Zhemchug Canyon has two main branches, each larger than typical continental margin canyons such as the Monterey Canyon.

Dr. Robison is eager to do wide-ranging studies of midwater ecology, comparing Monterey Canyon to the rest of the waters that encircle the planet.

Like Monterey Canyon to the north the canyon provides cold, nutrient-rich water to the surface during upwelling events.

This is the first known sea-floor canyon and is now called Monterey Canyon.

The scientists found it last year while using a tethered robot to explore the darkness of the Monterey Canyon off Monterey, Calif.

This species generally seems to be uncommon; an exception is in Monterey Canyon off California, where sharks of both sexes are abundant throughout the year.

A tracking study in Monterey Canyon found that this species exhibits strong diel migration patterns.

The prickly sharks in Monterey Canyon regularly form aggregations that may number over thirty.

Starting only a few hundred yards offshore from Moss Landing, the Monterey Canyon plummets to a depth of over 10, 000ft.

Five female Gonatus onyx squids have been observed in Monterey Canyon dragging a membrane sack containing 2,000 to 3,000 developing eggs.