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MARINE ECOLOGY PROGRESS SERIES Mar Ecol Prog Ser
 

Summary: MARINE ECOLOGY PROGRESS SERIES
Mar Ecol Prog Ser
Vol. 262: 173183, 2003 Published November 7
INTRODUCTION
Marine species with external fertilization rely on
the bulk mixing of water to bring male and female
gametes together. If mixing is turbulent, gamete dilu-
tion may occur rapidly, therefore reducing the proba-
bility of egg fertilization (Denny 1988). Modeling
approaches and experimental field data (with induced
spawning) show that fertilization success of organisms
with external fertilization is greatly reduced with
increasing water motion (e.g. Pennington 1985, Denny
& Shibata 1989, Levitan et al. 1992, Oliver & Babcock
1992). However, in dioecious organisms with separate
male and female individuals, some mixing may be
necessary for gamete encounter and fertilization
(Denny & Shibata 1989). Because of the greater proba-
bility of gamete encounters when self-fertilization is
possible, both monoecious species, in which the male

  

Source: Alberto, Filipe - Centro de Ciencias do Mar, Universidade do Algarve

 

Collections: Environmental Sciences and Ecology; Biology and Medicine