piscatorialist vs troller

piscatorialist

noun
  • A person with an interest in fish or fishing. 

troller

noun
  • One who fishes by trolling. 

  • An engine-powered fishing boat, used for moving slowly while fishing lines drag behind, sometimes able to sail in shallow water. 

  • A troll; a user who maliciously provokes others. 

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