Dictionary of Ichthyology  

pot = a portable cage-like trap which fish enter through one or more small openings and from which they cannot readily escape because of the funnel shape. May be baited or not, made of various materials, of various sizes and shapes, and of various local names from country of use or species of capture, e.g. eel pot, Scottish creel. Used to catch crabs, lobsters and occasionally fishes.

"Gargool" at Kangan, Bushehr, Iran, used to catch groupers, Emperors, grunts, etc. Photograph by Brian W. Coad

Canadian Museum of Nature
www.briancoad.com