Fish
Fish means:
(1) When used as a noun, means any finfish, mollusk, crustacean, or parts thereof, and all other forms of marine animal and plant life other than marine mammals and birds.
(2) When used as a verb, means to engage in “fishing,” as defined below.
Source
50 CFR § 600.10
Scoping language
Unless defined otherwise in other parts of Chapter VI, the terms in this chapter have the following meanings: