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Pycnopodia helianthoides, commonly known as the sunflower sea star, is a large sea star found in the northeastern Pacific Ocean. [3] The only species of its genus , it is among the largest sea stars in the world, with a maximum arm span of 1 m (3.3 ft).
Which species of starfish are the most commonly seen at snorkeling depth? In the Caribbean, the cushion starfish is the most abundant species. Easy to find even at shallow depths, it is possible to encounter hundreds of them at some spots, forming real “carpets” on the sand.
Measuring 24 inches in diameter, the Giant Sea Star likes to live in rocky areas, usually in shallow water. They may be attached directly to the ocean floor, on a rock, or even on pier supports if they are more adventurous.
Explore the sea stars, or starfish, of Edmonds Underwater Park in the Pacific Northwest and Puget Sound. Leather Stars, Mottled Stars, Ochre Stars (Pisaster ochraceus), Rose Stars, Sunflower Stars, and more.
Pisaster ochraceus, generally known as the purple sea star, ochre sea star, or ochre starfish, is a common seastar found among the waters of the Pacific Ocean. Identified as a keystone species, P. ochraceus is considered an important indicator for the health of the intertidal zone. [2]
The echinoderms (Greek for spiny skin) include sea stars, sea urchins, feather stars, brittle stars and sea cucumbers. All are found in the marine environment in a range of habitats from intertidal surf beaches to the deepest oceans.
There are close to 2,000 species of sea stars in the world’s oceans. Most species have five arms, but some have many more—even as many as 40! At the Aquarium, you can see 10 species of sea stars throughout the exhibits.
