Up Close with a Lancetfish

Lancetfish

A lancetfish (Alepisaurus ferox) brought up from the twilight zone in the Tuesday night trawl. (Photo by Paul Caiger)

One of the highlights from the mid-water trawl last night on NOAA Ship Henry B. Bigelow was this lancetfish (Alepisaurus ferox). Lancetfish are one of the top predators in the twilight zone and can grow to more than 2 meters (6 feet) in length—though this one was only about 15 inches.

They are also voracious predators and well-documented cannibals that are known to target it’s own kind when other prey is scarce.