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Marine Biology

, Volume 48, Issue 4, pp 343–348 | Cite as

Effects of sediments on the development of Macrocystis pyrifera gametophytes

  • J. S. Devinny
  • L. A. Volse
Article

Abstract

Rocky ocean bottoms are covered from time to time with small amounts of fine sediments. This material may interfere with the development of germling stages of Macrocystis pyrifera. Tests were performed by introducing sediments before and after spores were dispersed in culture dishes. 10 mg cm-2 of sediment, enough to occlude the surface, prevents spore attachment, greatly reducing the probability of survival. Smothering of established germlings was severe at 108 mg sediment cm-2. Water motion further reduced spore success where sediments were present, probably because of abrasive scour. Mechanisms of natural and human interference with M. pyrifera reproduction are suggested.

Keywords

Culture Dish Water Motion Fine Sediment Ocean Bottom Human Interference 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1978

Authors and Affiliations

  • J. S. Devinny
    • 1
  • L. A. Volse
    • 1
  1. 1.Environmental Engineering ProgramUniversity of Southern CaliforniaLos AngelesUSA

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