On the hibernation of Spongilla lacustris (L.)

  • Erik Zeuthen
  • Published 2004 in Zeitschrift für vergleichende Physiologie


The osmotic pressure of the summer-sponge is about 25–30 mM NaCl. At and after gemmulation it increases to about 110 mM (in a single case 175 mM was found), due to a liberation of small organic molecules. Osmotic pressure remains constant for a time, but in January and February (i. e. before the germination) it is again reduced to the summer values. The… (More)
DOI: 10.1007/BF00339410

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