Abalone fishers will need a licence for the first time when the Western Australian season opens at 7 am on Saturday.
Fisheries Minister Gordon Hill said the special abalone licence would cost $20, and $10 for pensioners and children.
A bag limit of 20 abalone per day would apply during the season, which would end at 9 am on December 20.
Fishing would be allowed only on weekends and public holidays and between 7 am and 9 am.
Mr Hill said the minimum size that could be taken was six centimetres.
"Undersize abalone taken this year are next year's catch," Mr Hill said.
"So I urge people to stick to the size and bag limits."
He said six temporary fisheries liaison officers would monitor the catching of abalone and two of these officers would have ethnic backgrounds to overcome language difficulties.
"All abalone fishers will be required to carry their licences and produce them if asked by a fisheries inspector," he said.
"It is crucial that all fishers recognise the need for a strong fishing conservation ethic."
An after-hours hotline would be set up for people to report illegal fishing activities.
Mr Hill said the number of hours available in the season had been more than halved since the last season in 1990, when there were 88 hours. This year people would be able to fish for 40 hours.
"I understand there is a good stock of legal-sized abalone on the reefs, but only because there was a closure last year," Mr Hill said.