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Freeze-tolerance in the subarctic earthworm Eisenia nordenskioeldi (Eisen).

Author(s) : HOLMSTRUP M., FRIIS-PETERSEN B.

Type of article: Article

Summary

Worms cooled under dry conditions to -4.5 deg C for 24 hours had a mean temperature of crystallisation of -3.5 deg C. The survival rate of animals exposed in frozen soil for 56 days was 50 to 82% at temperatures between -4 and -10 deg C. After warming to summer temperatures, animals previously frozen produced viable egg capsules (cocoons). This is the first evidence for freeze-tolerance in an earthworm species.

Details

  • Original title: Freeze-tolerance in the subarctic earthworm Eisenia nordenskioeldi (Eisen).
  • Record ID : 1998-2558
  • Languages: English
  • Source: Cryo-Letters - vol. 18 - n. 3
  • Publication date: 1997/05
  • Document available for consultation in the library of the IIR headquarters only.

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