Results 111 to 120 of about 960 (153)

The hemolytic activity of Karenia selliformis and two clones of Karenia brevis throughout a growth cycle

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 Tatters
exaly   +2 more sources

The effects of moderate concentrations of Karenia brevis on stone crab reproduction

Marine Environmental Research, 2023
The stone crab, Menippe mercenaria, supports a commercial fishery along Florida's Gulf coast where harmful algae blooms, known as red tides (Karenia brevis) develop. Red tides occur nearly annually and can overlap with the stone crab reproductive season. We determined the impact of moderate red tide (K.
Philip M. Gravinese, Kaili M. Gregory, Jessica H. Bartzick, Emily R. Ramos, Samantha M. Stewart, Vincent J. Lovko   +5 more
openaire   +2 more sources

Geospatial distribution of hypoxia associated with a Karenia brevis bloom

Estuarine, Coastal and Shelf Science, 2021
Abstract In 2018, the presence of bottom water hypoxia along the SW Florida coast was investigated during a bloom of the toxic dinoflagellate Karenia brevis. The bloom was first detected in November 2017. Monitoring of oxygen levels and bloom densities was carried out in 2018 and 2019 using sampling grids.
Eric C. Milbrandt, A.J. Martignette, M.A. Thompson, R.D. Bartleson, E.J. Phlips, S. Badylak, N.G. Nelson   +6 more
openaire   +1 more source

Zooplankton and Karenia brevis in the Gulf of Mexico

Continental Shelf Research, 2008
Blooms of the toxic dinoflagellate Karenia brevis are common in the Gulf of Mexico, yet no in situ studies of zooplankton and K. brevis have been conducted there. Zooplankton abundance and taxonomic composition at non-bloom and K. brevis bloom stations within the Ecology of Harmful Algal Blooms (ECOHAB) study area were compared.
Lester, Kristen M., Heil, Cynthia A., Neely, Mary B., Spence, Danylle N., Murasko, Susan, Hopkins, T. L., Sutton, Tracey, Burghhart, Scott, Bohrer, Richard N., Remsen, Andrew, Vargo, Gabriel A., Walsh, John J.   +11 more
openaire   +2 more sources

Use of dissolved inorganic and organic phosphorus by axenic and nonaxenic clones of Karenia brevis and Karenia mikimotoi

Harmful Algae, 2015
Nearly annual blooms of the marine dinoflagellate Karenia brevis, which initiate offshore on the West Florida Shelf in oligotrophic waters, cause widespread environmental and economic damage. The success of K. brevis as a bloom-former is partially attributed to its ability to use a diverse suite of nutrients from natural and anthropogenic sources ...
Bill, Richardson, Alina A, Corcoran
openaire   +2 more sources

Transcriptome remodeling associated with chronological aging in the dinoflagellate, Karenia brevis

Marine Genomics, 2012
The toxic dinoflagellate, Karenia brevis, forms dense blooms in the Gulf of Mexico that persist for many months in coastal waters, where they can cause extensive marine animal mortalities and human health impacts. The mechanisms that enable cell survival in high density, low growth blooms, and the mechanisms leading to often rapid bloom demise are not ...
Jillian G, Johnson, Jeanine S, Morey, Marion G, Neely, James C, Ryan, Frances M, Van Dolah   +4 more
openaire   +2 more sources

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

Harmful Algae, 2003
This 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, Cindy Contreras, Tracy A. Villareal   +2 more
openaire   +1 more source

Is Karenia brevis really a low-light-adapted species?

Harmful Algae, 2019
Despite 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, Sugandha, Shankar, Katherine A, Hubbard, Alina A, Corcoran   +3 more
openaire   +2 more sources