The definition of “trade dispute" in section 35(1) (interpretation) shall apply to share fishermen with the effect that the owner (or managing owner if there is more than one owner) of a fishing boat shall be treated as the employer of any share fisherman (other than himself) ordinarily employed as master or member of the crew of, or making or mending any gear appurtenant to, or performing other services ancillary to or in connection with, that fishing boat, and any such share fisherman shall be treated as his employee.