Short-term variation in the <i>Calanus sinicus</i> ammonium excretion rate during the post-capture period

  • Kodama Taketoshi
    National Research Institute of Fisheries Science, Fisheries Research Agency
  • Takahashi Kazutaka
    Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • Nakamura Ken-ichi
    Graduate School of Agricultural and Life Sciences, The University of Tokyo
  • Shimode Shinji
    Manazuru Marine Center for Environmental Research and Education, Graduate School of Environment and Information Sciences, Yokohama National University
  • Yamaguchi Takafumi
    Manazuru Marine Center for Environmental Research and Education, Graduate School of Environment and Information Sciences, Yokohama National University
  • Ichikawa Tadafumi
    National Research Institute of Fisheries Science, Fisheries Research Agency

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  • Short-term variation in the Calanus sinicus ammonium excretion rate during the post-capture period

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Abstract

Short-term variation in the ammonium excretion rate by Calanus sinicus during the post-capture period was evaluated in 1-h incubations. Incubation water volume (13 mL vs. 100 mL) did not significantly affect the excretion rate, and the overall mean excretion rate of C. sinicus was similar to reported values from congeneric species. However, the 24-h variations in the excretion rate denoted that acclimation stress decreased the excretion rates 1–2 h after introduction to a no-food condition. The effect of presence/absence of food was not significant up to 24 h after capture.

Journal

  • Plankton and Benthos Research

    Plankton and Benthos Research 10 (1), 75-79, 2015

    The Plankton Society of Japan, The Japanese Association of Benthology

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