People are being urged to report rogue fishers as more than 150 expiation notices were issued during the summer school holiday period.
In December and January, 165 expiations were issued to rogue recreational fishers worth more than $83,000, with 114 of these specifically in relation to the taking of blue swimmer crabs.
Primary Industries and Regional Development Minister David Basham said with warm days still on the horizon, this was a timely reminder that often the best intel received was from responsible fishers.
"The majority of fishers follow the rules to ensure the long-term sustainability of our fish stocks for future generations to enjoy," Mr Basham said.
"It's disappointing to have this many fishers caught doing the wrong thing over the school holiday period.
"This sort of blatant disregard by a minority of people, infuriates everyone and has the potential to risk the sustainability of our fisheries.
"More than two-thirds of the people caught doing the wrong thing were fishing for blue swimmer crabs and what really irks me is that most of those offenders caught with undersized crabs had a measuring device with them.
"Rogue fishers who are caught doing the wrong thing risk a significant hit to the hip pocket and these fishers have learnt the hard way with more than $83,000 in on-the-spot fines.
"It's disappointing to have this many fishers think they are above the law. These rogue fishers infuriate everyone. Remember that you can help us crack down on fishers doing the wrong thing.
"If you see anyone breaking the rules, please report it through the 24-hour FISHWATCH number on 1800 065 522, or via the SA Recreational Fishing App."
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