Bladder wrack´s life cycle. Every plant bears either male or female receptacles. The plants have a dubble collection of chromosomes - one collection from the mother, the other from the father. Eggs and sperm have only one collection.
Close to the water surface
Endures drought and cold
Home for many
Protect themselves with poison and mucus
Eggs and sperms at the top
Bladder wrack without bladders
© Aquascope 2000 Tjärnö Marine Biological Laboratory, Strömstad, Sweden