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  1. No Access

    Article

    Description and use of an improved method for determining estuarine zooplankton grazing rates on phytoplankton

    A method of rapidly determining zooplankton grazing rates on natural mixed phytoplankton populations using 14C is described. The method simplifies the design of grazing experiments as the grazing time can be kept...

    F. B. Griffiths, J. Caperon in Marine Biology (1979)

  2. No Access

    Article

    Ammonium excretion rates in Kaneohe Bay, Hawaii, measured by a 15N isotope dilution technique

    Ammonium ion uptake and excretion rates were measured in water samples taken from Kaneohe Bay, Oahu, Hawaii, by monitoring the 15N/(15N+14N) isotope ratio in dissolved ammonium ion in incubated samples which had ...

    J. Caperon, D. Schell, J. Hirota, E. Laws in Marine Biology (1979)

  3. No Access

    Article

    Carbon and nitrogen metabolism by Monochrysis lutheri: Measurement of growth-rate-dependent respiration rates

    Dark respiration rates were measured and carbon-excretion rates calculated for a nitrate-limited population of the marine chrysophyte Monochrysis lutheri grown in continuous culture at 20°C on a 12 h light-12 h d...

    E. Laws, J. Caperon in Marine Biology (1976)

  4. No Access

    Article

    Synergistic effects of nitrate and ammonium ion on the growth and uptake kinetics of Monochrysis lutheri in continuous culture

    Continuous-culture results for Monochrysis lutheri grown on 12 h light-12 h dark cycles with a spectrum of ratios of nitrate and ammonium serving as limiting nutrients are compared with continuous light, exclusiv...

    J. Caperon, D. A. Ziemann in Marine Biology (1976)