rocky reefs
Underwater stone ridges
Rocky reefs are underwater rock formations that rise from the ocean floor, creating distinct marine habitats.
Unlike coral reefs built by living organisms, rocky reefs are geological structures—submerged ridges, outcroppings, and boulder fields.
They support diverse ecosystems, providing surfaces for kelp, algae, and invertebrates, and shelter for fish: The rocky reefs off the coast attract divers and fishermen alike.
- crashing wavesSurf hitting the shore
- wave actionMotion of ocean swells
- fishGilled aquatic vertebrate
- coralMarine skeletal formation
- sea urchinsSpiny spherical marine invertebrates
marine · bedrock · kelp · marine life · scuba diving · anemones · encrusted · crevices · outcrop · grouper · tide pools · algae · barnacles · intertidal · granite · erosion · basalt · snorkeling
- reefsreefs, barrier reefs, atolls, shallow reefs, tropical reefs
- kelp forestkelp, giant kelp, bull kelp, holdfast, holdfasts
- seafloorseabed, seafloor, ocean floor, mid-ocean ridge, sea bed
- seafloor lifesea cucumber, sea cucumbers, sea urchin, sea urchins, sand dollar