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Tasmania is tackling the invasive Longspined Sea Urchin by overfishing it, successfully halving its population and protecting kelp forests. A new study shows this innovative, government-subsidised approach is both ecologically effective and economically sustainable, offering a global model for managing climate-driven marine pests.

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One of Tasmania’s largest wild fisheries species is being overfished, but scientists say it’s a good thing. Why they say this practice could save species across the globe.

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This study explores how government incentives have created a commercial fishery to deliberately overfish an invasive urchin species, protecting kelp ecosystems. The approach balances exploitation and conservation, offering a novel model for managing climate-driven species expansions.

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Australia’s orange roughy fishery has received MSC certification despite strong opposition from environmental groups, who argue the species is still threatened. Fisheries representatives defend the move as a sign of successful stock recovery and compliance with the MSC’s updated, rigorous sustainability standards.

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From April 2023 to March 2024, global ocean surface temperatures remained at record highs, surpassing the previous 2015–2016 record by an average of 0.25 °C — an event estimated to occur only once every 512 years under current warming trends. Climate models confirm such extreme temperature jumps are possible due to human-driven global warming and suggest ocean temperatures will likely return to the long-term warming trend following this exceptional event.

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JCU researchers are hoping to unlock the enormous potential of grouper fish as a source of healthy seafood in Australia and Vietnam.

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Researchers in Tasmania are turning waste from invasive sea urchins—harvested to protect reefs—into a potential fertiliser for farms. Trials show the urchin waste raises soil pH and provides nutrients, offering a sustainable solution that benefits both agriculture and marine ecosystems.

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As the number of reports about kelp disappearing grows, kelpers on one Australian island are fighting to keep their industry alive.

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On King Island in the Bass Strait, locals are concerned about a decline in bull kelp – a type of seaweed – which they collect for global export.

Researchers are scrambling to figure out what could be behind it, but say it’s likely due to climate change.

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Australia experienced a summer of extreme climate events, including record-breaking heatwaves, bushfires, torrential rain, and widespread marine heatwaves that led to coral bleaching and mass fish deaths. With every state and territory facing above-average temperatures and the Bureau of Meteorology forecasting continued heat into autumn, the season underscored the intensifying impact of climate change across the country.