pompano vs sablefish

pompano

noun
  • An edible butterfish, Peprilus simillimus, the Pacific pompano. 

  • Any of various carangid fish, of the genus Trachinotus or species Alectis ciliaris, the African pompano, from coastal parts of the North Atlantic. 

sablefish

noun
  • A dark-coloured marine fish, Anoplopoma fimbria, of North American Pacific waters. 

How often have the words pompano and sablefish occurred in a corpus of books? (source: Google Ngram Viewer )