Ratapu said it was also concerning the men were local.
"We would expect them to have a greater knowledge of the law, as well as the impact their actions could have on the ability of other pipi gatherers to collect their own legal take."
The pipi were seized and returned immediately to the sea.
Ratapu said the Ōhiwa pipi beds were an important source of kaimoana to the local community and visitors alike, and it was essential everybody played their part in protecting it for future generations.
He said fishery officers closely monitored the area and anyone taking more than their daily limit could expect to be held to account.
To report any suspicious fishing activity, call the MPI 0800 4 POACHER line, 0800 447 6224.