Pisaster ochraceus
24cm
0-90m
393 sites
Asteriidae
Prepare to be star-struck! The Ochre Sea Star (Pisaster ochraceus) is a captivating sight for divers and snorkellers exploring the Eastern Pacific's intertidal and subtidal zones. Typically reaching around 24cm, but sometimes growing larger, these vibrant sea stars add a splash of color to rocky reefs and tide pools. While you might not find them at dedicated dive sites, keep an eye out while shore diving or snorkelling in shallower waters. These carnivores are voracious predators, feeding on mussels, barnacles, and snails, making them a keystone species in their ecosystem. Their presence is a sign of a healthy intertidal zone, so spotting one is a rewarding experience for any ocean enthusiast. Keep an eye out for them during low tide, clinging to rocks, or slowly hunting for their next meal.
Ochre Sea Stars are usually easy to spot thanks to their vibrant colours, ranging from ochre (yellowish-orange) to brown, purple, or even reddish. They typically have five arms, although some may have more due to regeneration. Their upper surface is covered in blunt spines arranged in a net-like pattern. Look for their tube feet on the underside, which they use for locomotion and gripping surfaces. They are relatively large, usually around 24cm in diameter, making them one of the more noticeable sea stars in their habitat.
108 sites
