Anatomy of a red tide bloom off the southwest coast of Florida

Yentsch, Charles S.; Lapointe, Brian E.; Poulton, Nicole; Phinney, David A.

doi:10.1016/j.hal.2008.04.008

Cited by 39 publications

(22 citation statements)

References 51 publications

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“…Therefore, we hypothesize that the 2012 black water patch in the Florida Bight was formed from the red tide bloom that originated earlier off central West Florida and was advected and concentrated by the coastal ocean circulation. Results from in situ water samples collected on 1 and 2 March 2012 revealed that the black water in Florida Bight contained K. brevis ranging from 333 to 88,000 cells·L −1 (Figure 3(i)), which can cause discolored water [18] and supported our hypothesis. The patch also contained abundant non-toxic Rhizosoliniaceae diatom.…”

Section: Causes Of the 2012 Black Water Eventsupporting

confidence: 76%

“…Indeed, the linkage between river discharge and algal blooms has been widely recognized in the scientific community. As the river discharge carries "new" nutrients to the coastal ocean, which may add fuel to support and maintain the growth of phytoplankton, the role of river discharge for maintaining the black water and red tide events cannot be ignored [18]. Figure 1).…”

Section: Causes Of the 2012 Black Water Eventmentioning

confidence: 99%

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Satellite-Observed Black Water Events off Southwest Florida: Implications for Coral Reef Health in the Florida Keys National Marine Sanctuary

Zhao

Lapointe

et al. 2013

Remote Sensing

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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 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 OPEN ACCESSRemote Sens. 2013, 5 416 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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Section: Causes Of the 2012 Black Water Eventsupporting

confidence: 76%

Section: Causes Of the 2012 Black Water Eventmentioning

confidence: 99%

Satellite-Observed Black Water Events off Southwest Florida: Implications for Coral Reef Health in the Florida Keys National Marine Sanctuary

Zhao

Lapointe

et al. 2013

Remote Sensing

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“…A 532 6 10 nm filter (Omega Optical, Inc., Brattleboro, VT) was used for light scatter detection. As suggested in the literature, 14,15 we defined the fluorescence emission windows in the orange and red regions of the spectrum to quantify intrinsic fluorescence of phycoerythrin and chlorophyll, respectively. For convenience, we refer to the fluorescence signals in the above-mentioned windows as phycoerythrin and chlorophyll, respectively, although other chromophores could also contribute to the signal.…”

Section: A Microfluidic Designmentioning

confidence: 99%

“…Pseudo-Nitzchia is a pennate diatom which is enclosed in frustules made of two valves fitted together by a girdle. 15,16,19 All algae were analyzed without fixation.…”

Section: Marine Phytoplanktonmentioning

confidence: 99%

Optofluidic characterization of marine algae using a microflow cytometer

et al. 2011

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The effects of global warming, pollution in river effluents, and changing ocean currents can be studied by characterizing variations in phytoplankton populations. We demonstrate the design and fabrication of a Microflow Cytometer for characterization of phytoplankton. Guided by chevron-shaped grooves on the top and bottom of a microfluidic channel, two symmetric sheath streams wrap around a central sample stream and hydrodynamically focus it in the center of the channel. The lasers are carefully chosen to provide excitation light close to the maximum absorbance wavelengths for the intrinsic fluorophores chlorophyll and phycoerythrin, and the excitation light is coupled to the flow cytometer through the use of an optical fiber. Fluorescence and light scatter are collected using two multimode optical fibers placed at 90-degree angles with respect to the excitation fiber. Light emerging from these collection fibers is directed through optical bandpass filters into photomultiplier tubes. The cytometer measured the optical and side scatter properties of Karenia b., Synechococcus sp., Pseudo-Nitzchia, and Alexandrium. The effect of the sheath-tosample flow-rate ratio on the light scatter and fluorescence of these marine microorganisms was investigated. Reducing the sample flow rate from 200 lL/min to 10 lL/min produced a more tightly focused sample stream and less heterogeneous signals.

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“…These algal blooms along the SLE are implicated in both ecological and human health risks (Williams et al, 2007), including a decrease in fish and oyster species (Sime, 2005), which threatens both commercial and sport fisheries. In the case of the Caloosahatchee estuary, recorded red tides blooms in the southwestern coast of Florida result in massive fish kills, the development of hypoxic zones, and the mortality of manatees, sea turtles, and birds (Yentsch et al, 2008).…”

Section: Ecosystem Services Within the Everglades System And Their Rementioning

confidence: 99%

Valuation of Ecosystem Services for Environmental Decision Making in South Florida

Seeteram¹

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Anatomy of a red tide bloom off the southwest coast of Florida

Cited by 39 publications

References 51 publications

Satellite-Observed Black Water Events off Southwest Florida: Implications for Coral Reef Health in the Florida Keys National Marine Sanctuary

Satellite-Observed Black Water Events off Southwest Florida: Implications for Coral Reef Health in the Florida Keys National Marine Sanctuary

Optofluidic characterization of marine algae using a microflow cytometer

Valuation of Ecosystem Services for Environmental Decision Making in South Florida

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