A historical assessment of Karenia brevis in the western Gulf of Mexico

Magaña, Hugo A.; Contreras, Cindy; Villareal, Tracy A.

doi:10.1016/s1568-9883(03)00026-x

Cited by 110 publications

(82 citation statements)

References 14 publications

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“…Dinoflagellates have a patchy distribution and may bloom to form 'red tides.' Some dinoflagellates are toxic and form harmful algal blooms; Karenia brevis blooms in the Gulf of Mexico and on the Atlantic coast of the USA, resulting in fish kills and human health problems (Magaña et al, 2003).…”

Section: Dinoflagellatesmentioning

confidence: 99%

Primary Production in the Ocean

Thornton¹

2012

Advances in Photosynthesis - Fundamental Aspects

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Section: Dinoflagellatesmentioning

confidence: 99%

Primary Production in the Ocean

Thornton¹

2012

Advances in Photosynthesis - Fundamental Aspects

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“…They are classified into two types, depending on their backbone structure: type A (PbTx-1, 7, 10) and type B (PbTx-2, 3, 5, 6, 8, 9, 11, 12, 13, 14) [96]. Globally, they occur mainly in Mexico, USA and New Zealand and they are produced by the species Karenia brevis [97,98]. Brevetoxins bind with high affinity (K D 1-50 nM) to site 5 of the voltage-dependent sodium channel α-subunit [99] resulting in a sustained sodium influx and consequent depolarisation of neural membranes.…”

Section: Brevetoxinsmentioning

confidence: 99%

Use of Biosensors as Alternatives to Current Regulatory Methods for Marine Biotoxins

Botana¹,

Vilariño²,

Alfonso³

et al. 2012

Springer Protocols Handbooks

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“…Sporadic blooms of the marine alga Karenia brevis take place from Texas to Florida along the Gulf of Mexico coastline (Kusek et al 1999, Magaña et al 2003, Vargo 2008. 1 The southwest Florida Gulf coast has experienced red tides more frequently than other areas of the Gulf.…”

Section: Introductionmentioning

confidence: 99%

The human health effects of Florida Red Tide (FRT) blooms: An expanded analysis

Hoagland

Jin

Beet

et al. 2014

Environment International

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Abstract:Human respiratory and digestive illnesses can be caused by exposures to brevetoxins from blooms of the marine alga Karenia brevis, also known as Florida red tide (FRT). K. brevis requires macro-nutrients to grow; although the sources of these nutrients have not been resolved completely, they are thought to originate both naturally and anthropogenically. The latter sources comprise atmospheric depositions, industrial effluents, land runoffs, or submerged groundwater discharges. To date, there has been only limited research on the extent of human health risks and economic impacts due to FRT. We hypothesized that FRT blooms were associated with increases in the numbers of emergency room visits and hospital inpatient admissions for both respiratory and digestive illnesses. We sought to estimate these relationships and to calculate the costs of associated adverse health impacts. We developed environmental exposure-response models to test the effects of FRT blooms on human health, using data from diverse sources. We estimated the FRT bloom-associated illness costs, using extant data and parameters from the literature.When controlling for resident population, a proxy for tourism, and seasonal and annual effects, we found that increases in respiratory and digestive illnesses can be explained by FRT blooms.Specifically, FRT blooms were associated with human health and economic effects in older cohorts (≥ 55 years of age) in six southwest Florida counties. Annual costs of illness ranged from $60,000 to $700,000 annually, but these costs could exceed $1.0 million per year for severe, long-lasting FRT blooms, such as the one that occurred during 2005. Assuming that the average annual illness costs of FRT blooms persist into the future, using a discount rate of 3%, the capitalized costs of future illnesses would range between $2-24 million.3

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A historical assessment of Karenia brevis in the western Gulf of Mexico

Cited by 110 publications

References 14 publications

Primary Production in the Ocean

Primary Production in the Ocean

Use of Biosensors as Alternatives to Current Regulatory Methods for Marine Biotoxins

The human health effects of Florida Red Tide (FRT) blooms: An expanded analysis

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