ended in mid-April 2012. The black water patch formed off central west Florida and advected southward towards Florida Bay and the Florida Keys with the shelf circulation, which was confirmed by satellite-tracked surface drifter trajectories. Compared with a previous black water event in 2002, the 2012 event was weaker in terms...
Show moreA “black water” event, as observed from satellites, occurred off southwest Florida in 2012. Satellite observations suggested that the event started in early January and ended in mid-April 2012. The black water patch formed off central west Florida and advected southward towards Florida Bay and the Florida Keys with the shelf circulation, which was confirmed by satellite-tracked surface drifter trajectories. Compared with a previous black water event in 2002, the 2012 event was weaker in terms of spatial and temporal coverage. An in situ survey indicated that the 2012 black water patch contained toxic K. brevis and had relatively low CDOM (colored dissolved organic matter) and turbidity but high chlorophyll-a concentrations, while salinity was somewhat high compared with historical values. Further analysis revealed that the 2012 black water was formed by the K. brevis bloom initiated off central west Florida in late September 2011, while river runoff, Trichodesmium and possibly submarine groundwater discharge also played important roles in its formation. Black water patches can affect benthic coral reef communities by decreasing light availability at the bottom, and enhanced nutrient concentrations from black water patches support massive macroalgae growth that can overgrow coral reefs. It is thus important to continue the integrated observations where satellites provide synoptic and repeated observations of such adverse water quality events.
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Date Issued
2013-01-18
PURL
http://purl.flvc.org/fau/fd/FAUIR000032
Format
Citation
Stormwater nutrient inputs favor growth of non‐native macroalgae(Rhodophyta) on O’ahu, Hawaiian Islands
Title
Stormwater nutrient inputs favor growth of non‐native macroalgae(Rhodophyta) on O’ahu, Hawaiian Islands.
Creator
Lapointe, Brian E., Bedford, Bradley J.
Date Issued
2011
PURL
http://purl.flvc.org/fau/fd/FA00007462
Subject Headings
Oahu (Hawaii), Red algae, Rhodophyta, Limu, Runoff, Nitrogen, Phosphorus
Format
Document (PDF)
Cultivation of seaweeds forhydrocolloids, waste treatment and biomass for energy conversion.
Title
Cultivation of seaweeds forhydrocolloids, waste treatment and biomass for energy conversion.
Creator
Ryther, John H., DeBoer, James A., Lapointe, Brian E.
Date Issued
1979
PURL
http://purl.flvc.org/fau/fd/FA00007429
Subject Headings
Biomass, Hydrocolloids, Sewage--Purification, Gracilaria, Marine algae culture
Format
Document (PDF)
Biotic phase-shifts in Florida Bayand fore reef communities of the Florida Keys: linkages with historical freshwater flows and nitrogenloading from Everglades runoff
Title
Biotic phase-shifts in Florida Bayand fore reef communities of the Florida Keys: linkages with historical freshwater flows and nitrogenloading from Everglades runoff.
Creator
Lapointe, Brian E., Matzie, William R., Barile, Peter J.
Date Issued
2002
PURL
http://purl.flvc.org/fau/fd/FA00007397
Subject Headings
Florida Bay (Fla.), Florida Keys (Fla.), Reefs--Florida, Eutrophication, Coastal ecology, Everglades (Fla.)
Format
Document (PDF)
Eutrophication thresholds formacroalgal overgrowth of coral reefs
Title
Eutrophication thresholds formacroalgal overgrowth of coral reefs.
Creator
Lapointe, Brian E.
Date Issued
1994
PURL
http://purl.flvc.org/fau/fd/FA00007382
Subject Headings
Negril (Jamaica), Eutrophication, Marine eutrophication, Coral reefs, Microalgae
Format
Document (PDF)
Nutrient over-enrichment ofSouth Florida’s coral reefs: how science and management failed to protect a national treasure
Title
Nutrient over-enrichment ofSouth Florida’s coral reefs: how science and management failed to protect a national treasure.
Creator
Lapointe, Brian E.
Date Issued
2001
PURL
http://purl.flvc.org/fau/fd/FA00007356
Subject Headings
Coral reef ecology--Florida--Florida Keys, Eutrophication
Format
Document (PDF)
Coral reef destruction
Title
Coral reef destruction.
Creator
Lapointe, Brian E.
Date Issued
2000
PURL
http://purl.flvc.org/fau/fd/FA00007316
Subject Headings
Coral reef ecology, Coral declines, Nutrient pollution of water
Format
Document (PDF)
Estuaries in distress
Title
Estuaries in distress.
Creator
Barile, Peter J., Lapointe, Brian E.
Date Issued
1999
PURL
http://purl.flvc.org/fau/fd/FA00007317
Subject Headings
Estuaries, Hydrogen sulfide, Algae, Indian River (Fla. : Lagoon)
Format
Document (PDF)
Reevaluation of ENCORE: support for the eutrophication threshold model for coral reefs
Title
Reevaluation of ENCORE: support for the eutrophication threshold model for coral reefs.
Creator
Bell, P. R. F., Lapointe, Brian E., Elmetri, I.
Date Issued
2007
PURL
http://purl.flvc.org/fau/fd/FA00007321
Subject Headings
One Tree Island (Qld.), Coral reefs and islands, Eutrophication
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)
Modification of tropical reef community structure due to cultural eutrophication: the southwest coastof Martinique
Title
Modification of tropical reef community structure due to cultural eutrophication: the southwest coastof Martinique.
Creator
Littler, Mark M., Littler, Diane S., Lapointe, Brian E.
Date Issued
1993
PURL
http://purl.flvc.org/fau/fd/FA00007094
Subject Headings
Martinique, Eutrophication, Reef ecology, Microalgae
Format
Document (PDF)
The tobacco range fracture zone: a unique system of slumped mangrove peat
Title
The tobacco range fracture zone: a unique system of slumped mangrove peat.
Creator
Littler, Mark M., Littler, Diane S., MacIntyre, I. G., Brooks, Barrett L., Taylor, P. R., Lapointe, Brian E.
Date Issued
1995
PURL
http://purl.flvc.org/fau/fd/FA00007098
Subject Headings
Belize, Mangrove, Peat, Thalassia testudinum
Format
Document (PDF)
Macroalgal overgrowth of fringing coral reefs at Discovery Bay, Jamaica: bottom-up versus top-down control
Title
Macroalgal overgrowth of fringing coral reefs at Discovery Bay, Jamaica: bottom-up versus top-down control.
Creator
Lapointe, Brian E., Littler, Mark M., Littler, Diane S.
Date Issued
1997
PURL
http://purl.flvc.org/fau/fd/FA00007034
Subject Headings
Jamaica, Coral reefs and islands, Algal communities, Eutrophication, Algae--Control
Format
Document (PDF)
The effects of nitrogen and seawater flow rate on the growth and biochemical composition of Gracilaria foliifera var. angustissima in mass outdoor cultures
Title
The effects of nitrogen and seawater flow rate on the growth and biochemical composition of Gracilaria foliifera var. angustissima in mass outdoor cultures.
Creator
Lapointe, Brian E., Ryther, John H.
Date Issued
1979
PURL
http://purl.flvc.org/fau/fd/FA00007004
Subject Headings
Gracilaria, Nitrogen, Seawater, Growth, Biochemistry, Algae culture
Format
Document (PDF)
Modification of benthic community structure by natural eutrophication: the Belize barrier reef.
Title
Modification of benthic community structure by natural eutrophication: the Belize barrier reef.
Creator
Lapointe, Brian E., Littler, Mark M., Littler, Diane S.
Date Issued
1993
PURL
http://purl.flvc.org/fau/fd/FA00007030
Subject Headings
Coral reefs and islands--Belize, Eutrophication, Benthos
Format
Document (PDF)
A comparison of nutrient-limited productivity in macroalgae from a Caribbean barrier reef and from a mangrove ecosystem
Title
A comparison of nutrient-limited productivity in macroalgae from a Caribbean barrier reef and from a mangrove ecosystem.
Creator
Lapointe, Brian E., Littler, Mark M., Littler, Diane S., Harbor Branch Oceanographic Institute
Date Issued
1987
PURL
http://purl.flvc.org/FCLA/DT/3353785
Subject Headings
Algae, Carrie Bow Cay (Belize), Mangrove ecology, Algal communities, Nutrients in ecosystems
Format
Document (PDF)
Alternative production systems: marine crops
Title
Alternative production systems: marine crops.
Creator
Bird, Kimon T., Lapointe, Brian E., Hanisak, M. Dennis, Ryther, John H., Dawes, Clinton J.
Date Issued
1988
PURL
http://purl.flvc.org/FCLA/DT/3353780
Subject Headings
Crops, Biomass, Marine algae culture, Gracilaria, Mariculture
Format
Document (PDF)
Phosphorus-limited photosynthesis and growth of Sargassum natans and Sargassum fluitans (Phaeophyceae) in the western North Atlantic
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)
Strategies for pulsed nutrient supply to Gracilaria cultures in the Florida Keys: interactions between concentration and frequency of nutrient pulses
Title
Strategies for pulsed nutrient supply to Gracilaria cultures in the Florida Keys: interactions between concentration and frequency of nutrient pulses.
Creator
Lapointe, Brian E.
Date Issued
1985
PURL
http://purl.flvc.org/FCLA/DT/3353768
Subject Headings
Gracilaria, Cage aquaculture, Growth, Carbon, Nitrogen, Phosphorus
Format
Document (PDF)

Pages