Alkaline phosphatase activity in the phytoplankton communities of Monterey Bay and San Francisco Bay
Nicholson, David P.
Dyhrman, Sonya T.
Chavez, Francisco P.
MetadataShow full item record
Enzyme-labeled fluorescence (ELF) and bulk alkaline phosphatase (AP) activity enzyme assays were used to evaluate the phosphorus (P) status of phytoplankton communities in San Francisco and Monterey bays. Both regions exhibit spatial and temporal variability in bulk AP activity with maximum activities during the early spring and summer periods of high biological productivity. ELF analysis revealed pronounced differences in the makeup of organisms responsible for AP activity in these two environments. In Monterey Bay dinoflagellates are responsible for the bulk of the AP activity. Diatoms infrequently exhibited AP activity. Dinoflagellates that comprised only 14% of all cells counted in Monterey Bay accounted for 78% of AP-producing cells examined. The presence of AP activity in this group suggests that changes in P sources, concentrations, and bioavailability could disproportionably influence this group relative to diatoms in Monterey Bay. In San Francisco Bay, AP production, indicated by ELF, was associated primarily with bacteria attached to suspended particles, potentially used to hydrolyze organic compounds for carbon, rather than to satisfy P requirements. Our results highlight the importance of organic P as a bioavailable nutrient source in marine ecosystems and as a component of the marine P cycle.
Author Posting. © American Society of Limnology and Oceanography, 2006. This is the author's version of the work. It is posted here by permission of American Society of Limnology and Oceanography for personal use, not for redistribution. The definitive version was published in Limnology and Oceanography 51 (2006): 874–883.
Suggested CitationPreprint: Nicholson, David P., Dyhrman, Sonya T., Chavez, Francisco P., Paytan, Adina, "Alkaline phosphatase activity in the phytoplankton communities of Monterey Bay and San Francisco Bay", 2006, https://hdl.handle.net/1912/874
Showing items related by title, author, creator and subject.
Stratus Ocean Reference Station (20˚S, 85˚W), mooring recovery and deployment cruise, R/V Ron Brown cruise 04-11, December 5 - December 24, 2004 Colbo, Keir; Weller, Robert A.; Lord, Jeffrey; Smith, Jason C.; Bouchard, Paul R.; Fairall, Christopher W.; Bradley, Frank; Wolfe, Dan; Serpetzoglou, Efthymios; Tomlinson, Jason; Tisandie, Alvaro Gustave Vera; Bustos, Juan Francisco Santibanez (Woods Hole Oceanographic Institution, 2005-05)The Ocean Reference Station at 20° S, 85° W under the stratus clouds west of northern Chile and Peru is being maintained to provide ongoing, climate-quality records of surface meteorology, of air-sea fluxes of heat, ...
The United States' next generation of atmospheric composition and coastal ecosystem measurements : NASA's Geostationary Coastal and Air Pollution Events (GEO-CAPE) Mission Fishman, J.; Iraci, L. T.; Al-Saadi, J.; Chance, K.; Chavez, Francisco P.; Chin, M.; Coble, Paula G.; Davis, Curtiss O.; DiGiacomo, P. M.; Edwards, D.; Eldering, A.; Goes, Joachim I.; Herman, J.; Hu, Chuanmin; Jacob, Daniel J.; Jordan, C.; Kawa, S. Randolph; Key, R.; Liu, X.; Lohrenz, Steven E.; Mannino, Antonio; Natraj, V.; Neil, D.; Neu, J.; Newchurch, M. J.; Pickering, K.; Salisbury, Joseph E.; Sosik, Heidi M.; Subramaniam, A.; Tzortziou, Maria; Wang, Jian; Wang, M. (American Meteorological Society, 2012-10)The Geostationary Coastal and Air Pollution Events (GEO-CAPE) mission was recommended by the National Research Council's (NRC's) Earth Science Decadal Survey to measure tropospheric trace gases and aerosols and coastal ...
Impact of recently upwelled water on productivity investigated using in situ and incubation-based methods in Monterey Bay Manning, Cara C.; Stanley, Rachel H. R.; Nicholson, David P.; Smith, Jason M.; Pennington, Timothy; Fewings, Melanie R.; Squibb, Michael E.; Chavez, Francisco P. (John Wiley & Sons, 2017-03-11)Photosynthetic conversion of inline image to organic carbon and the transport of this carbon from the surface to the deep ocean is an important regulator of atmospheric inline image. To understand the controls on carbon ...