There are more rules and regulations in place such as legal size limits (minimum and maximum), fish that have been filleted, bait species and for other species such as abalone and lobster. Please note that taking species such as abalone, scallops and lobster requires a recreational sea fishing licence.
It is important to follow the size laws for fish as well as other aquatic species. Minimum and maximum size laws are in place to ensure the species will reach sexual maturity and therefore have a chance to reproduce. If for some reason an undersized fish is caught, then you must carefully and immediately return it to the water so it is given the best possible chance of survival.