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Creator:: Wetz, Michael S., Hales, Burke, Chase, Zanna, Wheeler, Patricia A., and Whitney, Michael M.
Abstract:: Three cross‐shelf transects were conducted off northern Oregon in February, 2003, coincident with flooding of Coast Range rivers, to assess the riverine impact on coastal ocean biogeochemistry. During downwelling conditions, low salinity river‐influenced water was located in a narrow band near the coast and contained elevated macronutrient, iron, and organic...
Resource Type:: Article
Full Text:: Society of Limnology and Oceanography, Inc. 2221 source for zooplankton emerging from diapause

Creator:: Wetz, Michael S. and Wheeler, Patricia A.
Abstract:: Dissolved organic matter (DOM) production was examined in axenic batch cultures of five coastal diatom species. For Chaetoceros decipiens, dissolved organic carbon (DOC) accumulated beginning in late exponential growth as a result of increased cell density. For Cylindrotheca closterium, DOC actually decreased in late exponential growth and reached zero by...
Resource Type:: Article
Full Text:: 0434810 to P.A.W. Limnol. Oceanogr., 52(2), 2007, 798–807 E 2007, by the American Society of Limnology

Creator:: Menge, Bruce A., Daley, Bryon A., Wheeler, Patricia A., and Strub, P. Ted
Abstract:: On Oregon coastal rocky shores, filter‐feeders were relatively abundant and macrophytes were relatively scarce at Strawberry Hill, whereas opposite abundance patterns occurred at Boiler Bay. To determine whether nearshore oceanographic differences were associated with these patterns, we made shore‐based measurements of nutrient and Chl a concentrations. We used a three‐level...
Resource Type:: Article
Full Text:: phytoplankton concentration. 1hl1110/. Ocrmlogr.. 42( I ), 1997, 57-M-i 0 1997, by the American Society of

Creator:: Wheeler, Patricia A. and McCarthy, James J.
Abstract:: The uptake of methylammonium (MA) by Chesapeake Bay phytoplankton was measured in short term experiments by using the 14C radioisotope. This uptake was inversely related to ambient NH4+ concentrations, and the specificity for uptake of both substrates was demonstrated by competitive inhibition. At stations with low ambient NH4+, MA uptake...
Resource Type:: Article
Full Text:: measurements Limnol. Oceanogr., 27(G), 1982, 1129-1140 @I 1982, by the American Society of Limnology and

Creator:: Wheeler, Patricia A., North, B., Littler, M., and Stephens, G.
Abstract:: Uptake of [14C]glycine by various size fractions of natural plankton communities was measured to determine if phytoplankton can compete effectively with other members of the plankton community for the free amino acids in seawater. The simultaneous occurrence of glycine uptake, plant pigments, and photosynthetic activity in the same size fractions,...
Resource Type:: Article
Full Text:: WHEELER, P., B. NORTH, M. LITTLER, AND G. STEPHENS. Uptake of

Creator:: Kristiansen, Svein, Farbrot, Tove, and Wheeler, Patricia A.
Abstract:: The uptake rates of nitrate, ammonium, and urea were measured with a ¹⁵N technique during seven cruises in the marginal ice zone (MIZ) in the Barents Sea in 1984–1988. The results from all the cruises were pooled to obtain means for the prebloom, bloom, transition, and postbloom periods. New production—nitrate...
Resource Type:: Article
Full Text:: zone Limnol. Oceanogr., 39(7), 1994, 1630-1642 0 1994, by the American Society of Limnology and

Creator:: Dickson, Mary-Lynn and Wheeler, Patricia A.
Abstract:: PN-specific, absolute, and Chl a-specific nitrate uptake rates were measured during two upwelling seasons and one winter off Oregon. Although PN-specific and absolute uptake rates showed no dependence on nitrate concentration, Michaelis-Menten kinetics applied when the uptake rates were normalized to Chl a. Chl a-specific nitrate uptake rates were saturated...
Resource Type:: Article
Full Text:: Limnol. Oceanogr., 40(3), 1995, 533-543 0 1995, by the American Society of Limnology and Oceanography

Creator:: Dickson, Mary-Lynn and Wheeler, Patricia A.
Abstract:: Chlorophyll a concentrations were measured as a function of depth from 28 to 48°N along 152°W in March 1991 with Whatman GF/F and 0.2‐µm Nuclepore filters. Surface Chl a concentrations measured with 0.2‐µm Nuclepore filters were up to fourfold higher than those measured with Whatman GF/F filters. The largest difference...
Resource Type:: Article
Full Text:: Oceanogr., 38(8), 1993, 1818-1822 0 1993, by the American Society of Limnology and Oceanography, Inc

Creator:: Kirchman, David L., Keil, Richard G., and Wheeler, Patricia A.
Abstract:: The purpose of this study was to test the hypothesis that NH4+ uptake by heterotrophic bacteria in the subarctic Pacific is C limited. Addition of glucose (0.5–1.0 μM) stimulated NH4+ uptake in unfractionated water but had no effect on bacterial abundance. Glucose stimulation of NH4+ uptake was even greater in...
Resource Type:: Article
Full Text:: . Oceanogr.. 35(6), 1990, 1258-1266 0 1990, by the American Society of Limnology and Oceanography, Inc

Creator:: Dickson, Mary-Lynn and Wheeler, Patricia A.
Resource Type:: Article
Full Text:: 1995, by the American Society of Limnology and Oceanography, Inc. Quantifying the role of

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