This U.S. industry comprises establishments primarily engaged in the commercial catching or taking of marine animals (except finfish and shellfish). Cross-References. Establishments primarily engaged in-- ? Animal or plant aquaculture (except finfish and shellfish)--are classified in U.S. Industry 112519, Other Aquaculture; ? The commercial catching or taking of finfish from their natural habitat--are classified in U.S. Industry 114111, Finfish Fishing; and ? The commercial catching or taking of shellfish from their natural habitat--are classified in U.S. Industry 114112, Shellfish Fishing.