Pacific Electric Ray Dazzles From a Distance
Caution: it's electric! Drifting over the seafloor at night, the Pacific electric ray (Tetronarce californica) can produce an electric current to stun unsuspecting fishes--or deliver a discouraging jolt to a hungry predator. This ray was spotted at 70m while exploring the Southern California Borderland searching for ancient sea caves.
The primary focus of this expedition is the identification and characterization of submerged shorelines associated with offshore banks in the southern California Borderland region. This is a continuation of the effort by Nautilus over the last four years to acquire high-resolution mapping data of submerged shorelines and characterize primarily with remotely operated vehicles. This year’s expedition will focus on offshore banks, as those do not receive sediment from land which obscures shoreline features like caves from view.