Background
Parrotfish have a harem social structure where one male has a territory that encompasses multiple females
Females can switch into the terminal supermale phase and gain a territory and females of their own
Hypotheses
1. Sex change is controlled by physiological factors
Supermale parrrotfish will be the same size regardless of female size on the same reef
2. Sex change is controlled by behavioral factors
Supermale size will be dependent on female size on the same reef
Predictions
Supermale size will be directly related to the size of the females on the reef
Methods
10 reefs in the Florida Keys will be sampled for Stoplight Parrotfish
Supermales and females on each reef will be measured and their relationship to each other on each individual reef plotted
ANOVA will be used to determine significance
Credits:
Created with images by Milos Prelevic - "Life of The Seas"