Mussels and Barnacles share an interesting relationship of mutualism and competition (well from the little that I have read). Barnacles are better at starting new colonies, but they thrive better with the mussels around. However, once mussels are recruited, the density of the colony is dictated by and can be dominated by the mussels. The barnacles can however also recruit mussel predators to keep the mussels in check. Love-hate relationships, that help both parties thrive. Nature is amazing!
Mussels are dominating here. Time to recruit some mussel predators!
Way to go team barnacles 😀
California mussels and gooseneck barnacles on a rock, EL Matador State Beach, Malibu, CA
In response to the weekly photo challenge: dense