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Renowned climate and science correspondent Georgina Rannard shares insights from scientists predicting a potential increase in endangered sharks, rays, and native oysters across the UK due to rising ocean temperatures. As these 19 threatened marine species seek new habitats, some may struggle to adapt, like the world’s longest-living animal, a clam. The Centre for Environment, Fisheries and Aquaculture Science (Cefas) conducted a groundbreaking study mapping the responses of these species to climate change in UK seas for the first time.
The researchers highlighted the likelihood of biodiversity hotspots emerging in parts of the North Sea over the next 50 years, as many marine creatures seek new territories. However, the repercussions of climate change could also adversely impact the marine ecosystem. A recent intense heatwave in May caused UK waters to warm up to 4 degrees above average, emphasizing the critical importance of the sea to the nation’s food security and employment.
It is crucial for the government to utilize this analysis to ensure the continued protection of marine species within Marine Protected Areas (MPAs) amidst changing habitats. With oceans absorbing up to 90% of excess heat generated by human activities like burning fossil fuels, the warming phenomenon has hit the UK seas particularly hard. Fishing communities and sea swimmers have already witnessed noticeable changes, including increased jellyfish presence and unexpected Mediterranean octopus catches.
The study’s projections until 2060 compared shifting ocean conditions to the preferred habitats of vulnerable species, revealing that mobile organisms are more likely to cope with the changing environment than static species. While some species like native oysters and basking sharks are predicted to thrive, others, such as the sea pen and ocean quahog, face habitat loss and survival challenges. Protecting these vulnerable species from threats like fishing practices, diseases, and pollution is paramount to ensuring their survival and thriving in new habitats
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