Results 41 to 50 of about 145 (130)

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

Brevetoxin Metabolites: Emerging Toxins in French Shellfish Determined by LC-MS/MS and ELISA

Marine Drugs
In France, as part of the monitoring program for the emergence of marine toxins in shellfish (EMERGTOX), brevetoxins (BTX-2, BTX-3) were first detected in shellfish from Corsica (Mediterranean Sea) in 2018.
Zouher Amzil, Amélie Derrien, Korian Lhaute, Aouregan Terre Terrillon, Simon Tanniou   +4 more
doaj   +1 more source

Interaction of a dinoflagellate neurotoxin with voltage-activated ion channels in a marine diatom [PDF]

PeerJ, 2018
Background The potent neurotoxins produced by the harmful algal bloom species Karenia brevis are activators of sodium voltage-gated channels (VGC) in animals, resulting in altered channel kinetics and membrane hyperexcitability.
Sheila A. Kitchen, Andrea J. Bourdelais, Alison R. Taylor   +2 more
doaj   +2 more sources

Predicting Karenia brevis Induced Respiratory Irritation at Individual Southwest Florida Beaches Using Cell Abundances Plus Wind Direction and Speed

GeoHealth, Volume 10, Issue 4, April 2026.
Abstract Nearly annually, blooms of the dinoflagellate Karenia brevis form along the southwest Florida coast leading to a variety of negative impacts, including respiratory irritation (RI) in humans. To limit these impacts, NOAA's National Centers for Coastal Ocean Science (NCCOS) developed a RI model to provide beach‐goers with a category‐based ...
K. M. Collins, A. G. Hounshell, B. Kirkpatrick, A. Cook, K. A. Hubbard, M. C. Tomlinson, R. P. Stumpf   +6 more
wiley   +1 more source

Binding of brevetoxins and ciguatoxin to the voltage-sensitive sodium channel and conformational analysis of brevetoxin B

Toxicon, 1992
The marine toxins known generically as brevetoxins, as well as their structural relative ciguatoxin, are known as polyether ladder toxins, and bind uniquely to site 5 of the voltage-sensitive sodium channel. Rat brain synaptosome binding data show similarities in binding affinity for brevetoxins having the same structural (ladder) backbone, but ...
R E, Gawley, K S, Rein, M, Kinoshita, D G, Baden   +3 more
openaire   +2 more sources

Total Synthesis of Brevetoxin B [PDF]

ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Kadota, Isao, Takamura, Hiroyoshi
openaire   +2 more sources

A New Cytotoxicity Assay for Brevetoxins Using Fluorescence Microscopy

Marine Drugs, 2014
Brevetoxins are a family of ladder-framed polyether toxins produced during blooms of the marine dinoflagellate, Karenia brevis. Consumption of shellfish or finfish exposed to brevetoxins can lead to the development of neurotoxic shellfish poisoning.
Jennifer R. McCall, Elizabeth A. Elliott, Andrea J. Bourdelais   +2 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

Brevetoxin Dynamics and Bioavailability from Floc Following PAC-Modified Clay Treatment of Karenia brevis Blooms

Toxins
Harmful algal blooms (HABs) caused by the dinoflagellate Karenia brevis present serious ecological and public health concerns due to the production of brevetoxins (BTX).
Nicholas R. Ohnikian, Christopher D. Sibley, R. Ben Freiberger, Kristen N. Buck, Alyssa Myers, Samantha Harlow, Donald M. Anderson, Richard Pierce, Jennifer H. Toyoda   +8 more
doaj   +1 more source

An ecological framework for microbial metabolites in the ocean ecosystem

Limnology and Oceanography Letters, Volume 10, Issue 5, Page 636-659, September 2025.
Abstract The ocean microbe‐metabolite network involves thousands of individual metabolites that encompass a breadth of chemical diversity and biological functions. These microbial metabolites mediate biogeochemical cycles, facilitate ecological relationships, and impact ecosystem health. While analytical advancements have begun to illuminate such roles,
Bryndan P. Durham, Winifred M. Johnson, Catherine C. Bannon, Erin M. Bertrand, Anitra E. Ingalls, Bethanie R. Edwards, Amy Apprill, Angela K. Boysen, Randelle M. Bundy, Huan Chen, Frank X. Ferrer‐González, Cara Fiore, Katherine R. Heal, Constanze Kuhlisch, Shuting Liu, Kaijun Lu, Laurel E. Meke, Sammy Pontrelli, Prabavathy Vaiyapuri Ramalingam, Alicia M. Reigel, Joshua S. Sacks, Jeremy E. Schreier, Jegan Sekar, Mario Uchimiya, Elizabeth B. Kujawinski   +24 more
wiley   +1 more source