Results 161 to 170 of about 1,522 (191)
Some of the next articles are maybe not open access.
Journal of Applied Phycology, 2009
Blooms of the toxic dinoflagellate, Karenia brevis, occur annually along the Gulf coast of Florida. Other species, like Karenia selliformis, are at times found in association. Hemolytic activity, the ability to lyse red blood cells, of two K. brevis clones (SP3 non-toxic (N-tox) and SP3 super toxic (S-tox)) from the Gulf of Mexico and a single clone of
Avery O. Tatters +2 more
openaire +1 more source
Blooms of the toxic dinoflagellate, Karenia brevis, occur annually along the Gulf coast of Florida. Other species, like Karenia selliformis, are at times found in association. Hemolytic activity, the ability to lyse red blood cells, of two K. brevis clones (SP3 non-toxic (N-tox) and SP3 super toxic (S-tox)) from the Gulf of Mexico and a single clone of
Avery O. Tatters +2 more
openaire +1 more source
Is Karenia brevis really a low-light-adapted species?
Harmful Algae, 2019Despite nearly annual blooms of the neurotoxic dinoflagellate Karenia brevis (Davis) G. Hansen and Moestrup in the Gulf of Mexico, defining the suite of biological traits that explain its proliferation has remained challenging. Studies have described K.
Charles L, Tilney +3 more
openaire +2 more sources
A historical assessment of Karenia brevis in the western Gulf of Mexico
Harmful Algae, 2003This work examines the historical records of red tides in the western Gulf of Mexico (GOM) as they pertain to the toxic dinoflagellate Karenia brevis(Davis) G. Hansen and Moestrup. K. brevis commonly causes major fish kills, human respiratory distress, and significant economic disruption in the Gulf of Mexico. It can also lead to illness by consumption
Hugo A. Magaña +2 more
openaire +1 more source
Carotenoids of the Florida red tide dinoflagellate Karenia brevis
Biochemical Systematics and Ecology, 2003The red tide dinoflagellate Karenia brevis, formerly Gymnodinium breve, contained fucoxanthin, 19′-butanoyloxyfucoxanthin and 19’-hexanoyloxyfucoxanthin as carotenoid chemotaxonomic markers. In addition to β,e-carotene, β,β-carotene, diatoxanthin, diadinoxanthin and 19-hexanoyloxyparacentrone 3-acetate, the diester of gyroxanthin was also present ...
Terje Bjørnland +2 more
openaire +1 more source
Diel vertical migration thresholds of Karenia brevis (Dinophyceae)
Harmful Algae, 2009Abstract Light and nutrient availability change throughout dinoflagellate diel vertical migration (DVM) and/or with sub-population location in the water column along the west Florida shelf. Typically, the vertical depth of the shelf is greater than the distance a sub-population can vertically migrate during a diel cycle, limiting the ability of a sub-
Blake A. Schaeffer +4 more
openaire +1 more source
Prevention and control of Karenia brevis blooms
Harmful Algae, 2009With the recurrent and potentially severe impacts of Karenia brevis blooms in the Gulf of Mexico, new management approaches have been examined to potentially prevent and control these blooms. This paper summarizes past and present research and strategies for the prevention and control of K. brevis blooms.
openaire +1 more source
Fate of four phthalate esters with presence of Karenia brevis: Uptake and biodegradation
Aquatic Toxicology, 2019Phthalate esters (PAEs), one class of the most frequently detected endocrine-disrupting chemicals (EDCs) in marine environment, have aroused wide public concerns because of their carcinogenicity, teratogenicity, and mutagenicity. However, the environmental fate of PAEs in the occurrence of harmful algal blooms remains unclear.
Cuizhu Sun +8 more
openaire +2 more sources
Optical Detection and Assessment of the Harmful Alga, Karenia brevis
2003Abstract : Our overall hypothesis is that populations of the red tide species Karenia brevis give rise to distinct and identifiable optical signatures in inherent optical properties and remote sensing reflectance. Accordingly, the primary objective of this project is to refine and evaluate optical approaches to detect and assess bloom events of K ...
Oscar M. Schofield, Steven E. Lohrenz
openaire +1 more source
Inhibitory effects and oxidative target site of dibutyl phthalate on Karenia brevis
Chemosphere, 2015The inhibitory action and possible damage mechanism of dibutyl phthalate (DBP) on the red tide algae Karenia brevis were investigated. The results showed that the algae experienced oxidative stress after exposure to 5mgL(-1) DBP. Malondialdehyde (MDA) peaked after 72h, with a value approximately 2.3 times higher than that observed for untreated cells ...
Feng-min, Li +6 more
openaire +2 more sources
A handheld NASBA analyzer for the field detection and quantification of Karenia brevis
Harmful Algae, 2007Blooms of Karenia brevis, the red tide forming dinoflagellate in the Gulf of Mexico, cause a myriad of ecological and economic problems for coastal communities, including massive fish and mammal mortalities, and damage to tourism and fisheries/shellfish harvesting industries. There is a need for accurate detection and prediction of K.
Erica T. Casper +6 more
openaire +1 more source