Good job, you just admitted to commiting an offense punishable by, if I'm reading it right, up to $100,000 fine or 5 years in prison. :slfg:
http://www.doc.govt.nz/conservation/threats-and-impacts/animal-pests/animal-pests-a-z/fish/facts/catfish/
http://www.doc.govt.nz/conservation/threats-and-impacts/animal-pests/animal-pests-a-z/fish/docs-work/