Seven months into South Australia's emergency fishing restrictions, the fallout from the state's harmful algal bloom is now showing up across Spencer Gulf's ecosystem — and recreational fishers want tougher rules to stay in place.
The most dramatic signal came on 19 April 2026, when ABC News reported that the pale octopus, Octopus pallidus, had effectively vanished from lower Spencer Gulf. A commercial fisher interviewed by the ABC said his catch had all but disappeared, and the species has reportedly not been landed in the gulf for more than a year. The cause has not been formally confirmed, and South Australian Research and Development Institute (SARDI) work continues.
Before that, on 3 April, ABC reported squid fishers operating on the Spencer Gulf side of the Yorke Peninsula describing the decline in stock as having reached crisis point. RecFish SA is pushing for extended closures so the remaining squid can spawn.
"There were reports of only small numbers of squid in the Spencer Gulf," RecFish SA executive officer Asher Dezsery told the ABC, arguing that current restrictions need to remain in place to let stocks rebuild.
A hint of recovery arrived within days. Local SA anglers, including through RecFish SA networks, recorded fresh observations of southern calamari eggs in Spencer Gulf in early April — early evidence that the remaining breeding population had resumed spawning. Fishers were cautious about calling it a turnaround and continued to push for longer-term closures.
The state government's response has been mixed. Parliament's own committee, reporting in February 2026, recommended the incoming government consider a commercial fishery licence buyback for operators hardest hit by the bloom. At the same time, PIRSA has since restored full recreational bag limits for Blue Swimmer Crab and Southern Garfish in Spencer Gulf, after cutting them in late 2025.
The reset means recreational anglers in the Spencer Gulf Fishing Zone can again keep 20 Blue Swimmer Crab per person (60 per boat) and 30 Southern Garfish per person (90 per boat). Squid, snapper and several other species remain under tighter restrictions.
The broader concern raised in industry forums — particularly on LinkedIn and fishing-group Facebook pages — is that SARDI's routine biomass surveys focus on economically important species. Invertebrate declines and algal-bloom impacts on species like octopus can go unreported until anglers, divers or commercial operators notice they are not catching what they used to.
The upshot for weekend fishers: Spencer Gulf is still in active triage. Pale octopus is gone. Squid is touch-and-go. The algal bloom has been detected in previously untouched parts of the gulf. And RecFish SA is pushing for SA to keep its foot on the brake even as some limits come back.
For anyone planning a winter trip across Port Augusta, Whyalla or the Yorke Peninsula, the safest move is to check the current PIRSA fishing limits quick-lookup page before every session.
