, Volume 102, Issue 3, pp 145–150 | Cite as

Water temperature: A factor in the seasonality of two freshwater sponge species, Ephydatia fluviatilis and Spongilla alba

  • R. E. Harsha
  • J. C. Francis
  • M. A. Poirrier


Two freshwater sponge species, Ephvdatia fluviatilis and Spongilla alba, were maintained in a continuous-flow laboratory culture system at several different water temperatures. Experimental results suggest that sponge growth rate is affected by water temperature and that it is affected differently in the two species. The results correlate well with field observations on species abundance at different water temperatures and thereby support the view that water temperature is a factor determining seasonality in these species.


freshwater sponge culture water temperature seasonality 


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Copyright information

© Dr W. Junk Publishers 1983

Authors and Affiliations

  • R. E. Harsha
    • 1
  • J. C. Francis
    • 1
  • M. A. Poirrier
    • 1
  1. 1.Department of Biological SciencesUniversity of New OrleansNew OrleansU.S.A.

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