Snapper are central to coastal life across southern Australia, supporting fisheries, local businesses, and regional tourism. New Flinders University research has found that although snapper populations across southern Australia are highly connected, they are not fully interchangeable. The study shows that local environmental conditions help maintain important population adaptations, a finding with implications for stock recovery, fisheries management and resilience under climate change.

“Recovery is not just about fish moving from regions where they are more abundant. It’s also about whether the right fish are surviving and reproducing in the right places,” he says.

“If some populations carry locally useful traits, losing them could reduce the system’s ability to bounce back. This matters for local and regional fisheries of snapper and for re-stocking activities via aquaculture.”

link to open access paper…

https://onlinelibrary.wiley.com/doi/full/10.1111/mec.70273