Black abalone used to be the most abundant shellfish clinging to the rocks in the intertidal zone from Baja California to Oregon. Now they are rapidly disappearing in some areas and are extinct in others, according to a National Geographic News article. The article reflects comments and research by WSU Vancouver marine ecologist Brian Tissot.
For the full article and photos go to National Geographic News at http://news.nationalgeographic.com/news/2005/08/0809_050809_abalone.html