seiner vs trawler

seiner

noun
  • A fishing vessel used for seining. 

  • A fisherman who uses a seine to catch fish. 

trawler

noun
  • A fishing boat that uses a trawl net or dragnet to catch fish. 

  • A fisherman who uses a trawl net. 

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