You can tell him that the fine for a FIRST OFFENCE for transporting carp to another water is $15,000:
$15,857.00 Noxious aquatic species - bring into Victoria, take, keep or possess, sell, transport, put into container, release into
protected waters - first offence
A second offence is $31,714.00
As to failing to kill carp under the Fisheries Act that is considered to be a Contravention of Order in Council or permit (Angling license which has a condition the killing of carp) with a maximum fine of $3,171.00
Give him the figures, they might alter his thinking- tell him he might leave his DNA on the carp he transports!
Fines seems a bit exsessive