Copernicus Ocean State Report 9 (2025)

The latest Copernicus Ocean State Report provides an international example showing that record ocean heatwaves in 2023–2024 are reshaping marine ecosystems and disrupting fisheries and aquaculture worldwide. Warmer waters, rising seas, and acidification are driving species shifts, invasive outbreaks, and production losses, such as the collapse of clam farming in Italy’s Po River delta. The report highlights the urgent need for climate-ready management to protect seafood industries and coastal communities.

South Australian and Federal Governments announce the details of the $102.5 million Algal Bloom Summer Plan

The $102.5 million Algal Bloom Summer Plan delivers targeted relief and long-term recovery for South Australia’s fisheries and aquaculture sector, including grants of up to $150,000, fee relief, and new R&D funding. Backed by major habitat restoration and real-time ocean monitoring, the plan aims to restore marine ecosystems, protect seafood industries, and build resilience against future algal events.

Warming seas fuel mercury risks

New research shows that warming oceans may make seafood more toxic — not by adding mercury, but by reducing oxygen. As low-oxygen zones expand, microbes that convert mercury into its most harmful form, methylmercury, can thrive. This climate-driven process could increase toxin levels up the food chain, from plankton to people.

ABC – Red alert in the climate engine room

Australia’s record-hot oceans have driven extreme weather, from floods and cyclones to mass coral bleaching and toxic algal blooms, showing how warming seas are reshaping both climate and ecosystems.

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