How many letters does the top answer for “a north american river chub (hybopsis biguttatus).” have?

The most common answer is jerker (6 letters).

Crossword clue: a north american river chub (hybopsis biguttatus).

1 answer found in Letterora's clue database (Wikidata facts, Open Trivia DB, WordNet and Webster definitions — all licensed sources).

jerker 6 letters web-def

someone who gives a strong sudden pull