This is a complete, systematic treatment of the marine algae (seaweeds) flora of California. The 726 species treated are each illustrated by a detailed line dra

"Created for those who work and play on the shores and in the shallow subtidal of the Pacific, this easy-to-use field guide is suitable for amateurs and profess

This is the largest species of sea pen encountered by divers in the northern Pacific. the short, slender branches of the stalk are white, as are the polyps.

The Gulf of California is one of the most beautiful places in the world, but it is also important to earth and marine scientists who work far beyond the area. I

Rarely have global battles in the war on invasive species been successful. Even tougher is fighting a mutant genetic clone of a natural counterpart on a marine