ISSN:
1573-5117
Keywords:
gemmules
;
desiccation
;
low temperature
;
Porifera and Anheteromeyenia ryderi
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract Gemmules of Anheteromeyenia ryderi survived 24 h exposure to air temperatures as low as −20 °C under laboratory conditions. Drying the gemmules of A. ryderi at 5 °C under laboratory conditions resulted in a reduced viability and a slower germination rate following rehydration compared with undried control gemmules. Only 25% of the gemmules germinated after drying for one month. Up to 25% of the gemmules of A. ryderi that were tested survived aerial exposure from early November to early April when a pond in Connecticut inhabited by this sponge was drained. During this period air temperatures dropped to as low as −16 °C. Continued aerial exposure of the gemmules during the summer resulted in nearly complete gemmule mortality.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00008191
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