Mr Guy said the recreational sector campaign had drawn attention to concerns of wastage and outlined wide-ranging measures to better monitor the commercial fleet.
They include a phased introduction of onboard cameras and observers to monitor the amount of juvenile fish (under 25cm) killed in nets, to be returned to the sea under the Quota Management System.
Trish Rea, spokeswoman for recreational advocacy group Legasea, said it would still hurt "Mum and Dad" fishers who are more likely to land fish just over the legal limit.
"For people who fish inshore or from the shore rather than in big Haines Hunters out in the gulf, raising that minimum limit to 30cm may mean they miss out on a feed."
Richard Baker, past-president of the Sport Fishing Council, said 50 per cent of fishers in the Bay of Plenty and Northland returned home without landing snapper under the old size limit. While the so-called recreational "allowance" had been raised by 500 tonnes, the increase still did not reflect the actual recreational take, which had grown by an estimated 765 tonnes over the 1997 allowance.
Eric Barratt, managing director of Sanford Ltd, said it sent a poor message to the commercial sector - "look after the fishery but ultimately you will lose it".
Environmental Defence Society policy director Raewyn Peart said failure to implement a credible rebuild plan was extremely disappointing.
Mr Guy said over time he hoped to raise the recreational sector's share of the allowable catch to 50 per cent.
Dad fears for next generation's fishing
Saul Harman says already daughter Georgia has reeled in legal-sized snapper.
Beachlands resident Saul Harman spends time casting a line from the shores of Tamaki Strait and usually he'll land a snapper or two to take home. He often takes 4-year-old daughter Georgia, who he says has reeled in a couple of fish in the 27cm to 30cm range.
He says raising the minimum legal size to 30cm and reducing the daily bag limit to seven will penalise recreational fishers.
"It's going to do absolutely nothing to rebuild the fishery but it's really going to affect families that are going out to catch a feed because they can't afford to buy it in the shops.
"My greatest fear is they will reduce it to five fish and then three so my daughter won't be able to catch a fish at all."
Under new management
Snapper 1 fishing rules from April 1, 2014:
* Total allowable catch increased 500 tonnes to 8050 tonnes.
* Recreational "allowance" up from 2600 tonnes to 3100 tonnes.
* Minimum legal size (recreational): Increases from 27cm to 30cm.
* Minimum legal size (commercial): Remains 25cm.
* Daily bag limit (recreational): Drops from 9 to 7 fish.
