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Feeding kinetics of Brachionus plicatilis fed Isochrysis galbana

  • John Korstad
  • Ôlav Vadstein
  • Yngvar Ôlsen
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 52)

Abstract

Clearance and ingestion rates of Brachionus plicatilis were measured using 14C-labeled Isochrysis galbana Tahiti. Experiments were conducted at 20–22 °C, 20 ppt salinity, and algal concentrations ranging from 0.13–64 mg Cl−1. Clearance rates were constant and maximal at concentrations <2 mg Cl−1 with maximum rates ranging from 3.4–6.9 µl ind. hr−l. The ingestion rate varied with food concentration, and was described by a rectilinear model. The maximum ingestion rate varied considerably, and was dependent on the growth rate of the rotifers. Depending on the pre-conditions, B. plicatilis ingested about 0.5 to 2 times its body carbon per day at saturating food concentrations.

Key words

Brachionus plicatilis feeding kinetics clearance rates ingestion rates Isochrysis 

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Copyright information

© Kluwer Academic Publishers 1989

Authors and Affiliations

  • John Korstad
    • 1
  • Ôlav Vadstein
    • 1
  • Yngvar Ôlsen
    • 1
  1. 1.Division of Applied Chemistry, Aquaculture GroupSINTEFTrondheimNorway

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