NANFA publishes the quarterly American Currents, with articles on collecting, keeping, observing, conserving and breeding North American fishes. It also organizes meetings and excursions at which members may discuss and (legally and responsibly) collect native fishes, remove exotic fishes, and conserve or restore natural habitats. The annual convention holds lectures, collecting trips, visits to natural history museums, public aquaria or zoos. NANFA also funds a Conservation Research Grant for research on the biology and conservation of endangered fishes, and the Gerald C. Corcoran Education Grant for educational outreach programs aimed at the general public.
There is also an active email discussion list, web site and a Forum for online discussion.
NANFA was founded in 1972.