Results 61 to 70 of about 20,226 (142)

When the Red Tide Rolls In: A Red Tide Associated Angioedema Case Report

Clinical Practice and Cases in Emergency Medicine, 2021
Introduction: Histamine-mediated angioedema is a potentially life-threatening reaction following exposures that incite mast cell activation. In Florida, red tides are a frequent phenomenon caused by overgrowth of the harmful algae species Karenia brevis,
Sarah Rabinowitz, Joshua J. Solano
doaj   +1 more source

Short‐Term Estuarine Phytoplankton Dynamics in Response to Hurricanes Along the Gulf Coast of America: A Variational Autoencoder (VAE) Approach With Satellite and Bio‐Optical Observations

Journal of Geophysical Research: Oceans, Volume 131, Issue 3, March 2026.
Abstract Hurricanes drive diverse estuarine phytoplankton responses and can trigger cascading ecological and physicochemical impacts. Capturing these short‐term dynamics requires high spatiotemporal resolution. Here, we applied a globally‐applicable coastal ocean color algorithm, Variational Autoencoder (VAE), to Sentinel‐2 MSI imagery for chlorophyll ...
J. Li, B. Liu, J. Lou, X. Yuan, E. J. D’Sa, M. M. Baustian, M. La Peyre, A. Freeman, V. S. Martins, E. Habib   +9 more
wiley   +1 more source

Frontogenesis by material convergence in an estuary and its adjacent coastal ocean

Limnology and Oceanography, Volume 71, Issue 1, January 2026.
Abstract Surface fronts are common features across the world's oceans, particularly in estuarine and coastal regions where the merging of freshwater and saltwater creates strong density gradients. It has long been documented that fronts in these regions can trap and concentrate various properties such as floating debris, nutrients, larvae, and other ...
Jing Chen, Robert H. Weisberg, Lianyuan Zheng, Chuanmin Hu, Yingjun Zhang, Alexander K. Nickerson, Jeffrey C. Donovan, Yonggang Liu   +7 more
wiley   +1 more source

Algal toxins alter copepod feeding behavior. [PDF]

PLoS ONE, 2012
Using digital holographic cinematography, we quantify and compare the feeding behavior of free-swimming copepods, Acartia tonsa, on nutritional prey (Storeatula major) to that occurring during exposure to toxic and non-toxic strains of Karenia brevis and
Jiarong Hong, Siddharth Talapatra, Joseph Katz, Patricia A Tester, Rebecca J Waggett, Allen R Place   +5 more
doaj   +1 more source

Lessons learned from mesocosm experiments with curcumin: Pilot studies of a harmful algal bloom mitigation technique

Limnology and Oceanography: Methods, Volume 24, Issue 1, January 2026.
Abstract Curcumin, a natural plant product derived from Curcuma longa, was assessed as a mitigation technique against the toxic bloom‐forming dinoflagellate Karenia brevis in two mesocosm experiments taking place in 2022 and 2024. In these experiments, curcumin was applied at a dosage of 5 mg L−1 to K.
Victoria Devillier, Emily R. Hall, Cynthia A. Heil, Jessica D. Frankle, Sarah Klass, Jennifer H. Toyoda, Rich Pierce   +6 more
wiley   +1 more source

Highly Resolved Surface Phytoplankton Community Composition Along the British Columbia Coast, Derived From In Situ Hyperspectral Radiometry

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 10, October 2025.
Abstract Quantitative measurements of phytoplankton community composition (PCC) are essential for understanding fisheries production, ocean nutrient cycling, and the export of particulate carbon to the ocean interior. However, these measurements are constrained in dynamic coastal waters due to the spatial‐temporal constraints of in situ sampling ...
Perumthuruthil Suseelan Vishnu, Justin Del Bel Belluz, Hongyan Xi, Midhun Shah Hussain, Astrid Bracher, Maycira Costa   +5 more
wiley   +1 more source

Monitoring harmful algal blooms in surface water bodies across U.S. using Sentinel-2 images and Machine Learning

Environmental Research Communications
Harmful algal blooms (HABs) are an increasing threat to surface water quality. Chlorophyll-a (Chl-a), a proxy for phytoplankton biomass, and Karenia brevis ( K.
Sumit Mahato, Dongmei Feng, Pradeep Ramtel, Xiuming Sun, Ebrahim Ahmadisharaf   +4 more
doaj   +1 more source

Impact of nutritional history, prey quality, and quantity on grazing and photophysiological responses in the mixoplanktonic dinoflagellate Karenia brevis

Limnology and Oceanography, Volume 70, Issue 9, Page 2603-2617, September 2025.
Abstract The mixotrophic toxic dinoflagellate Karenia brevis forms red tides almost annually along Florida's Gulf coast. We hypothesize that the nutritional status and abundance of its prey, the picocyanobacterium Synechococcus, will affect its feeding rates and growth responses, with implications for bloom dynamics.
So Hyun Ahn, Xavier Mayali, Peter K. Weber, Patricia M. Glibert   +3 more
wiley   +1 more source

Differences in growth and toxicity of Karenia [PDF]

, 2006
Harmful algal blooms (HABs) in the Gulf of Mexico are primarily caused by dense aggregations of the dinoflagellate species, Karenia brevis. Karenia brevis produces a highly toxic neurotoxin, brevetoxin which has been shown to cause Neurotoxic Shellfish ...
Neely, Tatum Elizabeth
core   +2 more sources

Effects of in vitro Brevetoxin Exposure on Apoptosis and Cellular Metabolism in a Leukemic T Cell Line (Jurkat)

Marine Drugs, 2008
Harmful algal blooms (HABs) of the toxic dinoflagellate, Karenia brevis, produce red tide toxins, or brevetoxins. Significant health effects associated with red tide toxin exposure have been reported in sea life and in humans, with brevetoxins documented
John W. Sleasman, Richard H. Pierce, Kathryn Strohbehn, Stephanie R. Leggett, Catherine J. Walsh   +4 more
doaj