(Thanks to Tommo for finding the relevant regulations, and translating to common names)
The following regulations are specific to skiboating and spearfishing, not Rock & Surf:
Regulation:
Regulation 3(G), the catching of linefish by recreational anglers from the shore, and the catching, including spearfishing, of pelagic bony fish of the families Scombridae, Carangidae, Pomatomidae, Coryphaenidae, Rachycentridae, Xiphiidae, Ostiophoridae and Sphyraenidae, the species Aprion virescens, as well as pelagic cartilaginous fish of the families Carcharinidae, Isuridae, Sphymidae, Alopiidae and Odontaspididae from a vessel in the Trafalgar Marine Protected Area, and in the restricted areas of the St Lucia and Maputaland Marine Protected Areas.
List of permissable species in above families:
Scombridae: All Tuna’s, Mackerels and Bonito’s; Wahoo, All Mackerel.
Carangidae: All Kingfish family, Mirrorfish, scads, rainbow runner, Garrick, pilotfish, queenfishes, yellowtail, amberjack, pompanos.
Coryphaenidae: Dorado
Rachycentridae: Cobia (prodigal son)
Pomatomidae: Shad
Xiphidae: Broadbill
Istiophoridae: Sailfish, spearfishes and marlins
Sphyraenidae: Barracudas
Aprion virescens: Green Jobfish (kaakap)
Please note that new regulations are imminent and will be published in the Government Gazette. Species like green jobfish and kingfish will most likely be removed.