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...

a starfish, Pisaster ochraceus. When studying the low intertidal coasts of Washington state, Paine found that predation by P. ochraceus was a major factor...

ochraceus. Their range extends along the Pacific coast from Alaska to southern California in the intertidal zone. The largest individuals of Pisaster...

his 1969 paper, Paine proposed the keystone species concept, using Pisaster ochraceus, a species of starfish generally known as ochre starfish, and Mytilus...

chiton's only predator, but others list such animals as the sea star Pisaster ochraceus, some octopus species, and the sea otter as predators upon the gumboot...

affected population sizes and dynamics. A study of the ochre sea star (Pisaster ochraceus) populations from San Diego, California, to southern British Columbia...

blue", and "lighthouse white"). These colours symbolize the native Pisaster ochraceus sea star, the Pacific Ocean, and the region's lighthouses. The first...

ascidian Styela gibbsi. Another predator is the starfish species Pisaster ochraceus. A stalked barnacle in the Iblomorpha, Chaetolepas calcitergum, lacks...

madreporite's function in maintaining fluid has been experimentally tested on Pisaster ochraceus, wherein sea stars with blocked madreporites were unable to readjust...

the keystone species concept to explain the relationship between Pisaster ochraceus, a species of starfish, and Mytilus californianus, a species of mussel...