Meanwhile, Rachel has been busy collecting and rearing embryos from the upside-down jelly fish, Cassiopea xamachana.
C. xamachana do not obtain their symbionts until the polyp stage (shown here). These polyps (known as scyphistomae) will be reared in the lab and exposed to different strains of Symbiodinium. Once the polyps are infected with symbionts, they will be placed in different habitats to see if the symbiont type will change under different field conditions
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