A black market crayfish ring has been snared after a four-month surveillance sting.
Fishery Officers in Canterbury have seized a commercial fishing vessel, a motor vehicle and 60 rock lobster pots after the clampdown on black market sales of crayfish, or rock lobster.
MAF alleges the fisherman involved sold "a significant number" of the seafood delicacy directly to the public at night around Christchurch.
It is believed that the crays were not declared against the commercial fisherman's quota.
Commercial fishers are required under the Fisheries Act to land their catch to a Licensed Fish Receiver (LFR).