ichthyophagic

The prolific virtues of fish have, no doubt, been greatly exaggerated, and it is certain that too much importance has been given to the observation made (rather upon slight grounds) by travellers as to the abundant population of ichthyophagic nations; nor would it be difficult to adduce facts to prove to the incredulous that the continuous use of fish excites lasciviousness in such persons only as are constitutionally inclined thereto.

Aphrodisiacs and Anti-aphrodisiacs: Three Essays on the Powers of Reproduction John Davenport 1833