Hydrobiologia

, Volume 147, Issue 1, pp 329–334

Fertilization and male fertility in the rotifer Brachionus plicatilis

  • Terry W. Snell
  • Frank H. Hoff
Part Six: Reproduction

Abstract

The role of males in fertilization in the rotifer Brachionus plicatilis was examined. Neonate mictic females sometimes escaped fertilization even when sperm were present in their pseudocoeloms. Males made a major contribution to this fertilization failure through temporary infertility. As males aged, sperm numbers and motility decreased. Maternal diet was found to play a primary role in determining the fertilizing capacity of the F1 males. Females from log phase populations produced males with higher sperm counts and motility than females from stationary phase populations. A conditioning factor in the medium may increase sperm number and fertilization rate.

Keywords

fertilization sperm number sperm motility ageing diet Rotifera 

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Copyright information

© Dr W. Junk Publishers 1987

Authors and Affiliations

  • Terry W. Snell
    • 1
  • Frank H. Hoff
    • 2
  1. 1.Division of ScienceUniversity of TampaTampaUSA
  2. 2.Florida Aqua FarmsDade CityUSA

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