Check out the violation schedule for not having a fishery permit.
The northeast - first offense. $5000 to $80,000
19) What is the penalty for not registering?
Penalties will vary, depending upon the circumstances of a specific situation. You may view the penalty schedule used by Law Enforcement personnel as guidance in assessing and seeking penalties for violation of the registration requirement at: http://www.gc.noaa.gov/enforce-office3.html