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A controlled-temperature plankton wheel
Robins, D.B.; Bellan, I.E. (1986). A controlled-temperature plankton wheel. Mar. Biol. (Berl.) 92(4): 587-593
In: Marine Biology. Springer: Heidelberg; Berlin. ISSN 0025-3162, more
Peer reviewed article  

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  • Robins, D.B.
  • Bellan, I.E.

    A controlled-temperature plankton wheel is described that is suitable for use on board a ship. The "IMER plankton wheel" system allows the use of various sizes of experimental bottles, up to 2.2 litres, the simulation of ambient light regimes and variable speed control for the rotation of the experimental bottles. The flexibility of the system was demonstrated by investigating the relationship between temperature and ingestion rate of an herbivorous copepod. Using four of the IMER plankton wheels simultaneously at four different temperatures (5°, 10°, 15° and 20° C), the ingestion rate of Calanus helgolandicus, feeding on Thalassiosira weissflogii, was shown to increase with increasing temperature; from a transformation of loge (ingestion rate), this relationship was calculated as a Q10 (10° to 20°C) for Copepodite Stage V (Q10 4.5) and adult female (Q10 2.7) C. helgolandicus. The possibility of damaging cells, by rotation at 2 rpm, was investigated using the spinose form of the diatom T. weissflogii. Such rotation did not cause any damage to the spines of T. weissflogii, but mixing this diatom with a magnetic stirrer bar did damage the spines to varying degrees, depending on the volume being mixed.

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