Toxic Phytoplankton Blooms in the Sea.Theodore J. Smayda , Yuzuru Shimizu

1994 ◽  
Vol 69 (1) ◽  
pp. 112-113
Author(s):  
Edward J. Carpenter
Keyword(s):  
Phytoplankton Blooms ◽  
Toxic Phytoplankton

scholarly journals Spatiotemporal Relationships of Phytoplankton Blooms, Drought, and Rainstorms in Freshwater Reservoirs

Water ◽  
2020 ◽  
Vol 12 (2) ◽  
pp. 404
Author(s):  
Abigail S. Knapp ◽  
Adam M. Milewski
Keyword(s):  
United States ◽  
Statistical Modeling ◽  
Algal Blooms ◽  
Algal Bloom ◽  
Spatiotemporal Dynamics ◽  
Phytoplankton Blooms ◽  
Toxic Phytoplankton ◽  
Best Fitting ◽  
Global Threat ◽  
The Impact

Algal blooms, especially those composed of toxic phytoplankton, are a global threat to eutrophic and mesotrophic freshwater reservoirs. While extreme hydrologic events such as flooding and drought have been shown to control bloom onset and success, the spatiotemporal dynamics of these relationships are still unclear for mesotrophic reservoirs. In this study, the relationships between hydrologic events and phytoplankton in Lake Allatoona and Lake Lanier, Georgia, United States, were characterized using historical and satellite datasets from 2008 to 2017 and statistical modeling. Results showed that the impact of stormflow and rainstorm events varied systematically from riverine to lacustrine reaches of the two reservoirs on weekly and monthly scales. Precipitation duration and stormflow were the most significant and best-fitting predictors of algal bloom biomass in deeper reaches of the two reservoirs, suggesting that algal blooms in more lacustrine environments may be better equipped for wet and stormy regimes than has been previously hypothesized.

Aircraft Remote Sensing of Toxic Phytoplankton Blooms: A Case Study from Cardigan River, Prince Edward Island

1997 ◽  
Vol 23 (1) ◽  
pp. 15-23 ◽  
Author(s):  
S. Sathyendranath ◽  
D.V. Subba Rao ◽  
Z. Chen ◽  
V. Stuart ◽  
T. Platt ◽  
...  
Keyword(s):  
Remote Sensing ◽  
Prince Edward Island ◽  
Phytoplankton Blooms ◽  
Toxic Phytoplankton

Toxic phytoplankton blooms in the sea

Aquaculture ◽  
1993 ◽  
Vol 118 (1-2) ◽  
pp. 164-165
Author(s):  
S.J. De Groot
Keyword(s):  
Phytoplankton Blooms ◽  
Toxic Phytoplankton

scholarly journals Linking variations in sea spray aerosol particle hygroscopicity to composition during two microcosm experiments

2016 ◽  
Author(s):  
Sara D. Forestieri ◽  
Gavin C. Cornwell ◽  
Taylor M. Helgestad ◽  
Kathryn A. Moore ◽  
Christopher Lee ◽  
...  
Keyword(s):  
Light Scattering ◽  
Relative Humidity ◽  
Salt Content ◽  
Sea Salt ◽  
Sea Spray ◽  
Hygroscopic Growth ◽  
Phytoplankton Blooms ◽  
Aerosol Composition ◽  
Sea Spray Aerosol ◽  
Indoor And Outdoor

Abstract. The extent to which water uptake influences the light scattering ability of marine sea spray aerosol (SSA) particles depends critically on SSA chemical composition. The organic fraction of SSA can increase during phytoplankton blooms, decreasing the salt content and therefore the hygroscopicity of the particles. In this study, subsaturated hygroscopic growth factors at 85 % relative humidity (GF(85 %)) of SSA particles were quantified during two induced phytoplankton blooms in marine aerosol reference tanks (MARTs). One MART was illuminated with fluorescent lights and the other was illuminated with sunlight, referred to as the "indoor" and "outdoor" MARTs, respectively. GF(85 %) values for SSA particles were derived from measurements of light scattering and particle size distributions, concurrently with online single particle and bulk aerosol composition measurements. During both microcosm experiments, the observed bulk average GF(85 %) values were depressed substantially relative to pure, inorganic sea salt, by 10 to 19 %, with a one (indoor MART) and six (outdoor MART) day lag between GF(85 %) depression and the peak chlorophyll-a concentrations. The fraction of organiccontaining SSA particles generally increased after the peak of the phytoplankton blooms. The GF(85 %) values were inversely correlated with the fraction of particles containing organic or other biological markers. This indicates these particles were less hygroscopic than the particles identified as predominately sea salt containing and demonstrates a clear relationship between SSA particle composition and the sensitivity of light scattering to variations in relative humidity. The implications of these observations to the direct climate effects of SSA particles are discussed.

Role of wind in regulating phytoplankton blooms on the Mid-Atlantic Bight

2013 ◽  
Vol 63 ◽  
pp. S26-S35 ◽  
Author(s):  
Y. Xu ◽  
B. Cahill ◽  
J. Wilkin ◽  
O. Schofield
Keyword(s):  
Phytoplankton Blooms
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