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Phosphate and iron limitation of phytoplankton biomass in Lake Tahoe

January 1, 1992

Bioassays were carried out to assess the response of inoculated, single-species diatom populations (Cyclotella meneghiniana and Aulocosiera italica) to additions of synthetic chelators and phosphate. A chemical speciation model along with the field data was also used to predict how trace metal speciation, and hence bioavailability, was affected by the chelator additions. Results suggest that phosphate was limiting to phytoplankton biomass. Other solutes, Fe in particular, may also exert controls on biomass. Nitrate limitation seems less likely, although Fe-limiting conditions may have led to an effective N limitation because algae require Fe to carry out nitrate reduction. -from Authors

Citation Information

Publication Year 1992
Title Phosphate and iron limitation of phytoplankton biomass in Lake Tahoe
DOI 10.1139/f92-136
Authors Cecily C.Y. Chang, J.S. Kuwabara, S.P. Pasilis
Publication Type Article
Publication Subtype Journal Article
Series Title Canadian Journal of Fisheries and Aquatic Sciences
Series Number
Index ID 70017299
Record Source USGS Publications Warehouse
USGS Organization