Well, what is "Anko" fish?
Goosefish are found in the Arctic, Atlantic, Indian and Pacific Oceans where they live on sandy and muddy bottoms of the continental shelf and continental slope, at depths in excess of 1,000 metres (3,300 ft).
Like most other anglerfishes, they have a very large head with a large mouth that bears long, sharp, recurved teeth. Also like other anglerfishes, the first spine of the spinous dorsal fin has been modified as an angling apparatus (illicium) that bears a bulb-like or fleshy lure (esca).The angling apparatus is located at the tip of the snout just above the mouth and is used to attract prey. Lophiid anglerfishes also have two or three other dorsal fin spines located more posteriorly on the head, and a separate spinous dorsal fin with one to three spines located more posteriorly on the body just in front of the soft dorsal fin.In the more primitive anglerfish genera (Sladenia and Lophiodes) the gill opening extends partially in front of the elongated pectoral fin base. In the derived lophiid genera (Lophiomus and Lophius), and all other anglerfishes, the gill opening does not extend in front of the pectoral fin base. The largest monkfish may exceed 1.5 metres (4.9 ft) in length.
I don't think human eat them except Japanese. But, I guarantee they are delisious!
Ummmmmm, to scale, gut, fillet a fish, Those task is left to the professional! Even if I can't! Need special knives and tools, too!