Ned and the Giant Prawn

Is it a cod? Is it a prawn? One thing's for certain you won't find one anywhere else. This piece of street-furniture surmounts a five metre tall cocktail stick between the National Marine Aquarium and the Mayflower Steps in Plymouth, Devon UK. It is usually referred to as the Plymouth Prawn or Barbican Prawn but I have been unable to ascertain its correct title.  I will investigate further next time I am on the Barbican. The second photo is a crop of the first taken with my new toy.