THE SIGNIFICANCE OF UREA FOR PHYTOPLANKTON NUTRITION IN THE YORK RIVER, VIRGINIA

[1]  L. Haas The effect of the spring-neap tidal cycle on the vertical salinity structure of the James, York and Rappahannock Rivers, Virginia, U.S.A.☆ , 1977 .

[2]  J. Caperon,et al.  The Rate of Utilization of Urea, Ammonium, and Nitrate by Natural Populations of Marine Phytoplankton in a Eutrophic Environment , 1976 .

[3]  O. Mitamura,et al.  Decomposition of urea associated with photosynthesis of phytoplankton in coastal waters , 1975 .

[4]  J. Leftley,et al.  Urease and ATP : Urea Amidolyase Activity in Unicellular Algae , 1973 .

[5]  R. Eppley,et al.  A STUDY OF PLANKTON DYNAMICS AND NUTRIENT CYCLING IN THE CENTRAL GYRE OF THE NORTH PACIFIC OCEAN1 , 1973 .

[6]  E. Carpenter,et al.  Competition for Urea among Estuarine Microorganisms , 1972 .

[7]  J. McCarthy The Uptake of Urea by Natural Populations of Marine PHYTOPLANKTON1 , 1972 .

[8]  J. McCarthy,et al.  a Comparison of Chemical, Isotopic, and Enzymatic Methods for Measuring Nitrogen Assimilation of Marine PHYTOPLANKTON1 , 1972 .

[9]  E. Carpenter,et al.  Comparison of laboratory and in situ measurements of urea decomposition by a marine diatom , 1972 .

[10]  E. Carpenter,et al.  Utilization of Urea by Some Marine PHYTOPLANKTERS1 , 1972 .

[11]  J. McCarthy,et al.  PHYTOPLANKTON GROWTH AND COMPOSITION IN SHIPBOARD CULTURES SUPPLIED WITH NITRATE, AMMONIUM, OR UREA AS THE NITROGEN SOURCE1 , 1971 .

[12]  L. Solórzano DETERMINATION OF AMMONIA IN NATURAL WATERS BY THE PHENOLHYPOCHLORITE METHOD 1 1 This research was fully supported by U.S. Atomic Energy Commission Contract No. ATS (11‐1) GEN 10, P.A. 20. , 1969 .

[13]  J. Hobbie,et al.  RESPIRATION CORRECTIONS FOR BACTERIAL UPTAKE OF DISSOLVED ORGANIC COMPOUNDS IN NATURAL WATERS1 , 1969 .

[14]  J. F. Thompson,et al.  Metabolism of urea by Chlorella vulgaris. , 1969, Plant physiology.

[15]  J. Goering,et al.  CYCLIC DIURNAL VARIATIONS IN THE UPTAKE OF AMMONIA AND NITRATE BY PHOTOSYNTHETIC ORGANISMS IN THE SARGASSO SEA , 1964 .

[16]  C. Yentsch,et al.  A method for the determination of phytoplankton chlorophyll and phaeophytin by fluorescence , 1963 .

[17]  G. N. Wilkinson Statistical estimations in enzyme kinetics. , 1961, The Biochemical journal.

[18]  A. Hattori STUDIES ON THE METABOLISM OF UREA AND OTHER NITROGENOUS COMPOUNDS IN CHLORELLA ELLIPSOIDEA III. ASSIMILATION OF UREA , 1960 .

[19]  J. Varner,et al.  Conversion of Carbon-14-Labeled Urea into Amino Acids in Leaves. , 1955, Plant physiology.

[20]  H. Skipper,et al.  Studies on the Photosynthetic Reaction. II. Sodium Formate and Urea Feeding Experiments with Nostoc muscorum. , 1954, Plant physiology.

[21]  E. Steemann Nielsen,et al.  The Use of Radio-active Carbon (C14) for Measuring Organic Production in the Sea , 1952 .

[22]  T. Parsons,et al.  A practical handbook of seawater analysis , 1968 .