Group 1 - The core viewpoint of the articles highlights the increasing frequency and intensity of marine heatwaves due to climate change, which significantly impacts marine ecosystems [1][2] - A study conducted by researchers from the University of Victoria indicates that from 2014 to 2016, the North American Pacific coast experienced the longest recorded marine heatwave, with sea temperatures exceeding historical averages by 2 to 6 degrees Celsius for extended periods [1] - The research found unprecedented ecological disturbances along thousands of kilometers of the North American West Coast, with 240 species observed outside their traditional geographic ranges, including some species appearing over 1000 kilometers north of their typical habitats [1] Group 2 - The study revealed that marine heatwaves led to significant reductions in kelp and seagrass, unprecedented mortality rates among species such as sea stars and seabirds, and abnormal death events in marine mammals [1] - The cascading effects of marine heatwaves include decreased numbers and nutritional quality of small fish, which further jeopardizes higher-level predators and results in severe economic losses for fisheries [1] - Researchers emphasize the urgent need for proactive ecosystem-based marine protection strategies and measures to mitigate climate change [2]
新研究警示海洋热浪严重威胁海洋生态
Xin Hua She·2025-07-21 07:39