Shiver of Prickly Sharks
Two, three, ten! We're starting Shark Week with one of our most surprising sightings during this expedition--a shiver of prickly sharks! Dense mats of thorn-like denticles give their rough skin extra armor, and a standoffish common name. After our expedition team spotted these sharks at 161m depth in NOAA Channel Islands National Marine Sanctuary, our video production team noted 34-41 sharks--what's your fin-al count?
The Channel Islands National Marine Sanctuary (CINMS) is one of the agencies tasked with the protection of deep-water habitats, commercially important species, and deep sea coral ecosystems around the islands, yet lacks a detailed understanding of the distribution, abundance, and condition of the resources within the Sanctuary. Less than 50% of the seafloor within the CINMS boundaries has been mapped by high-resolution sonar, and the 2016 Nautilus expedition to the same region worked to cut this knowledge gap nearly in half.