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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
Land-based nutrient enrichment of the Buccoo Reef Complex and fringing coral reefs of Tobago, West Indies
Title
Land-based nutrient enrichment of the Buccoo Reef Complex and fringing coral reefs of Tobago, West Indies.
Creator
Lapointe, Brian E., Langton, Richard, Bedford, Bradley J., Potts, Arthur C., Day, Owen, Hu, Chuanmin
Date Issued
2010-03
PURL
http://purl.flvc.org/FCLA/DT/1429256
Subject Headings
Coral reef ecology --West Indies, Coral reef ecology --Research, Eutrophication, Marine pollution
Format
Document (PDF)
Phytoplankton response to intrusions of slope water on the West Florida Shelf: Models and observations
Title
Phytoplankton response to intrusions of slope water on the West Florida Shelf: Models and observations.
Creator
Walsh, John J., Weisberg, Robert H., Dieterle, Dwight A., He, Ruoying, Darrow, Brian P., Jolliff, Jason K., Lester, Kristen M., Vargo, Gabriel A., Kirkpatrick, Gary J., Fanning, Kent A., Sutton, Tracey T., Jochens, Ann E., Biggs, Douglas C., Nababan, Bisman, Hu, Chuanmin, Muller-Karger, Frank E., Harbor Branch Oceanographic Institute
Date Issued
2003
PURL
http://purl.flvc.org/FCLA/DT/3172985
Subject Headings
Phytoplankton, Red tide --Florida, Diatoms, Upwelling (Oceanography)
Format
Document (PDF)