Results 61 to 70 of about 1,522 (191)

An effective algaecide for the targeted destruction of Karenia brevis

Harmful Algae
We address the targeted destruction of Karenia brevis using the algaecide calcium peroxide, in tandem with the flocculation and sinking of the species. The specific aspect of the approach is the incorporation of the algaecide within the floc to rapidly kill K. brevis, thus minimizing escape of cells from the floc and reentry to the water column.
Istiak Hossain, Briana Mays, Sydney L Hanhart, John Hubble, Pedram Azizihariri, T.I. McLean, Richard Pierce, Vince Lovko, Vijay T John   +8 more
openaire   +2 more sources

Fusing Multi‐ and Hyperspectral Satellite Data for Harmful Algal Bloom Monitoring With Self‐Supervised and Hierarchical Deep Learning

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract We present a self‐supervised machine learning framework for detecting and mapping the severity and speciation of harmful algal blooms (HABs) using multi‐sensor satellite data. By fusing reflectance data from operational polar‐orbiting satellite‐based instruments (VIIRS, MODIS, OLCI, and OCI) with TROPOMI solar‐induced fluorescence (SIF), our ...
Nicholas J. LaHaye, Kelly M. Luis, Michelle M. Gierach   +2 more
wiley   +1 more source

Transcriptomic Response of Karenia brevis to Environmental Stress [PDF]

, 2020
Karenia brevis is a toxic, marine phytoplankton that forms harmful algal blooms in the Gulf of Mexico. This toxicity is due to the production of ladder-frame polyketides known as brevetoxins, for which the production pathway and function in the cell are ...
Daugherty, Mckensie Nicole
core  

Chronic and punctuated changes in subtropical reef fish assemblages

Ecosphere, Volume 17, Issue 4, April 2026.
Abstract Understanding temporal changes in marine biodiversity is crucial for managing and conserving reef ecosystems in the face of global environmental shifts. Although biodiversity changes at global and regional scales often differ, the role of subtropical systems in these patterns has been relatively understudied until recently.
Michael J. Schram, Meaghan E. Emory, Joshua P. Kilborn, Jonathan A. Peake, Kara R. Wall, Ian Williams, Christopher D. Stallings   +6 more
wiley   +1 more source

Comparative analysis of three brevetoxin-associated bottlenose dolphin (Tursiops truncatus) mortality events in the Florida Panhandle region (USA).

PLoS ONE, 2012
In the Florida Panhandle region, bottlenose dolphins (Tursiops truncatus) have been highly susceptible to large-scale unusual mortality events (UMEs) that may have been the result of exposure to blooms of the dinoflagellate Karenia brevis and its ...
Michael J Twiner, Leanne J Flewelling, Spencer E Fire, Sabrina R Bowen-Stevens, Joseph K Gaydos, Christine K Johnson, Jan H Landsberg, Tod A Leighfield, Blair Mase-Guthrie, Lori Schwacke, Frances M Van Dolah, Zhihong Wang, Teresa K Rowles   +12 more
doaj   +1 more source

The degradation of Karenia brevis toxins utilizing ozonated seawater

Harmful Algae, 2003
Abstract Florida red tides impose both an economic and health impact on the state. The purpose of this research was to examine the effectiveness of ozone to reduce the numbers of Florida red tide organism ( Karenia brevis Davis) and its associated toxins in an artificial seawater environment.
University of Florida, Food Science and Human Nutrition Department FSHN Building, Newell Drive, Gainesville, FL 32611, USA ( host institution ), Schneider, Keith R. ( author ), Pierce, Richard H. ( author ), Rodrick, Gary E. ( author )   +3 more
openaire   +2 more sources

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

First Light Demonstration of Red Solar Induced Fluorescence for Harmful Algal Bloom Monitoring

Geophysical Research Letters, 2023
The risks harmful algal blooms (HAB) pose to aquatic ecosystems, public health, and coastal economies necessitate supplementation of current observation strategies.
Kelly Luis, Philipp Köhler, Christian Frankenberg, Michelle Gierach   +3 more
doaj   +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

Putative monofunctional type I polyketide synthase units: a dinoflagellate-specific feature? [PDF]

PLoS ONE, 2012
Marine dinoflagellates (alveolata) are microalgae of which some cause harmful algal blooms and produce a broad variety of most likely polyketide synthesis derived phycotoxins.
Karsten Eichholz, Bánk Beszteri, Uwe John   +2 more
doaj   +1 more source