New Zealand First MP Richard Prosser pointed to the 450 tonnes of snapper which was dumped annually by commercial fisheries and the exporting of snapper which would be considered, if caught by recreational fishers, to be undersize.
Mr Guy stressed that the proposals were still in the consultation phase.
Options included either a lower total recreation catch or controls on recreation catch. The controls range from cutting the bag limit to three, raising the minimum legal size to 36cm, or a combination of the two. The minister could go beyond these options in his final decision, which would come into force on October 1.
Public meetings on the proposed changes have attracted large crowds at Thames, Whakatane and Tauranga, putting pressure on the National MPs in those regions.
Coromandel MP Scott Simpson said he was opposed to a change.
"I ... would like to see some more evidence before a decision is made."
Rodney MP Mark Mitchell said if there was going to be change to snapper quotas, it should be shared between recreational and commercial fisheries. "... a lot of my friends, my family, it would be very, very rare that they would be catching the bag limit."