Phosphate and iron limitation of phytoplankton biomass in Lake Tahoe
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 |
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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 |
Index ID | 70017299 |
Record Source | USGS Publications Warehouse |