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Field experiments on egg production in the fresh-water Sponge Spongilla lacustris

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Abstract

Short (0.3 cm) and long (1.5–2.5 cm) lengths of laboratory-stored branches of gemmulated S. lacustris were implanted in the pond of origin on three dates approximately one, two, and three months after the time of normal gemmule hatching. The sponges derived from these implants produced eggs in both old and new tissue for three to four weeks following gemmule hatching. The significance of these results with respect to the control of egg production in natural populations is discussed.

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References

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Authors and Affiliations

  1. Department of Biological Sciences, Dartmouth College, 03755, Hanover, New Hampshire, USA

    John J. Gilbert & George S. de Nagy

  2. Department of Biology, University of Hartford, 06117, West Hartford, Connecticut, USA

    Tracy L. Simpson

Authors
  1. John J. Gilbert
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  2. Tracy L. Simpson
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  3. George S. de Nagy
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Gilbert, J.J., Simpson, T.L. & de Nagy, G.S. Field experiments on egg production in the fresh-water Sponge Spongilla lacustris. Hydrobiologia 46, 17–27 (1975). https://doi.org/10.1007/BF00038723

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  • DOI: https://doi.org/10.1007/BF00038723

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