TY - JOUR
T1 - Saharan Dust and Florida Red Tides: The Cyanophyte Connection
AU - Walsh, John J.
AU - Steidinger, Karen A.
PY - 2001/6/15
Y1 - 2001/6/15
N2 - Prediction of the consequences of harmful algal blooms for humans and other vertebrates is constrained by an inadequate understanding of the factors that promote their initiation. A simple exponential growth model of net production is used for analysis of four time series at different sampling intervals over similar to 40 years of red tide strandings, associated fish kills, and concomitant dust loadings on the West Florida shelf. at least large summer blooms of a toxic dinoflagellate Gymnodinium breve appear to be primed regularly by an aeolian supply of nutrients. Wet deposition of Saharan mineral aerosols may alleviate iron limitation of diazotrophic cyanophytes, which in turn fuel the nitrogen economy of red tides in the eastern Gulf of Mexico. Vagaries of the wind-induced circulation and of selective grazing pressure on phytoplankton competitors within phosphorus replete coastal waters then determine each year the residence times for exposure of G. breve-mediated neurotoxins to fish, manatees, and humans along the southeastern United States.
AB - Prediction of the consequences of harmful algal blooms for humans and other vertebrates is constrained by an inadequate understanding of the factors that promote their initiation. A simple exponential growth model of net production is used for analysis of four time series at different sampling intervals over similar to 40 years of red tide strandings, associated fish kills, and concomitant dust loadings on the West Florida shelf. at least large summer blooms of a toxic dinoflagellate Gymnodinium breve appear to be primed regularly by an aeolian supply of nutrients. Wet deposition of Saharan mineral aerosols may alleviate iron limitation of diazotrophic cyanophytes, which in turn fuel the nitrogen economy of red tides in the eastern Gulf of Mexico. Vagaries of the wind-induced circulation and of selective grazing pressure on phytoplankton competitors within phosphorus replete coastal waters then determine each year the residence times for exposure of G. breve-mediated neurotoxins to fish, manatees, and humans along the southeastern United States.
UR - https://digitalcommons.usf.edu/msc_facpub/163
U2 - 10.1029/1999JC000123
DO - 10.1029/1999JC000123
M3 - Article
VL - 106
JO - Journal of Geophysical Research - Oceans
JF - Journal of Geophysical Research - Oceans
ER -